1
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Nam M, Kim D, Kim MS. Simultaneous determination of total ergot alkaloids in wheat flour by Orbitrap mass spectrometry. Food Chem 2024; 441:138363. [PMID: 38199100 DOI: 10.1016/j.foodchem.2024.138363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 01/02/2024] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
The optimization screening methods for total ergot alkaloids in wheat extracts involve transforming them into a single compound, which is then analyzed via high-resolution Orbitrap mass spectrometry (Orbitrap MS). Orbitrap MS provides highly sensitive and accurate mass measurements, enhancing the selectivity and sensitivity of the analysis. Various hydrolysis and reduction methods have been investigated, and the use of superhydrides has emerged as the most effective method for transforming ergopeptine alkaloids. This study also focused on the epimerization of ergot alkaloids, particularly the differences between R- and S-epimers and their impact on the mass spectra. We validated our method by assessing the linearity, sensitivity, recovery, matrix effects, repeatability, and stability. The limits of detection and quantitation were set at 0.43 and 1.30 μg LSA/kg wheat, respectively. The proposed method offers a robust analytical approach for screening and quantifying total ergot alkaloids in wheat samples, addressing important concerns about their presence in food and feed.
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Affiliation(s)
- Miso Nam
- Food Analysis Research Center, Korea Food Research Institute, Republic of Korea
| | - Danbi Kim
- Food Analysis Research Center, Korea Food Research Institute, Republic of Korea
| | - Min-Sun Kim
- Food Analysis Research Center, Korea Food Research Institute, Republic of Korea.
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2
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Ribeiro LF, Babadopulos T, de Oliveira MG, Nishimaru F, Zatz R, Elias RM, Moraes O, Moraes E, Peterson LW, De Nucci G. An LC-MS/MS method for the simultaneous determination of 6-cyanodopamine, 6-nitrodopamine, 6-nitrodopa, 6-nitroadrenaline and 6-bromodopamine in human plasma and its clinical application in patients with chronic kidney disease. Biomed Chromatogr 2024:e5896. [PMID: 38797868 DOI: 10.1002/bmc.5896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/22/2024] [Accepted: 05/06/2024] [Indexed: 05/29/2024]
Abstract
The aim of this study was to develop a high-performance liquid chromatography-tandem mass spectrometry method for the determination of 6-cyanodopamine, 6-nitrodopamine, 6-nitrodopa, 6-nitroadrenaline and 6-bromodopamine in human plasma samples. Strata-X 33 μm solid-phase extraction cartridges were used for the extraction of the catecholamines from human plasma samples. The catecholamines were separated in a 150 × 3 mm Shim-pack GIST C18-AQ column with 3 μm particle size, placed in an oven at 40°C and perfused with 82% mobile phase A (acetonitrile-H2O; 90:10, v/v) + 0.4% acetic acid and 18% mobile phase B (deionized H2O) + 0.2% formic acid at a flow rate of 340 μl/min in isocratic mode. The injected volume was 4 μl and the run lasted 4 min. The method was linear from 0.1 to 20 ng/ml and the lower limit of quantification was 0.1 ng/ml for all analytes. The method was applied to evaluate the plasma levels of catecholamines in plasma of patients with chronic kidney disease and allowed the detection for the first time of circulating levels of the novel catecholamines 6-bromodopamine and 6-cyanodopamine.
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Affiliation(s)
- Luiz Fernando Ribeiro
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, SP, Brazil
| | - Tainah Babadopulos
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, SP, Brazil
| | - Mariana G de Oliveira
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, SP, Brazil
- Division of Nephrology, Department of Internal Medicine, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | | | - Roberto Zatz
- Division of Nephrology, Department of Internal Medicine, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Rosilene Motta Elias
- Division of Nephrology, Department of Internal Medicine, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Odorico Moraes
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Elisabete Moraes
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Gilberto De Nucci
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, SP, Brazil
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará, Fortaleza, CE, Brazil
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
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Ge Y, Liu M, Deng X, Liao L. Derivatization-Enhanced Analysis of Glucocorticoids for Structural Characterization by Gas Chromatography-Orbitrap High-Resolution Mass Spectrometry. Molecules 2023; 29:200. [PMID: 38202782 PMCID: PMC10780989 DOI: 10.3390/molecules29010200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/14/2023] [Accepted: 12/24/2023] [Indexed: 01/12/2024] Open
Abstract
Glucocorticoids are classified in section S9 of the Prohibited List of the World Anti-Doping Agency, due to a potential risk to improving physical performance and causing harm to the health of athletes. Based on the similar physiological actions of glucocorticoids, both differentiating known glucocorticoids and identifying unknown glucocorticoids are important for doping control. Gas chromatography coupled with mass spectrometry plays an important role in structural characterization because of abundant structural diagnostic ions produced by electron ionization. It also provides a chance to study the fragmentation patterns. Thus, an enhanced derivatization procedure was optimized to produce trimethylsilylated glucocorticoids and structural diagnostic ions of nineteen trimethylsilylated glucocorticoids were obtained by gas chromatography-orbitrap high-resolution mass spectrometry. In our study, glucocorticoids were classified as: 3-keto-4-ene, 1,4-diene-3-keto, 3α-hydroxy with saturated A-ring, 21-hydroxy-20-keto and halo substituent glucocorticoids based on their structural difference. Structural diagnostic ions that contributed to structural characterization were specifically presented and the fragment patterns were demonstrated according to the above categories. This study not only gave new insights into the structural characterization of these glucocorticoids but also provided evidence for tracing unknown glucocorticoids or chemically modified molecules.
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Affiliation(s)
| | | | | | - Lei Liao
- Shanghai Anti-Doping Laboratory, Shanghai University of Sport, 399 Changhai Road, Shanghai 200438, China; (Y.G.); (M.L.)
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San Román A, Abilleira E, Irizar A, Santa-Marina L, Gonzalez-Gaya B, Etxebarria N. Optimization for the analysis of 42 per- and polyfluorinated substances in human plasma: A high-throughput method for epidemiological studies. J Chromatogr A 2023; 1712:464481. [PMID: 37948771 DOI: 10.1016/j.chroma.2023.464481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 10/25/2023] [Accepted: 10/29/2023] [Indexed: 11/12/2023]
Abstract
There is an increasing awareness about the presence of per- and polyfluoroalkyl substances (PFAS) in many environmental and biological compartments, including human biofluids and tissues. However, the increase of PFAS replacements, including alternatives with shorter chain or less bioaccumulative potential, has broaden the exposure and the need for wider identification procedures. Moreover, the low volumes available for human blood or plasma, and the high number of samples needed to assess adequately epidemiologic studies, require particularly fast, reproducible and, if possible, miniaturized protocols. Therefore, accurate and robust analytical methods are still needed to quantify the PFAS's burden in humans and to understand potential health risks. In this study, we have developed and validated the analysis of 42 PFAS in human plasma by means of a Captiva 96-well micro extraction plate and a LC-q-Orbitrap. For the optimization of the analytical workflow, three extraction/clean-up methods were tested, and the selected one was validated using spiked artificial and bovine plasma at four concentration levels. The final method showed high absolute recoveries for the 42 PFAS, ranging from 52% to 130%, instrumental detection limits between 0.001-0.6 ng mL-1, overall good precision (CV < 20% for most of the PFAS) and a low uncertainty (< 30% of relative expanded deviation, k = 2). The method was further validated both with the NIST plasma Standard Reference Material 1950, showing that the accuracy of the provided results was between 63%-101%, and by the proficiency test arranged by the Arctic Monitoring Assessment Program (AMAP, 2022) obtaining satisfactory results within 95% confidence interval of the assigned value.
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Affiliation(s)
- Anne San Román
- Institute of Health Research Biodonostia, Paseo Dr. Begiristain, s/n, 20014 Donostia Gipuzkoa, Basque Country; Plentzia Marine Station (PiE), University of Basque Country (UPV/EHU), Areatza Hiribidea, 47, 48620 Plentzia, Bizkaia, Basque Country; Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940, Leioa, Basque Country, Spain; Department of Public Health from the Basque Government, Avenida Navarra, 4, 20013 Donostia Gipuzkoa, Basque Country.
| | - Eunate Abilleira
- Institute of Health Research Biodonostia, Paseo Dr. Begiristain, s/n, 20014 Donostia Gipuzkoa, Basque Country; Department of Public Health from the Basque Government, Avenida Navarra, 4, 20013 Donostia Gipuzkoa, Basque Country
| | - Amaia Irizar
- Institute of Health Research Biodonostia, Paseo Dr. Begiristain, s/n, 20014 Donostia Gipuzkoa, Basque Country
| | - Loreto Santa-Marina
- Institute of Health Research Biodonostia, Paseo Dr. Begiristain, s/n, 20014 Donostia Gipuzkoa, Basque Country; Department of Public Health from the Basque Government, Avenida Navarra, 4, 20013 Donostia Gipuzkoa, Basque Country
| | - Belen Gonzalez-Gaya
- Plentzia Marine Station (PiE), University of Basque Country (UPV/EHU), Areatza Hiribidea, 47, 48620 Plentzia, Bizkaia, Basque Country; Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940, Leioa, Basque Country, Spain
| | - Nestor Etxebarria
- Plentzia Marine Station (PiE), University of Basque Country (UPV/EHU), Areatza Hiribidea, 47, 48620 Plentzia, Bizkaia, Basque Country; Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940, Leioa, Basque Country, Spain
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Cristea CD, Radu M, Toboc A, Stan C, David V. Cationic exchange SPE combined with triple quadrupole UHPLC-MS/MS for detection of GHRHs in urine samples. Anal Biochem 2023; 682:115336. [PMID: 37806509 DOI: 10.1016/j.ab.2023.115336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 09/19/2023] [Accepted: 09/28/2023] [Indexed: 10/10/2023]
Abstract
The use of growth hormone-releasing hormones (GHRHs) is prohibited in sports according to the regulations of the World Anti-Doping Agency (WADA). Considering the complexity of urine samples and the low concentrations at which these analytes should be detected, analyzing GHRHs is a challenging task. In most of the studies, GHRHs are analyzed using UHPLC-HRMS with an orbitrap. The present developed and validated method for some GHRHs (tesamorelin, CJC-1295, sermorelin (GRF 1-29), sermorelin (3-29)-NH2, somatorelin) is based on the triple quadrupole UHPLC/MS-MS method with solid phase extraction (SPE) with weak cation exchange and is able to detect concentrations as low as 0.2 ng/mL (LOD), a limit of quantification (LOQ) at 0.6 ng/mL, and linearity across the range of 0.1 ng/mL to 1.2 ng/mL. The present method developed by our doping control laboratory was validated according to WADA technical documents for selectivity, limit of detection (LOD), carryover, reliability of detection, stability and recovery. The results show that the method has adequate recoveries and sensitivity, hence, it can be employed for routine screening in anti-doping laboratories.
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Affiliation(s)
- Cătălina-Diana Cristea
- University of Bucharest, Faculty of Chemistry, Department of Analytical and Physical Chemistry, Sos. Panduri, No. 90, Sect 5, Bucharest, 050663, Romania; Romanian Doping Control Laboratory, Bldv. Basarabia, No. 37-39, Sect 2, Bucharest, 022103, Romania.
| | - Mihai Radu
- Romanian Doping Control Laboratory, Bldv. Basarabia, No. 37-39, Sect 2, Bucharest, 022103, Romania.
| | - Ani Toboc
- Romanian Doping Control Laboratory, Bldv. Basarabia, No. 37-39, Sect 2, Bucharest, 022103, Romania.
| | - Cristina Stan
- Romanian Doping Control Laboratory, Bldv. Basarabia, No. 37-39, Sect 2, Bucharest, 022103, Romania.
| | - Victor David
- University of Bucharest, Faculty of Chemistry, Department of Analytical and Physical Chemistry, Sos. Panduri, No. 90, Sect 5, Bucharest, 050663, Romania.
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Flasch M, Koellensperger G, Warth B. Comparing the sensitivity of a low- and a high-resolution mass spectrometry approach for xenobiotic trace analysis: An exposome-type case study. Anal Chim Acta 2023; 1279:341740. [PMID: 37827628 DOI: 10.1016/j.aca.2023.341740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 10/14/2023]
Abstract
The chemical exposome consists of environmental exposures experienced throughout a lifetime but to date analytical approaches to investigate the plethora of low-abundance chemicals remain very limited. Liquid chromatography high-resolution mass spectrometry (HRMS) is commonly applied in untargeted exposome-wide analyses of xenobiotics in biological samples; however, human biomonitoring approaches usually utilize targeted low-resolution triple quadrupole (QQQ) mass spectrometry tailored to a small number of chemicals. HRMS can cover a broader chemical space but the detection of molecules from low-level exposure amidst a background of highly-abundant endogenous molecules has proven to be difficult. In this study, a triple quadrupole (QQQ) and a high-resolution mass spectrometer (HRMS) with identical chromatography were utilized to determine the limits of quantitation (LOQ) of >100 xenobiotics and estrogenic hormones in pure solvent and human urine. Both instrumental platforms are currently applied in exposure assessment studies and were operated in their most frequently used acquisition mode (full scan for HRMS and multiple reaction monitoring for QQQ) to mimic typical applications. For HRMS analyses, the median LOQ was 0.9 and 1.2 ng/mL in solvent and urine, respectively, while for low-resolution QQQ measurements, the median LOQ was 0.1 and 0.2 ng/mL in solvent and urine, respectively. To evaluate the calculated LOQs in complex biological samples, spot urine samples from 24 Nigerian female volunteers were investigated. The higher LOQ values for HRMS resulted in less quantified low-abundance analytes and decreased the number of compounds detected below the LOQ. Even at chronic low-dose exposure, such compounds might be relevant for human health because of high individual toxicity or potential mixture effects. Nevertheless, HRMS enabled the additional screening for exposure to unexpected/unknown analytes, including emerging compounds and biotransformation products. Therefore, a synergy between high- and low-resolution mass spectrometry may currently be the best option to elucidate and quantify xenobiotics in comprehensive exposome-wide association studies (ExWAS).
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Affiliation(s)
- Mira Flasch
- University of Vienna, Faculty of Chemistry, Department of Food Chemistry and Toxicology, Währinger Straße 38, 1090, Vienna, Austria; University of Vienna, Vienna Doctoral School in Chemistry, Währinger Straße 42, 1090, Vienna, Austria
| | - Gunda Koellensperger
- University of Vienna, Faculty of Chemistry, Department of Analytical Chemistry, Währinger Straße 38, 1090, Vienna, Austria; Exposome Austria, Research Infrastructure and National EIRENE Hub, Austria
| | - Benedikt Warth
- University of Vienna, Faculty of Chemistry, Department of Food Chemistry and Toxicology, Währinger Straße 38, 1090, Vienna, Austria; Exposome Austria, Research Infrastructure and National EIRENE Hub, Austria.
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Vrobel O, Tarkowski P. Can plant hormonomics be built on simple analysis? A review. PLANT METHODS 2023; 19:107. [PMID: 37833752 PMCID: PMC10576392 DOI: 10.1186/s13007-023-01090-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/08/2023] [Indexed: 10/15/2023]
Abstract
The field of plant hormonomics focuses on the qualitative and quantitative analysis of the hormone complement in plant samples, akin to other omics sciences. Plant hormones, alongside primary and secondary metabolites, govern vital processes throughout a plant's lifecycle. While active hormones have received significant attention, studying all related compounds provides valuable insights into internal processes. Conventional single-class plant hormone analysis employs thorough sample purification, short analysis and triple quadrupole tandem mass spectrometry. Conversely, comprehensive hormonomics analysis necessitates minimal purification, robust and efficient separation and better-performing mass spectrometry instruments. This review summarizes the current status of plant hormone analysis methods, focusing on sample preparation, advances in chromatographic separation and mass spectrometric detection, including a discussion on internal standard selection and the potential of derivatization. Moreover, current approaches for assessing the spatiotemporal distribution are evaluated. The review touches on the legitimacy of the term plant hormonomics by exploring the current status of methods and outlining possible future trends.
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Affiliation(s)
- Ondřej Vrobel
- Department of Biochemistry, Faculty of Science, Palacky University, Olomouc, Czech Republic
- Czech Advanced Technology and Research Institute, Palacky University, Olomouc, Czech Republic
- Department of Genetic Resources for Vegetables, Medicinal and Special Plants, Crop Research Institute, Olomouc, Czech Republic
| | - Petr Tarkowski
- Czech Advanced Technology and Research Institute, Palacky University, Olomouc, Czech Republic.
- Department of Genetic Resources for Vegetables, Medicinal and Special Plants, Crop Research Institute, Olomouc, Czech Republic.
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Wei XW, Zhang Y, Zhou Y, Li M, Liu ZF, Feng XS, Tan Y. A Review on Pretreatment and Analysis Methods of Polyether Antibiotics in Complex Samples. Crit Rev Anal Chem 2023:1-25. [PMID: 37647335 DOI: 10.1080/10408347.2023.2251156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Polyether antibiotics (PAs) are the anti-coccidiosis drugs used for treating and preventing coccidiosis. Studies show the residues of these antibiotics in food cause adversities and threaten human health. PAs thus need robust, rugged, and accurate methods for their analysis. This review encompasses pretreatment and detection methods of PAs in diverse matrices since 2010. Both conventional and developed methods are part of the pretreatments, such as dispersive liquid-liquid microextraction, solid-phase extraction, solid-phase microextraction, solvent front position extraction, QuEChERS (Quick Easy Cheap Effective Rugged and Safe), supercritical fluid extraction, and others. The analysis methods involve liquid chromatography coupled with detectors, sensors, etc. The pros and cons of various techniques for PAs have been discussed and future tendencies are proposed.
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Affiliation(s)
- Xin-Wei Wei
- School of Pharmacy, China Medical University, Shenyang, China
| | - Yuan Zhang
- School of Pharmacy, China Medical University, Shenyang, China
| | - Yu Zhou
- Department of Pharmacy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ming Li
- Division of Chemical Metrology and Analytical Science, National Institute of Metrology, Beijing, China
| | - Zhi-Fei Liu
- School of Pharmacy, China Medical University, Shenyang, China
| | - Xue-Song Feng
- School of Pharmacy, China Medical University, Shenyang, China
| | - Yue Tan
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, China
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Ivanova B, Spiteller M. Stochastic dynamic ultraviolet photofragmentation and high collision energy dissociation mass spectrometric kinetics of triadimenol and sucralose. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:32348-32370. [PMID: 36462070 DOI: 10.1007/s11356-022-24259-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 11/13/2022] [Indexed: 06/17/2023]
Abstract
The major goal of the paper is to provide empirical proof of view that innovative stochastic dynamic mass spectrometric equation D″SD = 2.6388·10-17·(< I2 > - < I > 2) determines the exact analyte concentration in solution via quantifying experimental variable intensity (I) of an analyte ion per any short span of scan time of any measurement, which also appears applicable to quantify laser-induced ultraviolet photofragmentation and high energy collision dissociation mass spectrometric processes. Triadimenol (1) and sucralose (2) using positive and negative polarity are examined. Laser irradiation energy λex = 213 nm is utilized. The issue is of central importance for monitoring organic micro-pollutants in surface, ground, and drinking water as well as tasks of risk assessment for environment and human health from contamination with organics. Despite the significant importance of the topic, answering the question of functional kinetic relations of such processes is by no means straightforward, so far, due to a lack of in-depth knowledge of mechanistic aspects of fragment paths of analytes in environment and foods as well as kinetics of processes under ultraviolet laser irradiation. Although there is truth in the classical theory of first-order reaction kinetics, it does not describe all kinetic data on analytes (1) and (2). A new damped sine wave functional response to a large amount of kinetics is presented. High-resolution mass spectrometric data and chemometrics are used. The study provides empirical evidence for claim that temporal behavior of mass spectrometric variable intensity under negative polarity obeys a certain scientific law written by means of equation above. It is the same for positive and negative soft-ionization mass spectrometric conditions.
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Affiliation(s)
- Bojidarka Ivanova
- Lehrstuhl Für Analytische Chemie, Institut Für Umweltforschung, Fakultät Für Chemie Und Chemische Biologie, Universität Dortmund, Otto-Hahn-Straße 6, 44221, Dortmund, Nordrhein-Westfalen, Germany.
| | - Michael Spiteller
- Lehrstuhl Für Analytische Chemie, Institut Für Umweltforschung, Fakultät Für Chemie Und Chemische Biologie, Universität Dortmund, Otto-Hahn-Straße 6, 44221, Dortmund, Nordrhein-Westfalen, Germany
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Bruns S, Wienhausen G, Scholz-Böttcher B, Wilkes H. Simultaneous quantification of all B vitamins and selected biosynthetic precursors in seawater and bacteria by means of different mass spectrometric approaches. Anal Bioanal Chem 2022; 414:7839-7854. [PMID: 36195729 PMCID: PMC9568461 DOI: 10.1007/s00216-022-04317-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 11/28/2022]
Abstract
B vitamins have high microbiological relevance in the marine environment, but their very low concentrations and the chemical heterogeneity of the individual vitamins make their analysis challenging. Mass spectrometric analysis of B vitamins in environmental samples at trace levels has mainly been performed using triple quadrupole mass spectrometers operated in targeted analysis mode. The development of such a method can be laborious and error prone. Additionally, high-resolution mass spectrometers can be used to measure a sample in full scan mode and subsequently search the total ion current chromatogram for extracted ion chromatograms of targeted vitamins. Three different analytical approaches for trace analysis of all B vitamins and some of their biosynthetic precursors were optimized and compared on two different mass spectrometers. A triple quadrupole mass spectrometer in selected reaction monitoring mode, and a high-resolution orbitrap mass spectrometer in parallel reaction monitoring, as well as in full scan mode were employed. Detection limits down to 10 ng/L were achieved with all three techniques. The methods were applied to a marine water sample from the North Sea and to the cell extract of a bacterial culture of Phaeobacter inhibens. Most vitamins and precursors were found in the bacterial cell extract and the seawater sample with all three measuring methods. The results of this study emphasize that, in addition to tandem mass spectrometry, high-resolution full scan mass spectrometry is a promising technique for the simultaneous detection of structurally diverse B vitamins in complex natural samples. This enables highly sensitive measurements without loss of detailed mass spectrometric information, which is inevitable when using a triple quadrupole system in MS/MS mode.
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Affiliation(s)
- Stefan Bruns
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University of Oldenburg, 26129, Oldenburg, Germany
| | - Gerrit Wienhausen
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University of Oldenburg, 26129, Oldenburg, Germany
| | - Barbara Scholz-Böttcher
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University of Oldenburg, 26129, Oldenburg, Germany
| | - Heinz Wilkes
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University of Oldenburg, 26129, Oldenburg, Germany.
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Mulani FA, Nandikol SS, Kajjihundi JS, Pathappa N, Puttappa S, Thulasiram HV. Ultra-high performance liquid chromatography Q-Orbitrap MS/MS-based profiling and quantification of limonoids in Meliaceae plants. Anal Bioanal Chem 2022; 414:6093-6106. [PMID: 35727329 DOI: 10.1007/s00216-022-04169-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/01/2022] [Accepted: 06/07/2022] [Indexed: 11/01/2022]
Abstract
Meliaceae plants have been extensively used in agriculture, folklore, and traditional medicine. They are the major storehouses for structurally diverse limonoids (meliacins) possessing various bioactivities like antifeedant, insecticidal, antimicrobial, etc. However accurate detection of these tetranortriterpenes from the vast pool of metabolites in plant tissue extracts or biological sample is a crucial challenge. Though the mass spectrum (MS) provides the molecular mass and the corresponding elemental composition, it cannot be relied precisely. The exact identification of a specific metabolite demands the MS/MS spectrum containing the signature product ions. In the present study, we have developed the UHPLC Q-Orbitrap-based method for identification, quantification, and characterization of limonoids in different plant tissue extracts requiring minimum plant material. Using this method, we carried out the limonoid profiling in different tissue extracts of sixteen Meliaceae plants and the identification of limonoids was performed by comparing the retention time (RT), ESI-( +)-MS spectrum, and HCD-MS/MS of the purified fifteen limonoids used as reference standards. Our results revealed that early intermediates of the limonoid biosynthetic pathway such as azadiradione, epoxyazadiradione, and gedunin occurred more commonly in Meliaceae plants. The MS/MS spectrum library of the fifteen limonoids generated in this study can be utilized for identification of these limonoids in other plant tissue extracts, botanical fertilizers, agrochemical formulations, and bio pesticides.
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Affiliation(s)
- Fayaj A Mulani
- Chemical Biology Unit, Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sharvani S Nandikol
- Chemical Biology Unit, Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Jagadeesh S Kajjihundi
- Department of Bioscience, University of Mysore, Post Graduate Center, Hemagangothri, Hassan, 573226, India
| | - Niranjana Pathappa
- Department of P G Studies and Research in Biochemistry, Kuvempu University, Jnana Sahyadri, Shankaraghatta, Karnataka, 577451, India
| | - Sharanappa Puttappa
- Department of Bioscience, University of Mysore, Post Graduate Center, Hemagangothri, Hassan, 573226, India.
| | - Hirekodathakallu V Thulasiram
- Chemical Biology Unit, Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India. .,CSIR-Institute of Genomics and Integrative Biology, Mall Road, New Delhi, 110007, India.
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12
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Ivanova B, Spiteller M. Mass spectrometric stochastic dynamic 3D structural analysis of mixture of steroids in solution - Experimental and theoretical study. Steroids 2022; 181:109001. [PMID: 35257712 DOI: 10.1016/j.steroids.2022.109001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 02/23/2022] [Accepted: 02/28/2022] [Indexed: 12/16/2022]
Abstract
There is explored, herein, functional relation: Experimental mass spectrometric phenomenon, obeying a certain scientific law ⇔ 3D molecular conformations and electronic structures of analytes obtained for quantum chemical theories. The paper answers to questions: (a) What evidence claims these actual relations among measurable and theoretical parameters, experimental factors and molecular properties; (b) how the provided evidence is collected and used; and (c) how empirical proof relates to assign and explain mass spectrometric phenomena of steroids afforded by our innovative stochastic dynamic mass spectrometric formula, D″SD = 2.6388.10-17.(<I2>-<I>2), quantum chemical 3D conformations, electronic structures and energetics of molecules, respectively. The paper address issue concerning empirical evidence at very high-to-exact level of assignment of 3D molecular conformations of steroids to experimental mass spectrometric fragment ions, accounting precisely for (i) effect of protonation; (ii) intramolecular rearrangement for A-D rings of steroidal skeleton and proton transfer effect, if any; in addition to (iii) examination of enantiomers of steroids in mixture with different stereochemistry, (R) and (S), of a set of six atoms of the molecular backbone of hydrocortisone (1), deoxycorticosterone (2), progesterone (3) and methyltestosterone (4), respectively. Results from testosterone (5) are discussed, as well. There are used ultra-high resolution atmospheric pressure chemical ionization mass spectrometric data on analytes (1)-(4) at ng.(mL)-1 concentration levels in mixtures in solution obtained for positive operation mode. High accuracy static and molecular dynamic quantum chemical computations and chemometrics are also utilized. Experimental 3D structural parameters of steroids obtained for stochastic dynamic diffusion theory are correlated with available crystallographic data.
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Affiliation(s)
- Bojidarka Ivanova
- Lehrstuhl für Analytische Chemie, Institut für Umweltforschung, Fakultät für Chemie und Chemische Biologie, Universität Dortmund, Otto-Hahn-Straße 6, 44221 Dortmund, Nordrhein-Westfalen, Germany.
| | - Michael Spiteller
- Lehrstuhl für Analytische Chemie, Institut für Umweltforschung, Fakultät für Chemie und Chemische Biologie, Universität Dortmund, Otto-Hahn-Straße 6, 44221 Dortmund, Nordrhein-Westfalen, Germany
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13
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Interest of HRMS systems in analytical toxicology: Focus on doping products. TOXICOLOGIE ANALYTIQUE ET CLINIQUE 2022. [DOI: 10.1016/j.toxac.2021.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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14
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Song Y, Feng XS. Sample Preparation and Analytical Methods for Steroid Hormones in Environmental and Food Samples: An Update Since 2012. Crit Rev Anal Chem 2021; 53:69-87. [PMID: 34152888 DOI: 10.1080/10408347.2021.1936446] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Steroid hormones (SHs) have been widely used over the past few decades as both human and veterinary drugs to prevent or treat infectious diseases and anti-inflammatory benefits in clinical. Unfortunately, their residues in foodstuffs and environmental samples can produce adverse effects on human and animal life such as disrupting the endocrine system. For these reasons, sensitive, simple and efficient methods have been developed for the determination of these compounds in various matrices. This critical review summarized the articles published in the period from 2012 to 2019 and can be used to help researchers to understand development of the sample pretreatment protocols and analytical methods used to detect SHs. The developed extraction and purification techniques used for steroids in different samples, such as cloud point extraction, solid phase extraction based on different novel materials, microextraction methods, QuEChERS and other methods are summarized and discussed. Analytical methods used to quantify these compounds, such as different chromatography methods, electrochemical methods, as well as other methods, are illustrated and compared. We focused on the latest advances in SHs pretreatment, and the application of new technologies in SHs analysis.
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Affiliation(s)
- Yang Song
- School of Pharmacy, China Medical University, Shenyang, China
| | - Xue-Song Feng
- School of Pharmacy, China Medical University, Shenyang, China
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15
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Decheng S, Xia F, Zhiming X, Shulin W, Shi W, Peilong W. Trace analysis of progesterone and 21 progestins in milk by ultra-performance liquid chromatography coupled with high-field quadrupole-orbitrap high-resolution mass spectrometry. Food Chem 2021; 361:130115. [PMID: 34049049 DOI: 10.1016/j.foodchem.2021.130115] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 04/09/2021] [Accepted: 05/12/2021] [Indexed: 01/19/2023]
Abstract
A method for rapid screening and quantification of progesterone and progestins in milks by ultrahigh-performance liquid chromatography coupled with quadrupole-high field Orbitrap high-resolution mass spectrometry (UHPLC QE HF HRMS) was established. Milks samples were extracted by acetonitrile + hexane (80 + 20), purified by prime HLB SPE and analyzed by UHPLC QE HF HRMS. The detection limit of progesterone and 21 progestins in milk is between 0.05 µg/kg -0.3 μg /kg, the correlation coefficient of progesterone and progestins in the corresponding concentration range is more than 0.99, recoveries for milk samples are between 80.7% and 108.3% with the relative deviation is less than 15%.The method fulfils the requirements of veterinary drug residue detection validation of EU and China, and successfully applied to detecting the μg/kg level of progesterone and monitoring residual of progestins in real milk.
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Affiliation(s)
- Suo Decheng
- Institute of Quality Standards and Testing Technology for Agricultural Product, Chinese Academy of Agricultural Science, Beijing 100081, China
| | - Fan Xia
- Institute of Quality Standards and Testing Technology for Agricultural Product, Chinese Academy of Agricultural Science, Beijing 100081, China
| | - Xiao Zhiming
- Institute of Quality Standards and Testing Technology for Agricultural Product, Chinese Academy of Agricultural Science, Beijing 100081, China
| | - Wei Shulin
- Institute of Quality Standards and Testing Technology for Agricultural Product, Chinese Academy of Agricultural Science, Beijing 100081, China
| | - Wang Shi
- Institute of Quality Standards and Testing Technology for Agricultural Product, Chinese Academy of Agricultural Science, Beijing 100081, China
| | - Wang Peilong
- Institute of Quality Standards and Testing Technology for Agricultural Product, Chinese Academy of Agricultural Science, Beijing 100081, China.
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16
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Hu S, Zhao M, Wang Z, Yang J, Chen D, Yan P. Development of a pH-dependent homogeneous liquid-liquid extraction by cold-induced phase separation in acetonitrile/water mixtures for determination of quinolone residues in animal-derived foods. J Chromatogr A 2021; 1649:462235. [PMID: 34038778 DOI: 10.1016/j.chroma.2021.462235] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/19/2021] [Accepted: 05/05/2021] [Indexed: 11/15/2022]
Abstract
A simple extraction procedure coupled with liquid chromatography-Q Orbitrap high resolution mass spectrometry (LC-Q Orbitrap HRMS) for the determination of 19 quinolones in animal-derived foods (pork, fish, egg and milk) has been developed. Sample preparation is based on homogeneous liquid-liquid extraction at pH > 9 using water-miscible acetonitrile with cold-induced phase separation. The procedure allowed one-step enrichment and cleanup of all the 19 quinolones with different logP properties to lower aqueous phase, which eliminated the process of preconcentration and re-dissolution for sample solution. Furthermore, an adsorption phenomenon was observed between conventional borosilicate glass injection vials and most of quinolones. In detection analysis, a scheduled variable full scan strategy was performed to improve detection performance in Q Orbitrap HRMS. Under optimal conditions, a superior limit of quantitation (0.028-0.192 μg/kg) in animal-derived foods was achieved using this proposed method. Lastly, this method was validated and applied successfully in real samples.
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Affiliation(s)
- Shuping Hu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.
| | - Min Zhao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.
| | - Zhongle Wang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.
| | - Jiaying Yang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.
| | - Dawei Chen
- NHC Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Science Research Unit (No. 2019RU014), China National Center for Food Safety Risk Assessment, China.
| | - Pengcheng Yan
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.
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17
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Zoller A, Wehmeyer K, Krivos K, Karb M, Stoffolano P, Nash JF, Balan G, Behymer L, Seeck M, Brum J, Zou Y, Price J. UHPLC-MS/HRMS method for the quantitation of pyrithione metabolites in human urine. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1173:122614. [PMID: 33819797 DOI: 10.1016/j.jchromb.2021.122614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 02/15/2021] [Accepted: 02/19/2021] [Indexed: 01/19/2023]
Abstract
Pyrithione glucuronide (PTG) and 2-thiopyridine glucuronide (ThPG) have been reported to be the major urinary metabolites in multiple animal species following administration of zinc pyrithione (ZnPT). However, the formation of these metabolites has never been confirmed in humans. A simple and rugged ultra-high-performance liquid chromatography high resolution mass spectrometry (UHPLC-MS/HRMS) method was developed and validated for the quantification of PTG and ThPG to investigate human metabolism of pyrithione following topical application of ZnPT as a shampoo. A UHPLC-MS/HRMS method was required due to the matrix interferences that were observed with the typical industry standard HPLC/tandem mass spectrometry (LC-MS/MS) methodology based on nominal mass triple quadrupole (QQQ) platform approach. Using UPLC-MS/HRMS, both PTG and ThPG were identified in human urine following topical application of ZnPT. The presence of these human urinary metabolites of pyrithione are consistent with findings from earlier studies in multiple animal species and suggest the metabolism of pyrithione is similar amongst those mammalian species studied.
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Affiliation(s)
- Ann Zoller
- Corporate Analytical, The Procter & Gamble Company, 8700 Mason-Montgomery Rd, Mason, OH 45040, United States
| | - Kenneth Wehmeyer
- Corporate Analytical, The Procter & Gamble Company, 8700 Mason-Montgomery Rd, Mason, OH 45040, United States
| | - Kady Krivos
- Corporate Analytical, The Procter & Gamble Company, 8700 Mason-Montgomery Rd, Mason, OH 45040, United States
| | - Michael Karb
- Corporate Analytical, The Procter & Gamble Company, 8700 Mason-Montgomery Rd, Mason, OH 45040, United States
| | - Peter Stoffolano
- Corporate Analytical, The Procter & Gamble Company, 8700 Mason-Montgomery Rd, Mason, OH 45040, United States
| | - J F Nash
- Global Product Stewardship, The Procter & Gamble Company, 8700 Mason-Montgomery Rd, Mason, OH 45040, United States
| | - Guhan Balan
- Global Clinical Sciences, The Procter & Gamble Company, 8700 Mason-Montgomery Rd, Mason, OH 45040, United States
| | - Lynda Behymer
- Global Clinical Sciences, The Procter & Gamble Company, 8700 Mason-Montgomery Rd, Mason, OH 45040, United States
| | - Molly Seeck
- Global Clinical Sciences, The Procter & Gamble Company, 8700 Mason-Montgomery Rd, Mason, OH 45040, United States
| | - Jose Brum
- Global Clinical Sciences, The Procter & Gamble Company, 8700 Mason-Montgomery Rd, Mason, OH 45040, United States
| | - Yuanshu Zou
- Global Clinical Sciences, The Procter & Gamble Company, 8700 Mason-Montgomery Rd, Mason, OH 45040, United States
| | - Jason Price
- Corporate Analytical, The Procter & Gamble Company, 8700 Mason-Montgomery Rd, Mason, OH 45040, United States.
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18
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Mycotoxins Analysis in Cereals and Related Foodstuffs by Liquid Chromatography-Tandem Mass Spectrometry Techniques. J FOOD QUALITY 2020. [DOI: 10.1155/2020/8888117] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In the entire world, cereals and related foodstuffs are used as an important source of energy, minerals, and vitamins. Nevertheless, their contamination with mycotoxins kept special attention due to harmful effects on human health. The present paper was conducted to evaluate published studies regarding the identification and characterization of mycotoxins in cereals and related foodstuffs by liquid chromatography coupled to (tandem) mass spectrometry (LC-MS/MS) techniques. For sample preparation, published studies based on the development of extraction and clean-up strategies including solid-phase extraction, solid-liquid extraction, and immunoaffinity columns, as well as on methods based on minimum clean-up (quick, easy, cheap, effective, rugged, and safe (QuEChERS)) technology, are examined. LC-MS/MS has become the golden method for the simultaneous multimycotoxin analysis, with different sample preparation approaches, due to the range of different physicochemical properties of these toxic products. Therefore, this new strategy can be an alternative for fast, simple, and accurate determination of multiclass mycotoxins in complex cereal samples.
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19
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Ivanova B, Spiteller M. Stochastic dynamic mass spectrometric quantification of steroids in mixture - Part II. Steroids 2020; 164:108750. [PMID: 33069721 DOI: 10.1016/j.steroids.2020.108750] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 10/04/2020] [Indexed: 01/25/2023]
Abstract
This paper deals with quantification of the following steroids in mixture: hydrocortisone (1), deoxycorticosterone (2), progesterone (3) and methyltestosterone (4) by means of mass spectrometry and implementing our innovative stochatic dynamic functional relationship between the analyte concentration in solution and the experimental variable intensity. The mass spectrometric data are correlated independently using chromatography. Chemometric analysis is carried out.
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Affiliation(s)
- Bojidarka Ivanova
- Lehrstuhl für Analytische Chemie, Institut für Umweltforschung, Fakultät für Chemie und Chemische Biologie, Universität Dortmund, Otto-Hahn-Straße 6, 44221 Dortmund, Nordrhein-Westfalen, Germany.
| | - Michael Spiteller
- Lehrstuhl für Analytische Chemie, Institut für Umweltforschung, Fakultät für Chemie und Chemische Biologie, Universität Dortmund, Otto-Hahn-Straße 6, 44221 Dortmund, Nordrhein-Westfalen, Germany
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20
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Determination of Synthetic Cathinones in Urine and Oral Fluid by Liquid Chromatography High-Resolution Mass Spectrometry and Low-Resolution Mass Spectrometry: A Method Comparison. SEPARATIONS 2020. [DOI: 10.3390/separations7040053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Synthetic cathinones have become very popular recreational drugs. Therefore, determining them in biological samples is now a matter of concern. In recent years, different methods that have been developed can determine these drugs at low-concentration levels. In general, liquid chromatography mass spectrometry detection plays an important role in these methods and the trend is to use low-resolution and high-resolution mass spectrometry. In this article, for the first time, we compare these two analyzers using an Orbitrap and a triple quadrupole mass spectrometer in order to determine a group of synthetic cathinones in urine and oral fluid samples. For this comparison, we evaluated and compared different parameters: Method detection and quantification limits, linearity, apparent recoveries, matrix effect, repeatability (intra-day), reproducibility (inter-day), and accuracy. Similar results were obtained for the two analyzers for the apparent recoveries and matrix effect. However, triple quadrupole showed higher sensitivity compared to Orbitrap for both urine and oral fluid samples. The quantification limits in urine and the detection limits in saliva were two times lower for triple quadrupole. Finally, when blind samples were analyzed to study the accuracy, similar results were obtained for both analyzers.
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21
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Enantiomeric determination of cathinones in environmental water samples by liquid chromatography-high resolution mass spectrometry. J Chromatogr A 2020; 1626:461359. [PMID: 32797838 DOI: 10.1016/j.chroma.2020.461359] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 11/20/2022]
Abstract
The enantiomeric determination of chiral drugs in the environment is of emerging concern since their enantiomers often exhibit stereoselectivity in environmental occurrence, fate and toxicity. In this study a method based on solid-phase extraction followed by chiral liquid chromatography and high-resolution mass spectrometry has been developed for the enantiomeric determination of a group of cathinones in river water and effluent wastewater. The enantioseparation was carried out using a Chiralpak CBH column in reversed-phase mode, and optimised by evaluating the effects of flow rate, buffer concentration and organic modifier. Under optimal conditions, good enantioseparations (Rs ≥1.2) were achieved for all the analytes. Two mixed-mode cation-exchange sorbents (Oasis WCX and Oasis MCX) in solid-phase extraction were evaluated in river water. Oasis MCX sorbent showed better performance with apparent recoveries ranging from 57 to 91% and matrix effect ranging from -10 to 15%. It is worth noting that a shifting of retention times and loss of enantioresolutions in environmental water samples was observed for all the analytes when the Oasis WCX sorbent was used. The method was validated with river water and effluent wastewater samples and its overall performance was satisfactory. The method quantification limits for all the analyte enantiomers ranged from 1.0 to 2.9 ng/L in river water, and from 2.3 to 6.0 ng/L in effluent wastewater. The repeatability and reproducibility values, expressed as% relative standard deviation (n = 5) were less than 15%. The method was then applied to the analysis of river water and effluent wastewater. The racemic methylone and methedrone (EF=0.49 and 0.46, respectively) were detected at low ng/L in some of the river water samples.
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22
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Zhang Y, Duan L, Wang B, Liu CS, Jia Y, Zhai N, Blaney L, Yu G. Efficient multiresidue determination method for 168 pharmaceuticals and metabolites: Optimization and application to raw wastewater, wastewater effluent, and surface water in Beijing, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 261:114113. [PMID: 32044613 DOI: 10.1016/j.envpol.2020.114113] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 01/19/2020] [Accepted: 01/30/2020] [Indexed: 05/23/2023]
Abstract
New analytical methods are needed to efficiently measure the growing list of priority pharmaceuticals in environmental samples. In this regard, a rapid, sensitive, and robust method was developed for quantitation of 168 pharmaceuticals and pharmaceutical metabolites using solid-phase extraction (SPE) and liquid chromatography with tandem mass spectrometry. The extraction protocol and instrumental efficiency were specifically addressed to increase analytical workload and throughput. The optimized protocols, which are five times more efficient than US EPA Method 1694, enabled analyte recoveries that ranged from 77% to 117% for 162 analytes with method quantitation limits (MQLs) as low as 0.1 ng L-1. To verify the suitability of the improved analytical method for environmental samples, 24-h composite samples of raw wastewater and wastewater effluent, along with downstream surface water, were analyzed. Overall, 143/168 target compounds were identified in at least one of the samples, and 130/168 analytes were present at concentrations above their MQLs. The total mass concentration of the measured analytes decreased by 93% during wastewater treatment. The analyte concentrations in the wastewater effluent were comparable to those measured in surface water 1 km downstream of the wastewater discharge point. Ultimately, the comprehensive method will serve as an important tool to inform the occurrence, fate, transport, and toxicity of a large suite of priority pharmaceuticals and pharmaceutical metabolites in natural and engineered systems.
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Affiliation(s)
- Yizhe Zhang
- Beijing Key Laboratory of Emerging Organic Contaminants Control, State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China; Research Institute for Environmental Innovation (Suzhou), Tsinghua, Suzhou, 215163, China
| | - Lei Duan
- Beijing Key Laboratory of Emerging Organic Contaminants Control, State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China
| | - Bin Wang
- Beijing Key Laboratory of Emerging Organic Contaminants Control, State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China; Research Institute for Environmental Innovation (Suzhou), Tsinghua, Suzhou, 215163, China.
| | - Cristina Su Liu
- Beijing Key Laboratory of Emerging Organic Contaminants Control, State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China
| | - Yanbo Jia
- Shanghai AB Sciex Analytical Instrument Trading Co., Ltd Beijing Branch Company, Beijing, 100015, China
| | - Nannan Zhai
- Shanghai AB Sciex Analytical Instrument Trading Co., Ltd Beijing Branch Company, Beijing, 100015, China
| | - Lee Blaney
- Beijing Key Laboratory of Emerging Organic Contaminants Control, State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China; University of Maryland Baltimore County, Department of Chemical, Biochemical, and Environmental Engineering, 1000 Hilltop Circle, Baltimore, MD, 21250, United States
| | - Gang Yu
- Beijing Key Laboratory of Emerging Organic Contaminants Control, State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China; Research Institute for Environmental Innovation (Suzhou), Tsinghua, Suzhou, 215163, China
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23
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Wu IL, Turnipseed SB, Storey JM, Andersen WC, Madson MR. Comparison of data acquisition modes with Orbitrap high-resolution mass spectrometry for targeted and non-targeted residue screening in aquacultured eel. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34:e8642. [PMID: 31702084 PMCID: PMC7722469 DOI: 10.1002/rcm.8642] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 10/23/2019] [Accepted: 10/24/2019] [Indexed: 05/05/2023]
Abstract
RATIONALE A current trend in monitoring chemical contaminants in animal products is to use high-resolution mass spectrometry (HRMS). In this study, several HRMS data acquistion modes using Orbitrap MS for simultaneous full-scan MS in combination with MS2 analysis were evaulated for their effectiveness in detecting and identifying both targeted and non-targeted veterinary drug residues in aquacultured eel samples. METHODS Sample preparation consisted of an acidic acetonitrile extraction with solid-phase extraction cleanup for analysis using LC/HRMS. Different data acquisition methods, including full-scan MS with non-targeted all ion fragmentation (AIF), multiplexed or variable data-independent analysis (mDIA or vDIA), targeted data-dependent MS2 (DDMS2), and parallel reaction monitoring (PRM) acquisition, were explored. The methods were evaluated with fortified eel tissue and imported eel samples to determine how many analytes could be detected and identified. RESULTS For non-targeted data acquisition, the number of analytes detected using DIA methods matched the results obtained by AIF, but the resulting product ion scans were more diagnostic because characteristic ions were predominant in the DIA MS2 spectra. In targeted analysis for a limited list of 68 compounds, full-scan MS followed by PRM was advantageous compared with DDMS2 because high-quality MS2 spectra were generated for almost all the analytes at target testing levels. CONCLUSIONS For residue screening, AIF has fast MS1 scan speed with adequate detection of product ions but may lead to false positive findings. DIA methods are better suited to monitor for both targeted and non-targeted compounds because they generate more characteristic MS2 spectra for retrospective library searching. For follow-up targeted analysis, PRM is prefered over DDMS2 when searching for a limited set of compounds.
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Affiliation(s)
- I-Lin Wu
- Animal Drugs Research Center, U.S. Food and Drug Administration, Denver Federal Center, P.O. Box 25087, Denver, Colorado, USA
| | - Sherri B Turnipseed
- Animal Drugs Research Center, U.S. Food and Drug Administration, Denver Federal Center, P.O. Box 25087, Denver, Colorado, USA
| | - Joseph M Storey
- Animal Drugs Research Center, U.S. Food and Drug Administration, Denver Federal Center, P.O. Box 25087, Denver, Colorado, USA
| | - Wendy C Andersen
- Animal Drugs Research Center, U.S. Food and Drug Administration, Denver Federal Center, P.O. Box 25087, Denver, Colorado, USA
| | - Mark R Madson
- Animal Drugs Research Center, U.S. Food and Drug Administration, Denver Federal Center, P.O. Box 25087, Denver, Colorado, USA
- Denver Laboratory, U.S. Food and Drug Administration, Denver Federal Center, Denver, Colorado, USA
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24
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Xu Z, Meng Q, Cao Q, Xiao Y, Liu H, Han G, Wei S, Yan J, Wu L. Selective Sensing of Copper Ions by Mesoporous Porphyrinic Metal–Organic Framework Nanoovals. Anal Chem 2019; 92:2201-2206. [DOI: 10.1021/acs.analchem.9b04900] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Zhiyuan Xu
- School of Information Science and Technology, North China University of Technology, No. 5 Jinyuanzhuang Street, Shijingshan District, Beijing 100144, China
| | - QingYi Meng
- School of Information Science and Technology, North China University of Technology, No. 5 Jinyuanzhuang Street, Shijingshan District, Beijing 100144, China
| | - Qiang Cao
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Chinese Academy of Fishery Sciences, Beijing 100141, China
- Shanghai Ocean University, Shanghai 201306, China
| | - Yushi Xiao
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Chinese Academy of Fishery Sciences, Beijing 100141, China
- Shanghai Ocean University, Shanghai 201306, China
| | - Huan Liu
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Chinese Academy of Fishery Sciences, Beijing 100141, China
| | - Gang Han
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Chinese Academy of Fishery Sciences, Beijing 100141, China
| | - Shuhua Wei
- School of Information Science and Technology, North China University of Technology, No. 5 Jinyuanzhuang Street, Shijingshan District, Beijing 100144, China
| | - Jiang Yan
- School of Information Science and Technology, North China University of Technology, No. 5 Jinyuanzhuang Street, Shijingshan District, Beijing 100144, China
| | - Lidong Wu
- Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture, Chinese Academy of Fishery Sciences, Beijing 100141, China
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Derivatization strategy combined with parallel reaction monitoring for the characterization of short-chain fatty acids and their hydroxylated derivatives in mouse. Anal Chim Acta 2019; 1100:66-74. [PMID: 31987154 DOI: 10.1016/j.aca.2019.11.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 11/07/2019] [Accepted: 11/11/2019] [Indexed: 12/11/2022]
Abstract
Short-chain fatty acids (SCFAs) and hydroxylated short-chain fatty acids (OH-SCFAs) are crucial intermediates related to a variety of diseases, such as bowel disease, cardiovascular disease, renal disease and cancer. A global profiling method to screen SCFAs and OH-SCFAs was developed by tagging these analytes with d0/d6-N, N-dimethyl-6,7-dihydro-5H-pyrrolo [3,4-d] pyrimidine-2-amine (d0/d6-DHPP) and using ultra-high performance liquid chromatography coupled with high-resolution tandem mass spectrometry (UHPLC-MS/MS) in parallel reaction monitoring (PRM) mode. The derivatization procedure was simple and rapid. The targeted compounds could be derivatized within 3 min under mild condition and analyzed without the need of further purification. The derivatization significantly improved the chromatographic performance and mass spectrometry response. The d6-DHPP tagged standards were used as internal standards, which remarkably reduced the matrix effects. The use of high resolution PRM mode made it possible to locate unknown SCFA and OH-SCFA species, and greatly reduced the false positive identification results. The developed method was successfully applied to the analysis of mouse fecal, serum, and liver tissue samples harvested from the breast cancer nude mice that had been exposed with 2,2',4,4'-tetrabromodiphenyl ether (BDE-47). Results showed that 40 analytes (10 SCFAs and 30 OH-SCFAs) were characterized. Semi-quantitative analysis indicated that the exposure of BDE-47 to the mice altered the SCFA and OH-SCFA metabolism, especially in the high dose group. This study provides a high-throughput method to characterize SCFAs and OH-SCFAs in mouse samples.
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Hidalgo‐Serrano M, Borrull F, Marcé RM, Pocurull E. Presence of benzotriazoles, benzothiazoles and benzenesulfonamides in surface water samples by liquid chromatography coupled to high‐resolution mass spectrometry. SEPARATION SCIENCE PLUS 2019. [DOI: 10.1002/sscp.201800140] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Míriam Hidalgo‐Serrano
- Department of Analytical Chemistry and Organic ChemistryUniversitat Rovira i Virgili Tarragona Spain
| | - Francesc Borrull
- Department of Analytical Chemistry and Organic ChemistryUniversitat Rovira i Virgili Tarragona Spain
| | - Rosa M. Marcé
- Department of Analytical Chemistry and Organic ChemistryUniversitat Rovira i Virgili Tarragona Spain
| | - Eva Pocurull
- Department of Analytical Chemistry and Organic ChemistryUniversitat Rovira i Virgili Tarragona Spain
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Rusko J, Jansons M, Pugajeva I, Zacs D, Bartkevics V. Development and optimization of confirmatory liquid chromatography—Orbitrap mass spectrometry method for the determination of 17 anticoccidials in poultry and eggs. J Pharm Biomed Anal 2019; 164:402-412. [DOI: 10.1016/j.jpba.2018.10.056] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 10/29/2018] [Accepted: 10/30/2018] [Indexed: 10/27/2022]
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Analysis of corticosteroids in samples of animal origin using QuEChERS and ultrahigh-performance liquid chromatography coupled to high-resolution mass spectrometry. Anal Bioanal Chem 2018; 411:449-457. [PMID: 30478515 DOI: 10.1007/s00216-018-1459-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 10/05/2018] [Accepted: 10/29/2018] [Indexed: 10/27/2022]
Abstract
A rapid and sensitive method for the confirmatory analysis of eight synthetic corticosteroids (betamethasone, dexamethasone, prednisolone, 6-methylprednisolone, triamcinolone, flumethasone, beclomethasone, fluocinolone acetonide) is proposed. The method is useful for detecting illegal treatments in different animal species. It consists of an extraction and cleanup using the quick, easy, cheap, effective, rugged, and safe (QuEChERS) strategy. Quantitative determination is achieved by ultrahigh-performance liquid chromatography coupled to high-resolution mass spectrometry with heated electrospray ionization in negative mode. Quantification is performed using surrogate matrix-matched standard calibration curve with dexamethasone-D4 as the internal standard. The method was validated for analyzing liver samples according to the criteria established by Decision 2002/657/EC. Linearity was assessed in the 1-10 μg kg-1 range and linear correlation coefficients were over 0.99 for all the analytes. CCα ranged from 0.04 to 0.16 μg kg-1 for substances without maximum residue limit. The method allows confident quantification and confirmation of corticosteroids in liver samples, and its simplicity makes it suitable for analyzing large numbers of samples.
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Gas-phase structural characterization of neuropeptides Y Y1 receptor antagonists using mass spectrometry: Orbitrap vs triple quadrupole. J Pharm Biomed Anal 2018; 151:227-234. [PMID: 29367160 DOI: 10.1016/j.jpba.2018.01.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 12/28/2017] [Accepted: 01/08/2018] [Indexed: 01/05/2023]
Abstract
Collision induced dissociation of triple quadrupole mass spectrometer (CID-QqQ) and high-energy collision dissociation (HCD) of Orbitrap were compared for four neuropeptides Y Y1 (NPY Y1) receptor antagonists and showed similar qualitative fragmentation and structural information. Orbitrap high resolution and high mass accuracy HCD fragmentation spectra allowed unambiguous identification of product ions in the range 0.04-4.25 ppm. Orbitrap mass spectrometry showed abundant analyte-specific product ions also observed on CID-QqQ. These results show the suitability of these product ions for use in quantitative analysis by MRM mode. In addition, it was found that all compounds could be determined at levels >1 μg L-1 using the QqQ instrument and that the detection limits for this analyzer ranged from 0.02 to 0.6 μg L-1. Overall, the results obtained from experiments acquired in QqQ show a good agreement with those acquired from the Orbitrap instrument allowing the use of this relatively inexpensive technique (QqQ) for accurate quantification of these compounds in clinical and academic applications.
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Malachová A, Stránská M, Václavíková M, Elliott CT, Black C, Meneely J, Hajšlová J, Ezekiel CN, Schuhmacher R, Krska R. Advanced LC-MS-based methods to study the co-occurrence and metabolization of multiple mycotoxins in cereals and cereal-based food. Anal Bioanal Chem 2018; 410:801-825. [PMID: 29273904 PMCID: PMC5775372 DOI: 10.1007/s00216-017-0750-7] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 11/03/2017] [Accepted: 11/06/2017] [Indexed: 12/21/2022]
Abstract
Liquid chromatography (LC) coupled with mass spectrometry (MS) is widely used for the determination of mycotoxins in cereals and cereal-based products. In addition to the regulated mycotoxins, for which official control is required, LC-MS is often used for the screening of a large range of mycotoxins and/or for the identification and characterization of novel metabolites. This review provides insight into the LC-MS methods used for the determination of co-occurring mycotoxins with special emphasis on multiple-analyte applications. The first part of the review is focused on targeted LC-MS approaches using cleanup methods such as solid-phase extraction and immunoaffinity chromatography, as well as on methods based on minimum cleanup (quick, easy, cheap, effective, rugged, and safe; QuEChERS) and dilute and shoot. The second part of the review deals with the untargeted determination of mycotoxins by LC coupled with high-resolution MS, which includes also metabolomics techniques to study the fate of mycotoxins in plants.
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Affiliation(s)
- Alexandra Malachová
- Center for Analytical Chemistry, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna (BOKU), Konrad Lorenz Str. 20, 3430, Tulln, Austria
| | - Milena Stránská
- Department of Food Analysis & Nutrition, Faculty of Food & Biochemical Technology, University of Chemistry & Technology, Technická 3, 166 28, Prague 6, Czech Republic
| | - Marta Václavíková
- Center for Analytical Chemistry, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna (BOKU), Konrad Lorenz Str. 20, 3430, Tulln, Austria
| | - Christopher T Elliott
- Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, 18-30 Malone Road, Belfast, BT9 5BN, UK
| | - Connor Black
- Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, 18-30 Malone Road, Belfast, BT9 5BN, UK
| | - Julie Meneely
- Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, 18-30 Malone Road, Belfast, BT9 5BN, UK
| | - Jana Hajšlová
- Department of Food Analysis & Nutrition, Faculty of Food & Biochemical Technology, University of Chemistry & Technology, Technická 3, 166 28, Prague 6, Czech Republic
| | - Chibundu N Ezekiel
- Department of Microbiology, Babcock University, Ilishan Remo, Ogun State, 121103, Nigeria
| | - Rainer Schuhmacher
- Center for Analytical Chemistry, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna (BOKU), Konrad Lorenz Str. 20, 3430, Tulln, Austria
| | - Rudolf Krska
- Center for Analytical Chemistry, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna (BOKU), Konrad Lorenz Str. 20, 3430, Tulln, Austria.
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Xiang L, Wei J, Tian XY, Wang B, Chan W, Li S, Tang Z, Zhang H, Cheang WS, Zhao Q, Zhao H, Yang Z, Hong Y, Huang Y, Cai Z. Comprehensive Analysis of Acylcarnitine Species in db/db Mouse Using a Novel Method of High-Resolution Parallel Reaction Monitoring Reveals Widespread Metabolic Dysfunction Induced by Diabetes. Anal Chem 2017; 89:10368-10375. [PMID: 28859482 DOI: 10.1021/acs.analchem.7b02283] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Acylcarnitines are exerting a variety of biological functions depending on the differences in lengths, saturation levels, and conjugation groups, which to a great extent contribute to the challenges of acylcarnitines quantifications due to various kinds of isomers. Here, we describe a novel method by using high-resolution parallel reaction monitoring (PRM) liquid chromatography-tandem mass spectrometry (LC-MS/MS). Both reversed-phase and normal-phase column were used in order to get accurate, reliable, widespread quantification of acylcarnitines, and without tedious sample preparation procedure. The method provided the most comprehensive acylcarnitine profile with high-resolution MS and MS/MS confirmation to date. A total of 117 acylcarnitines were detected from plasma and urine samples. The application of targeted profiling of acylcarnitines in db/m+ control and db/db diabetic mice indicated incomplete amino acid and fatty acid oxidation on diabetic mice. Interestingly, the reduction of medium odd-numbered chain acylcarnitines in urine samples was first observed between db/m+ and db/db mice. The high-resolution PRM method makes it possible to monitor the widespread metabolic changes of the acylcarnitines in response to stimuli. Besides, the accurate MS and MS/MS spectra data of the 117 acylcarnitines could be used as mass spectrometric resources for the identification of acylcarnitines.
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Affiliation(s)
- Li Xiang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University , Hong Kong 999077, P. R. China
| | - Juntong Wei
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University , Hong Kong 999077, P. R. China
| | - Xiao Yu Tian
- School of Biomedical Sciences, Chinese University of Hong Kong , Hong Kong 999077, P. R. China
| | - Bei Wang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University , Hong Kong 999077, P. R. China
| | - Wan Chan
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University , Hong Kong 999077, P. R. China
| | - Shangfu Li
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University , Hong Kong 999077, P. R. China
| | - Zhi Tang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University , Hong Kong 999077, P. R. China
| | - Hongsong Zhang
- School of Biomedical Sciences, Chinese University of Hong Kong , Hong Kong 999077, P. R. China
| | - Wai San Cheang
- School of Biomedical Sciences, Chinese University of Hong Kong , Hong Kong 999077, P. R. China
| | - Qian Zhao
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University , Hong Kong 999077, P. R. China
| | - Hongzhi Zhao
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University , Hong Kong 999077, P. R. China
| | - Zhiyi Yang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University , Hong Kong 999077, P. R. China
| | - Yanjun Hong
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University , Hong Kong 999077, P. R. China
| | - Yu Huang
- School of Biomedical Sciences, Chinese University of Hong Kong , Hong Kong 999077, P. R. China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University , Hong Kong 999077, P. R. China
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32
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Prosen H, Fontanals N, Borrull F, Marcé RM. Determination of seven drugs of abuse and their metabolites in surface and wastewater using solid-phase extraction coupled to liquid chromatography with high-resolution mass spectrometry. J Sep Sci 2017; 40:3621-3631. [DOI: 10.1002/jssc.201700287] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 07/04/2017] [Accepted: 07/09/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Helena Prosen
- Faculty of Chemistry and Chemical Technology; University of Ljubljana; Ljubljana Slovenia
| | - Núria Fontanals
- Department of Analytical Chemistry and Organic Chemistry; Universitat Rovira i Virgili; Tarragona Spain
| | - Francesc Borrull
- Department of Analytical Chemistry and Organic Chemistry; Universitat Rovira i Virgili; Tarragona Spain
| | - Rosa Maria Marcé
- Department of Analytical Chemistry and Organic Chemistry; Universitat Rovira i Virgili; Tarragona Spain
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33
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Rochat B. Proposed Confidence Scale and ID Score in the Identification of Known-Unknown Compounds Using High Resolution MS Data. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:709-723. [PMID: 28116700 DOI: 10.1007/s13361-016-1556-0] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 11/07/2016] [Accepted: 11/11/2016] [Indexed: 05/25/2023]
Abstract
High-resolution (HR) MS instruments recording HR-full scan allow analysts to go further beyond pre-acquisition choices. Untargeted acquisition can reveal unexpected compounds or concentrations and can be performed for preliminary diagnosis attempt. Then, revealed compounds will have to be identified for interpretations. Whereas the need of reference standards is mandatory to confirm identification, the diverse information collected from HRMS allows identifying unknown compounds with relatively high degree of confidence without reference standards injected in the same analytical sequence. However, there is a necessity to evaluate the degree of confidence in putative identifications, possibly before further targeted analyses. This is why a confidence scale and a score in the identification of (non-peptidic) known-unknown, defined as compounds with entries in database, is proposed for (LC-) HRMS data. The scale is based on two representative documents edited by the European Commission (2007/657/EC) and the Metabolomics Standard Initiative (MSI), in an attempt to build a bridge between the communities of metabolomics and screening labs. With this confidence scale, an identification (ID) score is determined as [a number, a letter, and a number] (e.g., 2D3), from the following three criteria: I, a General Identification Category (1, confirmed, 2, putatively identified, 3, annotated compounds/classes, and 4, unknown); II, a Chromatography Class based on the relative retention time (from the narrowest tolerance, A, to no chromatographic references, D); and III, an Identification Point Level (1, very high, 2, high, and 3, normal level) based on the number of identification points collected. Three putative identification examples of known-unknown will be presented. Graphical Abstract ᅟ.
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Affiliation(s)
- Bertrand Rochat
- Centre Hospitalier Universitaire Vaudois (CHUV), University Hospital of Lausanne, 1011, Lausanne, Switzerland.
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Hidasi AO, Groh KJ, Suter MJF, Schirmer K. Clobetasol propionate causes immunosuppression in zebrafish (Danio rerio) at environmentally relevant concentrations. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 138:16-24. [PMID: 27987419 DOI: 10.1016/j.ecoenv.2016.11.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 11/26/2016] [Accepted: 11/28/2016] [Indexed: 06/06/2023]
Abstract
Synthetic glucocorticoids (GCs) are potential endocrine disrupting compounds that have been detected in the aquatic environment around the world in the low ng/L (nanomolar) range. GCs are used as immunosuppressants in medicine. It is of high interest whether clobetasol propionate (CP), a highly potent GC, suppresses the inflammatory response in fish after exposure to environmentally relevant concentrations. Bacterial lipopolysaccharide (LPS) challenge was used to induce inflammation and thus mimic pathogen infection. Zebrafish embryos were exposed to ≤1000nM CP from ~1h post fertilization (hpf) to 96 hpf, and CP uptake, survival after LPS challenge, and expression of inflammation-related genes were examined. Our initial experiments were carried out using 0.001% DMSO as a solvent vehicle, but we observed that DMSO interfered with the LPS challenge assay, and thus masked the effects of CP. Therefore, DMSO was not used in the subsequent experiments. The internal CP concentration was quantifiable after exposure to ≥10nM CP for 96h. The bioconcentration factor (BCF) of CP was determined to be between 16 and 33 in zebrafish embryos. CP-exposed embryos showed a significantly higher survival rate in the LPS challenge assay after exposure to ≥0.1nM in a dose dependent manner. This effect is an indication of immunosuppression. Furthermore, the regulation pattern of several genes related to LPS challenge in mammals supported our results, providing evidence that LPS-mediated inflammatory pathways are conserved from mammals to teleost fish. Anxa1b, a GC-action related anti-inflammatory gene, was significantly down-regulated after exposure to ≥0.05nM CP. Our results show for the first time that synthetic GCs can suppress the innate immune system of fish at environmentally relevant concentrations. This may reduce the chances of fish to survive in the environment, as their defense against pathogens is weakened.
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Affiliation(s)
- Anita O Hidasi
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department of Environmental Toxicology, Dübendorf 8600, Switzerland; EPFL, School of Architecture, Civil and Environmental Engineering, Lausanne 1015, Switzerland
| | - Ksenia J Groh
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department of Environmental Toxicology, Dübendorf 8600, Switzerland
| | - Marc J-F Suter
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department of Environmental Toxicology, Dübendorf 8600, Switzerland; ETHZ, Institute of Biogeochemistry and Pollutant Dynamics, Zürich 8092, Switzerland
| | - Kristin Schirmer
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department of Environmental Toxicology, Dübendorf 8600, Switzerland; EPFL, School of Architecture, Civil and Environmental Engineering, Lausanne 1015, Switzerland; ETHZ, Institute of Biogeochemistry and Pollutant Dynamics, Zürich 8092, Switzerland.
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Vergeynst L, K'oreje K, De Wispelaere P, Harinck L, Van Langenhove H, Demeestere K. Statistical procedures for the determination of linearity, detection limits and measurement uncertainty: A deeper look into SPE-LC-Orbitrap mass spectrometry of pharmaceuticals in wastewater. JOURNAL OF HAZARDOUS MATERIALS 2017; 323:2-10. [PMID: 27339948 DOI: 10.1016/j.jhazmat.2016.05.077] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 05/19/2016] [Accepted: 05/25/2016] [Indexed: 06/06/2023]
Abstract
This research addresses some critical challenges regarding the validation of a quantitative multi-residue method for pharmaceuticals in wastewater making use of modern SPE-LC-Orbitrap high-resolution mass spectrometry. Particular attention is given to study in detail response linearity, to realistically estimate detection limits, and to express the measurement precision of the analyte concentration, obtained by external calibration. First, linearity of the Orbitrap response showed to be matrix dependent in a counter intuitive way: stronger deviations from linearity were observed for pure solvent standards than for complex matrices like wastewater. Second, detection limits risk to be overestimated for ubiquitously present compounds for which true blank matrix samples are hard to find, leading to false negative findings. A novel and easy applicable methodology is presented to allow a better estimation of detection limits using the response of the natural isotopes. Third, a statistical methodology to estimate the measurement precision of the analyte concentration using basic validation parameters is developed specifically for the context of multi-residue quantification.
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Affiliation(s)
- Leendert Vergeynst
- Research Group Environmental Organic Chemistry and Technology (EnVOC), Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Kenneth K'oreje
- Research Group Environmental Organic Chemistry and Technology (EnVOC), Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Patrick De Wispelaere
- Research Group Environmental Organic Chemistry and Technology (EnVOC), Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Lies Harinck
- Research Group Environmental Organic Chemistry and Technology (EnVOC), Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Herman Van Langenhove
- Research Group Environmental Organic Chemistry and Technology (EnVOC), Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Kristof Demeestere
- Research Group Environmental Organic Chemistry and Technology (EnVOC), Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium.
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Núñez M, Borrull F, Fontanals N, Pocurull E. Different sample treatments for the determination of ICM-XR in fish samples followed by LC-HRMS. Talanta 2017; 163:1-7. [DOI: 10.1016/j.talanta.2016.11.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 10/30/2016] [Accepted: 11/02/2016] [Indexed: 11/26/2022]
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Núñez M, Borrull F, Pocurull E, Fontanals N. Pressurised liquid extraction and liquid chromatography-high resolution mass spectrometry to determine high-intensity sweeteners in fish samples. J Chromatogr A 2016; 1479:32-39. [PMID: 27986290 DOI: 10.1016/j.chroma.2016.12.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Revised: 11/21/2016] [Accepted: 12/05/2016] [Indexed: 01/31/2023]
Abstract
An analytical method based on pressurised liquid extraction (PLE) followed by liquid chromatography-high resolution mass spectrometry (Orbitrap) was developed for the simultaneous determination of ten high-intensity sweeteners in fish samples. As the method was developed, the different PLE parameters were optimised and different clean-up strategies were evaluated, of which in-cell clean-up using alumina and on-cell clean-up with hexane were the most effective. PLE recoveries were between 43% and 94%. The method quantification limits were between 12.5ngg-1 dry weight (d.w.) and 250ngg-1 (d.w.) and the method detection limits between 2.5ngg-1 (d.w.) and 125ngg-1 (d.w.). Intra-day precision and inter-day precision were below 16% and 25%, respectively. Fish samples from different species were analysed and, saccharin was found below its method quantification limit in the species Scomber scombrus (Atlantic mackerel).
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Affiliation(s)
- Mireia Núñez
- Department of Analytical Chemistry and Organic Chemistry, Universitat Rovira i Virgili, Sescelades Campus, Marcel·lí Domingo s/n, 43007 Tarragona, Spain
| | - Francesc Borrull
- Department of Analytical Chemistry and Organic Chemistry, Universitat Rovira i Virgili, Sescelades Campus, Marcel·lí Domingo s/n, 43007 Tarragona, Spain
| | - Eva Pocurull
- Department of Analytical Chemistry and Organic Chemistry, Universitat Rovira i Virgili, Sescelades Campus, Marcel·lí Domingo s/n, 43007 Tarragona, Spain.
| | - Núria Fontanals
- Department of Analytical Chemistry and Organic Chemistry, Universitat Rovira i Virgili, Sescelades Campus, Marcel·lí Domingo s/n, 43007 Tarragona, Spain
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38
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Loos G, Van Schepdael A, Cabooter D. Quantitative mass spectrometry methods for pharmaceutical analysis. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2016; 374:20150366. [PMID: 27644982 PMCID: PMC5031633 DOI: 10.1098/rsta.2015.0366] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/25/2016] [Indexed: 05/04/2023]
Abstract
Quantitative pharmaceutical analysis is nowadays frequently executed using mass spectrometry. Electrospray ionization coupled to a (hybrid) triple quadrupole mass spectrometer is generally used in combination with solid-phase extraction and liquid chromatography. Furthermore, isotopically labelled standards are often used to correct for ion suppression. The challenges in producing sensitive but reliable quantitative data depend on the instrumentation, sample preparation and hyphenated techniques. In this contribution, different approaches to enhance the ionization efficiencies using modified source geometries and improved ion guidance are provided. Furthermore, possibilities to minimize, assess and correct for matrix interferences caused by co-eluting substances are described. With the focus on pharmaceuticals in the environment and bioanalysis, different separation techniques, trends in liquid chromatography and sample preparation methods to minimize matrix effects and increase sensitivity are discussed. Although highly sensitive methods are generally aimed for to provide automated multi-residue analysis, (less sensitive) miniaturized set-ups have a great potential due to their ability for in-field usage.This article is part of the themed issue 'Quantitative mass spectrometry'.
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Affiliation(s)
- Glenn Loos
- KU Leuven, Department of Pharmaceutical and Pharmacological Sciences, Pharmaceutical Analysis, Herestraat 49, 3000 Leuven, Belgium
| | - Ann Van Schepdael
- KU Leuven, Department of Pharmaceutical and Pharmacological Sciences, Pharmaceutical Analysis, Herestraat 49, 3000 Leuven, Belgium
| | - Deirdre Cabooter
- KU Leuven, Department of Pharmaceutical and Pharmacological Sciences, Pharmaceutical Analysis, Herestraat 49, 3000 Leuven, Belgium
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Quantitative performance of a quadrupole-orbitrap-MS in targeted LC–MS determinations of small molecules. J Pharm Biomed Anal 2016; 124:48-56. [DOI: 10.1016/j.jpba.2016.02.025] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 02/15/2016] [Accepted: 02/17/2016] [Indexed: 11/23/2022]
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Leendert V, Van Langenhove H, Demeestere K. Trends in liquid chromatography coupled to high-resolution mass spectrometry for multi-residue analysis of organic micropollutants in aquatic environments. Trends Analyt Chem 2015. [DOI: 10.1016/j.trac.2015.01.010] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Berendsen BJA, Wegh RS, Meijer T, Nielen MWF. The assessment of selectivity in different Quadrupole-Orbitrap mass spectrometry acquisition modes. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2015; 26:337-346. [PMID: 25391727 DOI: 10.1007/s13361-014-1021-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 10/10/2014] [Accepted: 10/13/2014] [Indexed: 06/04/2023]
Abstract
Selectivity of the confirmation of identity in liquid chromatography (tandem) mass spectrometry using Q-Orbitrap instrumentation was assessed using different acquisition modes based on a representative experimental data set constructed from 108 samples, including six different matrix extracts and containing over 100 analytes each. Single stage full scan, all ion fragmentation, and product ion scanning were applied. By generating reconstructed ion chromatograms using unit mass window in targeted MS(2), selected reaction monitoring (SRM), regularly applied using triple-quadrupole instruments, was mimicked. This facilitated the comparison of single stage full scan, all ion fragmentation, (mimicked) SRM, and product ion scanning applying a mass window down to 1 ppm. Single factor Analysis of Variance was carried out on the variance (s(2)) of the mass error to determine which factors and interactions are significant parameters with respect to selectivity. We conclude that selectivity is related to the target compound (mainly the mass defect), the matrix, sample clean-up, concentration, and mass resolution. Selectivity of the different instrumental configurations was quantified by counting the number of interfering peaks observed in the chromatograms. We conclude that precursor ion selection significantly contributes to selectivity: monitoring of a single product ion at high mass accuracy with a 1 Da precursor ion window proved to be equally selective or better to monitoring two transition products in mimicked SRM. In contrast, monitoring a single fragment in all ion fragmentation mode results in significantly lower selectivity versus mimicked SRM. After a thorough inter-laboratory evaluation study, the results of this study can be used for a critical reassessment of the current identification points system and contribute to the next generation of evidence-based and robust performance criteria in residue analysis and sports doping.
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Affiliation(s)
- Bjorn J A Berendsen
- RIKILT, Wageningen UR, Akkermaalsbos 2, 6708WB, P.O. Box 230, 6700AE, Wageningen, The Netherlands,
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Introduction of a routine quan/qual approach into research DMPK: experiences and evolving strategies. Bioanalysis 2014; 6:3337-48. [DOI: 10.4155/bio.14.233] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
After graduating with an Oceanography degree from Swansea University, Lloyd has spent over 20 years in the field of bioanalysis and metabolite profiling. He started his career in large pharma at Wyeth UK, where he was involved in setting up the first GC and LC–MS/MS systems for both QC and early DMPK assays, employing EI/CI, thermospray, and the then new electrospray ionization techniques. Lloyd then joined Celltech, now UCB, where he is primarily tasked with metabolite profiling by LC–MS and NMR to support both early research projects and late-stage clinical studies. The application of liquid chromatography high-resolution mass spectrometry for simultaneous quantitative and qualitative (quan/qual) analysis has gained momentum across a range of different scientific arenas in recent years. The ability to acquire high quality quantitative data, whilst also capturing qualitative data for either parallel or retrospective analysis, is a powerful resource, especially in view of ever-reducing cycle times, laboratory space and budgets. The quan/qual approach employing a Q-Exactive™ Orbitrap high-resolution mass spectrometer has been successfully introduced into UCB's research DMPK department. This article describes our experiences in introducing quan/qual, issues that we discovered in establishing this new working paradigm, the evolution of the strategy and its future potential.
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