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Wu X, Yang SA, Kan Y, Li M, Dong J, Qiu T, Gu Y, Zhao Y, Liang D. Revealing Metabolic Dysregulation Induced by Polypropylene Nano- and Microplastics in Nile Tilapia via Noninvasive Probing Epidermal Mucus. Anal Chem 2024. [PMID: 38809415 DOI: 10.1021/acs.analchem.4c00351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
A noninvasive sampling technology was conceived, employing a disposable acupuncture needle in conjunction with high-resolution mass spectrometry (termed as noninvasive direct sampling extractive electrospray ionization mass spectrometry, NIDS-EESI-MS) to scrutinize the epidermal mucus of Nile tilapia for insights into the metabolic dysregulation induced by polypropylene nano- and microplastics. This analytical method initiates with the dispensing of an extraction solvent onto the needles coated with the mucus sample, almost simultaneously applying a high voltage to generate analyte ions. This innovative strategy obliterates the necessitation for laborious sample preparation, thereby simplifying the sampling process. Employing this technique facilitated the delineation of a plethora of metabolites, encompassing, but not confined to, amino acids, peptides, carbohydrates, ketones, fatty acids, and their derivatives. Follow-up pathway enrichment analysis exposed notable alterations within key metabolic pathways, including the biosynthesis of phenylalanine, tyrosine, and tryptophan, lysine degradation, as well as the biosynthesis and metabolism of valine, leucine, and isoleucine pathways in Nile tilapia, consequent to increased concentrations of polypropylene nanoplastics. These metabolic alterations portend potential implications such as immune suppression, among other deleterious outcomes. This trailblazing application of this methodology not only spares aquatic life from sacrifice but also inaugurates an ethical paradigm for conducting longitudinal studies on the same organisms, facilitating detailed investigations into the long-term effects of environmental pollutants. This technique enhances the ability to observe and understand the subtle yet significant impacts of such contaminants over time.
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Affiliation(s)
- Xiaokang Wu
- Key Laboratory of Groundwater Resources and Environment of Ministry of Education, College of New Energy and Environment, Jilin University, Changchun 130012, PR China
| | - Sheng-Ao Yang
- Key Laboratory of Groundwater Resources and Environment of Ministry of Education, College of New Energy and Environment, Jilin University, Changchun 130012, PR China
| | - Ying Kan
- Division of Chemical Metrology and Analytical Science, National Institute of Metrology, Beijing 100029, PR China
| | - Ming Li
- Division of Chemical Metrology and Analytical Science, National Institute of Metrology, Beijing 100029, PR China
| | - Jiaxin Dong
- Key Laboratory of Groundwater Resources and Environment of Ministry of Education, College of New Energy and Environment, Jilin University, Changchun 130012, PR China
| | - Tao Qiu
- Key Laboratory of Groundwater Resources and Environment of Ministry of Education, College of New Energy and Environment, Jilin University, Changchun 130012, PR China
| | - Yu Gu
- Key Laboratory of Groundwater Resources and Environment of Ministry of Education, College of New Energy and Environment, Jilin University, Changchun 130012, PR China
| | - Yuanxin Zhao
- Key Laboratory of Groundwater Resources and Environment of Ministry of Education, College of New Energy and Environment, Jilin University, Changchun 130012, PR China
| | - Dapeng Liang
- Key Laboratory of Groundwater Resources and Environment of Ministry of Education, College of New Energy and Environment, Jilin University, Changchun 130012, PR China
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2
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Li K, Syue P, Lien C, Ku K. Simultaneous analysis of 16 metal ions by ion‐
pairing
high‐performance liquid chromatography‐electrospray ionization tandem mass spectrometry. J CHIN CHEM SOC-TAIP 2022. [DOI: 10.1002/jccs.202200303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kuok‐Fai Li
- Department of Applied Chemistry National Chiayi University Chiayi City Taiwan
| | - Pai‐Chi Syue
- Department of Applied Chemistry National Chiayi University Chiayi City Taiwan
| | - Ching‐Yi Lien
- Department of Applied Chemistry National Chiayi University Chiayi City Taiwan
| | - Kuo‐Lung Ku
- Department of Applied Chemistry National Chiayi University Chiayi City Taiwan
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3
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Xue A, Liu Y, Li H, Cui M, Huang X, Wang W, Wu D, Guo X, Hao Y, Luo L. Early detection of Huanglongbing with EESI-MS indicates a role of phenylpropanoid pathway in citrus. Anal Biochem 2021; 639:114511. [PMID: 34883070 DOI: 10.1016/j.ab.2021.114511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/15/2021] [Accepted: 12/01/2021] [Indexed: 12/22/2022]
Abstract
Huanglongbing (HLB), a devastating disease for citrus worldwide, is caused by Candidatus Liberibacter asiaticus (CLas). In this study, we employed a novel extractive electrospray ionization-mass spectrometry (EESI-MS) method to analyze the metabolites in leaves of uninfected and HLB-infected Newhall navel orange. The results showed that uninfected and HLB-infected leaves could be readily distinguished based on EESI-MS combined by multivariable analysis. Nine phenolic compounds involved in phenylpropanoid pathway, such as p-coumaric acid, naringin, and apigenin, were principal components to distinguish the leaves of uninfected and HLB-infected Newhall navel orange. Gene expression was also conducted to further explore the molecular mechanism of phenylpropanoid branch pathway in HLB. The expression of genes (4CL, HCT, CHI, CHS, CYP, and C12R) involved in phenylpropanoid branch pathway was increased in asymptomatic and early period of HLB-infected leaves, while decreased in later period of HLB-infected leaves. This study provides a novel method for early detection of citrus HLB and suggests the regulation mechanism of phenylpropanoid pathway in the interaction between citrus and CLas.
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Affiliation(s)
- Ahui Xue
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Yongquan Liu
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Haoxing Li
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Meng Cui
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Xueyong Huang
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Wenjing Wang
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Dong Wu
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Xiali Guo
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Yingbin Hao
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
| | - Liping Luo
- School of Life Sciences, Nanchang University, Nanchang, 330031, China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, China.
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4
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Lei M, Jia Y, Zhang W, Xie J, Xu Z, Wang Y, Du W, Liu W. Ultrasensitive and Selective Detection of Uranium by a Luminescent Terbium-Organic Framework. ACS APPLIED MATERIALS & INTERFACES 2021; 13:51086-51094. [PMID: 34694793 DOI: 10.1021/acsami.1c16742] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Detection and remediation of radioactive components have become the focus of worldwide research interest due to the ever-increasing generation of nuclear waste and the concerns on nuclear accidents. Among the numerous radionuclides, uranium and its isotopes receive the most attention because of their high proportion in nuclear waste and long half-life. Herein, a highly luminescent terbium-organic framework, formulated as [Tb4(C29O8H17)2(NO3)4(DMF)4(H2O)4]·4H2O·8.5DMF (YTU-100), with exceptional sensitivity and selectivity toward uranium was successfully prepared. The material exhibits fast adsorption kinetics and moderate sorption capacity. Interestingly, the luminescence intensity variation highly correlates to the amount of adsorbed uranium, which results in a quantitative, accurate, and selective uranium detection manner. The detection limits in deionized water and tap water were determined to be 1.07 and 0.75 ppb, respectively, which are lower than the US Environmental Protection Agency standard of the maximum contamination of uranium in drinking water. YTU-100 offers an alternative approach for building multifunctional MOFs used for simultaneous detection and removal of uranium from aqueous solutions.
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Affiliation(s)
- Min Lei
- School of Environmental and Material Engineering, Yantai University, Yantai 264005, China
| | - Yuyu Jia
- School of Environmental and Material Engineering, Yantai University, Yantai 264005, China
| | - Wei Zhang
- School of Environmental and Material Engineering, Yantai University, Yantai 264005, China
| | - Jian Xie
- School of Life Science, Shaoxing University, Huancheng West Road 508, Shaoxing 312000, China
| | - Zhijun Xu
- School of Environmental and Material Engineering, Yantai University, Yantai 264005, China
| | - Yanlong Wang
- School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
| | - Wei Du
- School of Environmental and Material Engineering, Yantai University, Yantai 264005, China
| | - Wei Liu
- School of Environmental and Material Engineering, Yantai University, Yantai 264005, China
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5
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Mannion DR, Mannion JM, Kuhne WW, Wellons MS. Matrix-Assisted Ionization of Molecular Uranium Species. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2021; 32:8-13. [PMID: 33253565 DOI: 10.1021/jasms.0c00305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Matrix-assisted ionization (MAI) demonstrates high sensitivity for a variety of organic compounds; however, few studies have reported the application of MAI for the detection and characterization of inorganic analytes. Trace-level uranium analysis is important in the realms of nuclear forensics, nuclear safeguards, and environmental monitoring. Traditional mass spectrometry methods employed in these fields require combinations of extensive laboratory chemistry sample preparation and destructive ionization methods. There has been recent interest in exploring ambient mass spectrometry methods that enable timely sample analysis and higher sensitivity than what is attainable by field-portable radiation detectors. Rapid characterization of uranium at nanogram levels is demonstrated in this study using MAI techniques. Mass spectra were collected on an atmospheric pressure mass spectrometer for solutions of uranyl nitrate, uranyl chloride, uranyl acetate, and uranyl oxalate utilizing 3-nibrobenzonitrile as the ionization matrix. The uranyl complexes investigated were detectable, and the chemical speciation was preserved. Sample analysis was accomplished in a matter of seconds, and limits of detection of 5 ng of uranyl nitrate, 10 ng of uranyl oxalate, 100 ng of uranyl chloride, and 200 ng of uranyl acetate were achieved. The observed gas-phase speciation was similar to negative-ion electrospray ionization of uranyl compounds with notable differences. Six matrix-derived ions were detected in all negative-ion mass spectra, and some of these ions formed adducts with the uranyl analyte. Subsequent analysis of the matrix suggests that these molecules are not matrix contaminants and are instead created during the ionization process.
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Affiliation(s)
- Danielle R Mannion
- Savannah River National Laboratory, Aiken, South Carolina 29803, United States
| | - Joseph M Mannion
- Savannah River National Laboratory, Aiken, South Carolina 29803, United States
| | - Wendy W Kuhne
- Savannah River National Laboratory, Aiken, South Carolina 29803, United States
| | - Matthew S Wellons
- Savannah River National Laboratory, Aiken, South Carolina 29803, United States
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Gao Y, Xue A, Li X, Huang X, Ning F, Zhang X, Liu T, Chen H, Luo L. Analysis of chemical composition of nectars and honeys from Citrus by extractive electrospray ionization high resolution mass spectrometry. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109748] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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7
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Qiu ZD, Chen JL, Zeng W, Ma Y, Chen T, Tang JF, Lai CJS, Huang LQ. Real-time toxicity prediction of Aconitum stewing system using extractive electrospray ionization mass spectrometry. Acta Pharm Sin B 2020; 10:903-912. [PMID: 32528836 PMCID: PMC7276682 DOI: 10.1016/j.apsb.2019.08.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 08/20/2019] [Accepted: 08/23/2019] [Indexed: 12/16/2022] Open
Abstract
Due to numerous obstacles such as complex matrices, real-time monitoring of complex reaction systems (e.g., medicinal herb stewing system) has always been a challenge though great values for safe and rational use of drugs. Herein, facilitated by the potential ability on the tolerance of complex matrices of extractive electrospray ionization mass spectrometry, a device was established to realize continuous sampling and real-time quantitative analysis of herb stewing system for the first time. A complete analytical strategy, including data acquisition, data mining, and data evaluation was proposed and implemented with overcoming the usual difficulties in real-time mass spectrometry quantification. The complex Fuzi (the lateral root of Aconitum)–meat stewing systems were real-timely monitored in 150 min by qualitative and quantitative analysis of the nine key alkaloids accurately. The results showed that the strategy worked perfectly and the toxicity of the systems were evaluated and predicated accordingly. Stewing with trotters effectively accelerated the detoxification of Fuzi soup and reduced the overall toxicity to 68%, which was recommended to be used practically for treating rheumatic arthritis and enhancing immunity. The established strategy was versatile, simple, and accurate, which would have a wide application prospect in real-time analysis and evaluation of various complex reaction systems.
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8
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Zhang X, Pei M, Wu D, Yang S, Le Z. Real-time monitoring of the reaction between aniline and acetonylacetone using extractive electorspray ionization tandem mass spectrometry. Sci Rep 2019; 9:19279. [PMID: 31848445 PMCID: PMC6917761 DOI: 10.1038/s41598-019-55921-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 12/04/2019] [Indexed: 11/09/2022] Open
Abstract
In this work an on-line monitoring method was developed to study the mechanism of acetic acid catalyzed reaction between aniline and acetonylacetone using extractive electorspray ionization-tandem mass spectrometry (EESI-MS). The signals of reactants, intermediates and various byproducts were continuously detected as a function of reaction time. The chemical assignment of each signal was done via multi-stage collision induced dissociation (CID) analysis, and the reaction mechanism between aniline and acetonylacetone was deduced based on the generated molecular ions and fragment ions. The results indicate that on-line EESI-MS is an effective technique for the real time analysis of chemical reactions. EESI avoids off-line sample pretreatment and provides "soft" ionization, which allows direct analysis of various analytes at molecular level.
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Affiliation(s)
- Xinglei Zhang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, People's Republic of China
| | - Miaorong Pei
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, People's Republic of China
| | - Debo Wu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, People's Republic of China.
| | - Shuiping Yang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, People's Republic of China
| | - Zhanggao Le
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, People's Republic of China
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Lee S, Kim KY, Lim NY, Jung JH, Lee JH, Choi MY, Jung JH. Terpyridine-based complex nanofibers with Eu 3+ as a highly selective chemical probes for UO 22. JOURNAL OF HAZARDOUS MATERIALS 2019; 378:120713. [PMID: 31306904 DOI: 10.1016/j.jhazmat.2019.05.106] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 05/22/2019] [Accepted: 05/30/2019] [Indexed: 06/10/2023]
Abstract
Uranyl is a radioactive, toxic pollutant commonly found in the waste remaining after nuclear fuel reprocessing, and it poses several types of risks to human health; therefore, developing absorbents and chemical probes for this compound is crucial to overcoming these issues. This study examined the sensing abilities of terpyridine-appended benzenetricarboxyamide (T-BTA) as a chromogenic probe for detecting uranyl ions (UO22+). The complex with Eu3+ (1-Eu) spontaneously formed nanostructured fibers in H2O owing to the triamide groups of T-BTA, which induced intermolecular hydrogen-bonding interactions. The strong blue emission of these nanofibers in H2O was quenched upon adding UO22+ but not upon adding any other metal ion. This high selectivity was probably because of the interactions between the nitrigen atoms of the terpyridine moieties of 1 and UO22+. Furthermore, the 1-Eu nanofibers assumed spherical morphologies when UO22+ was added. To develop a convenient UO22+ sensor, an electrospun film incorporating 1-Eu (ESF-1-Eu) was manufactured, and it exhibited high selectivity for UO22+ over a variety of rival metal ions. The plot for luminescence change of ESF-1-Eu vs UO22+ concentrations in seawater samples showed a good linearty. Thus, the ESF-1-Eu shows potential as a useful sensor for detecting and removing UO22+ in H2O.
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Affiliation(s)
- Seonae Lee
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Ka Young Kim
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Na Young Lim
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Jin Hwan Jung
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Ji Ha Lee
- Department of Chemistry and Biochemistry, The University of Kitakyushu, Hibikino, Kitakyushu, 808-0135, Japan.
| | - Myong Yong Choi
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Republic of Korea.
| | - Jong Hwa Jung
- Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Republic of Korea.
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Tatosian I, Bubas A, Iacovino A, Kline S, Metzler L, Van Stipdonk M. Formation and hydrolysis of gas-phase [UO 2 (R)] + : R═CH 3 , CH 2 CH 3 , CH═CH 2 , and C 6 H 5. JOURNAL OF MASS SPECTROMETRY : JMS 2019; 54:780-789. [PMID: 31426122 DOI: 10.1002/jms.4430] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/05/2019] [Accepted: 08/12/2019] [Indexed: 06/10/2023]
Abstract
The goals of the present study were (a) to create positively charged organo-uranyl complexes with general formula [UO2 (R)]+ (eg, R═CH3 and CH2 CH3 ) by decarboxylation of [UO2 (O2 C─R)]+ precursors and (b) to identify the pathways by which the complexes, if formed, dissociate by collisional activation or otherwise react when exposed to gas-phase H2 O. Collision-induced dissociation (CID) of both [UO2 (O2 C─CH3 )]+ and [UO2 (O2 C─CH2 CH3 )]+ causes H+ transfer and elimination of a ketene to leave [UO2 (OH)]+ . However, CID of the alkoxides [UO2 (OCH2 CH3 )]+ and [UO2 (OCH2 CH2 CH3 )]+ produced [UO2 (CH3 )]+ and [UO2 (CH2 CH3 )]+ , respectively. Isolation of [UO2 (CH3 )]+ and [UO2 (CH2 CH3 )]+ for reaction with H2 O caused formation of [UO2 (H2 O)]+ by elimination of ·CH3 and ·CH2 CH3 : Hydrolysis was not observed. CID of the acrylate and benzoate versions of the complexes, [UO2 (O2 C─CH═CH2 )]+ and [UO2 (O2 C─C6 H5 )]+ , caused decarboxylation to leave [UO2 (CH═CH2 )]+ and [UO2 (C6 H5 )]+ , respectively. These organometallic species do react with H2 O to produce [UO2 (OH)]+ , and loss of the respective radicals to leave [UO2 (H2 O)]+ was not detected. Density functional theory calculations suggest that formation of [UO2 (OH)]+ , rather than the hydrated UV O2 + , cation is energetically favored regardless of the precursor ion. However, for the [UO2 (CH3 )]+ and [UO2 (CH2 CH3 )]+ precursors, the transition state energy for proton transfer to generate [UO2 (OH)]+ and the associated neutral alkanes is higher than the path involving direct elimination of the organic neutral to form [UO2 (H2 O)]+ . The situation is reversed for the [UO2 (CH═CH2 )]+ and [UO2 (C6 H5 )]+ precursors: The transition state for proton transfer is lower than the energy required for creation of [UO2 (H2 O)]+ by elimination of CH═CH2 or C6 H5 radical.
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Affiliation(s)
- Irena Tatosian
- Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Ave, Pittsburgh, Pennsylvania, 15282, USA
| | - Amanda Bubas
- Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Ave, Pittsburgh, Pennsylvania, 15282, USA
- Department of Chemistry, University of Utah, 215 1400 E, Salt Lake City, UT, 84112
| | - Anna Iacovino
- Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Ave, Pittsburgh, Pennsylvania, 15282, USA
| | - Susan Kline
- Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Ave, Pittsburgh, Pennsylvania, 15282, USA
| | - Luke Metzler
- Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Ave, Pittsburgh, Pennsylvania, 15282, USA
| | - Michael Van Stipdonk
- Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Ave, Pittsburgh, Pennsylvania, 15282, USA
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Rahman M, Wu D, Chingin K. Direct Analysis of Aqueous Solutions and Untreated Biological Samples Using Nanoelectrospray Ionization Mass Spectrometry with Pipette Tip in Series with High-Ohmic Resistor as Ion Source. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:814-823. [PMID: 30834507 DOI: 10.1007/s13361-019-02142-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 12/28/2018] [Accepted: 01/21/2019] [Indexed: 06/09/2023]
Abstract
Commercially available disposable plastic pipette tip with the inner diameter of ca. 120 μm in series with a high-ohmic resistor (10 GΩ) was adapted as a low-cost alternative ion source for high-throughput nanoelectrospray mass spectrometry (nESI-MS) analysis of a variety of samples, especially aqueous solutions, without sample pretreatment. The use of high-ohmic resistor enabled the formation of stable electrospray of aqueous solutions at ambient conditions. In addition, corona discharge was avoided even with a high voltage applied. Quantitative analysis of vitamin B in water was successfully conducted by tip-ESI. The results exhibited a good linearity (R ˃ 0.9983), a low detection limit (0.25 ng/mL), and a wide dynamic response range (0.25-1000 ng/mL). Our study revealed that tip-ESI not only performed equally well to capillary nESI in terms of flow rate (˂ 100 nL/min), signal sensitivity, and sample consumption, but also offered a number of additional advantages, including better signal duration, tolerance to high analyte concentration (> 100 μg/mL) and high ionizing voltage (up to 6 kV), and obviation of tip clogging and corona discharge. High compatibility of tip-ESI with various kinds of samples (aqueous, viscous, solid, or bulk biological samples) makes it a promising tool for direct MS analysis.
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Affiliation(s)
- Matiur Rahman
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, People's Republic of China
| | - Debo Wu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, People's Republic of China.
| | - Konstantin Chingin
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, People's Republic of China
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12
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Han J, Liu W, Su R, Zhu L, Wu D, Xu J, Liu A, Zhang H, Kou W, Zhang X, Yang S. Coupling of micro-solid-phase extraction and internal extractive electrospray ionization mass spectrometry for ultra-sensitive detection of 1-hydroxypyrene and papaverine in human urine samples. Anal Bioanal Chem 2019; 411:3281-3290. [PMID: 30989270 DOI: 10.1007/s00216-019-01794-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 02/15/2019] [Accepted: 03/20/2019] [Indexed: 01/14/2023]
Abstract
Quantification of ultra-trace analytes in complex biological samples using micro-solid-phase extraction followed by direct detection with internal extractive electrospray ionization mass spectrometry (μSPE-iEESI-MS) was demonstrated. 1-Hydroxypyrene (1-OHP) and papaverine at attomole levels in human raw urine samples were analyzed under negative and positive ion detection mode, respectively. The μSPE was simply prepared by packing a disposable syringe filter with octadecyl carbon chain (C18)-bonded micro silica particles, which were then treated as the "bulk sample" after the analytes were efficiently enriched by the C18 particles. Under the optimized experimental conditions, the analytes were readily eluted by isopropanol/water (80/20, V/V) at a high voltage of ± 4.0 kV, producing analyte ions under ambient conditions. The limit of detection (LOD) was 0.02 pg/L (9.2 amol) for 1-hydroxypyrene and 0.02 pg/L (5.9 amol) for papaverine. The acceptable linearity (R2 > 0.99), signal stability (RSD ≤ 10.7%), spike recoveries (91-95%), and comparable results for real urine samples were also achieved, opening up possibilities for quantitative analysis of trace compounds (at attomole levels) in complex bio-samples. Graphical abstract.
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Affiliation(s)
- Jing Han
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, China.,Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Wei Liu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Rui Su
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Lixue Zhu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Debo Wu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China.
| | - Jiaquan Xu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Aiying Liu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Hua Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Wei Kou
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Xiaoping Zhang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Shuiping Yang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
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Wang S, Yang S, Wu H, Jiang J, Shao L, Ren Y, Li Y, Liang C, Chu M, Wang X. The contribution of photoinduced charge-transfer enhancement to the SERS of uranyl(VI) in a uranyl-Ag 2O complex. Sci Bull (Beijing) 2019; 64:315-320. [PMID: 36659595 DOI: 10.1016/j.scib.2019.01.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 01/09/2019] [Accepted: 01/28/2019] [Indexed: 01/21/2023]
Abstract
Charge-transfer (CT) is an important enhancement mechanism in the field of surface-enhanced Raman scattering (SERS) that typically increases the Raman intensity of molecules by as much as 10-100 times. Herein, a low-cost Ag2O aggregates substrate was prepared via a facile chemical precipitation method, and the calculated CT-based enhancement factor of the uranyl ions adsorbed on it reached as high as 105, a metal-comparable value. The efficient photoinduced CT process from the valence band of Ag2O to the LUMO of uranyl ions under appropriate excitation sources resulted in the repulsion of the axial oxygen atoms of the OUO bond, which enhanced its polarizability, creating a more intense Raman mode. To the best of our knowledge, this study firstly reports such a strong photoinduced CT enhancement of uranyl ions, with concentrations of 10-8 mol L-1 or lower being detected using this Ag2O substrate. Most importantly, this research has shown that the photoinduced CT enhancement also contributes to the SERS of uranyl ions on pure Ag substrates which have often been ascribed to the electromagnetic enhancement in previous studies. In addition, Ag2O can be used to selectively detect uranyl ions without interference from many other molecules or ions because of the energy matching rule of the photoinduced CT process, which was readily available for uranyl detection in the environmental aqueous solution.
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Affiliation(s)
- Shaofei Wang
- Institute of Materials, China Academy of Engineering Physics, Jiangyou 621907, China
| | - Shanli Yang
- Institute of Materials, China Academy of Engineering Physics, Jiangyou 621907, China
| | - Haoxi Wu
- Institute of Materials, China Academy of Engineering Physics, Jiangyou 621907, China
| | - Jiaolai Jiang
- Institute of Materials, China Academy of Engineering Physics, Jiangyou 621907, China
| | - Lang Shao
- Institute of Materials, China Academy of Engineering Physics, Jiangyou 621907, China
| | - Yiming Ren
- Institute of Materials, China Academy of Engineering Physics, Jiangyou 621907, China
| | - Yingru Li
- Institute of Materials, China Academy of Engineering Physics, Jiangyou 621907, China
| | - Chuanhui Liang
- Institute of Materials, China Academy of Engineering Physics, Jiangyou 621907, China
| | - Mingfu Chu
- Institute of Materials, China Academy of Engineering Physics, Jiangyou 621907, China
| | - Xiaolin Wang
- China Academy of Engineering Physics, Mianyang 621900, China.
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14
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Ke M, Zhang H, Ding J, Xiong X, Li F, Chingin K, Kou W, Liu A, Zhu T, Fang X, Chen H. Generating Supercharged Protein Ions for Breath Analysis by Extractive Electrospray Ionization Mass Spectrometry. Anal Chem 2019; 91:3215-3220. [DOI: 10.1021/acs.analchem.8b03114] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mufang Ke
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People’s Republic of China
| | - Hua Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People’s Republic of China
| | - Jianhua Ding
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, People’s Republic of China
| | - Xingchuang Xiong
- National Institute of Metrology, Beijing 100029, People’s Republic of China
| | - Fenglei Li
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, People’s Republic of China
| | - Konstantin Chingin
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, People’s Republic of China
| | - Wei Kou
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People’s Republic of China
| | - Aiying Liu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People’s Republic of China
| | - Tenggao Zhu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, People’s Republic of China
| | - Xiang Fang
- National Institute of Metrology, Beijing 100029, People’s Republic of China
| | - Huanwen Chen
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, People’s Republic of China
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15
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Forbes TP, Szakal C. Considerations for uranium isotope ratio analysis by atmospheric pressure ionization mass spectrometry. Analyst 2018; 144:317-323. [PMID: 30499992 DOI: 10.1039/c8an01716f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The accurate measurement of uranium isotope ratios from trace samples lies at the foundation of achieving nuclear nonproliferation. These challenging measurements necessitate both the continued characterization and evaluation of evolving mass spectrometric technologies as well as the propagation of sound measurement approaches. For the first time in this work, we present the analysis of uranium isotope ratio measurements from discrete liquid injections with an ultra-high-resolution hybrid quadrupole time-of-flight mass spectrometer. Also presented are important measurement considerations for evaluating the performance of this type and other atmospheric pressure and ambient ionization mass spectrometers for uranium isotope analysis. Specifically, as the goal of achieving isotope ratios from as little as a single picogram of solid material is approached, factors such as mass spectral sampling rate, collision induced dissociation (CID) potentials, and mass resolution can dramatically alter the measured isotope ratio as a function of mass loading. We present the ability to accurately measure 235UO2+/238UO2+ down to 10s of picograms of solubilized uranium oxide through a proper consideration of mass spectral parameters while identifying limitations and opportunities for pushing this limit further.
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Affiliation(s)
- Thomas P Forbes
- National Institute of Standards and Technology, Materials Measurement Science Division, Gaithersburg, MD, USA.
| | - Christopher Szakal
- National Institute of Standards and Technology, Materials Measurement Science Division, Gaithersburg, MD, USA.
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Tatosian IJ, Iacovino AC, Van Stipdonk MJ. Collision-induced dissociation of [U VI O 2 (ClO 4 )] + revisited: Production of [U VI O 2 (Cl)] + and subsequent hydrolysis to create [U VI O 2 (OH)] . RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2018; 32:1085-1091. [PMID: 29645301 DOI: 10.1002/rcm.8135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 03/23/2018] [Accepted: 03/26/2018] [Indexed: 06/08/2023]
Abstract
RATIONALE In a previous study [Rapid Commun Mass Spectrom. 2004;18:3028-3034], collision-induced dissociation (CID) of [UVI O2 (ClO4 )]+ appeared to be influenced by the high levels of background H2 O in a quadrupole ion trap. The CID of the same species was re-examined here with the goal of determining whether additional, previously obscured dissociation pathways would be revealed under conditions in which the level of background H2 O was lower. METHODS Water- and methanol-coordinated [UVI O2 (ClO4 )]+ precursor ions were generated by electrospray ionization. Multiple-stage tandem mass spectrometry (MSn ) for CID and ion-molecule reaction (IMR) studies was performed using a linear ion trap mass spectrometer. RESULTS Under conditions of low background H2 O, CID of [UVI O2 (ClO4 )]+ generates [UVI O2 (Cl)]+ , presumably by elimination of two O2 molecules. Using low isolation/reaction times, we found that [UVI O2 (Cl)]+ will undergo an IMR with H2 O to generate [UVI O2 (OH)]+ . CONCLUSIONS With lower levels of background H2 O, CID experiments reveal that the intrinsic dissociation pathway for [UVI O2 (ClO4 )]+ leads to [UVI O2 (Cl)]+ , apparently by loss of two O2 molecules. We propose that the results reported in the earlier CID study reflected a two-step process: initial formation of [UVI O2 (Cl)]+ by CID, followed by a very rapid hydrolysis reaction to leave [UVI O2 (OH)]+ .
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Affiliation(s)
- Irena J Tatosian
- Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Avenue, Pittsburgh, PA, 15282, USA
| | - Anna C Iacovino
- Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Avenue, Pittsburgh, PA, 15282, USA
| | - Michael J Van Stipdonk
- Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Avenue, Pittsburgh, PA, 15282, USA
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Van Stipdonk MJ, Iacovino A, Tatosian I. Influence of Background H 2O on the Collision-Induced Dissociation Products Generated from [UO 2NO 3]<sup/>. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2018; 29:1416-1424. [PMID: 29654536 DOI: 10.1007/s13361-018-1947-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 03/18/2018] [Accepted: 03/18/2018] [Indexed: 06/08/2023]
Abstract
Developing a comprehensive understanding of the reactivity of uranium-containing species remains an important goal in areas ranging from the development of nuclear fuel processing methods to studies of the migration and fate of the element in the environment. Electrospray ionization (ESI) is an effective way to generate gas-phase complexes containing uranium for subsequent studies of intrinsic structure and reactivity. Recent experiments by our group have demonstrated that the relatively low levels of residual H2O in a 2-D, linear ion trap (LIT) make it possible to examine fragmentation pathways and reactions not observed in earlier studies conducted with 3-D ion traps (Van Stipdonk et al. J. Am. Soc. Mass Spectrom. 14, 1205-1214, 2003). In the present study, we revisited the dissociation of complexes composed of uranyl nitrate cation [UVIO2(NO3)]+ coordinated by alcohol ligands (methanol and ethanol) using the 2-D LIT. With relatively low levels of background H2O, collision-induced dissociation (CID) of [UVIO2(NO3)]+ primarily creates [UO2(O2)]+ by the ejection of NO. However, CID (using He as collision gas) of [UVIO2(NO3)]+ creates [UO2(H2O)]+ and UO2+ when the 2-D LIT is used with higher levels of background H2O. Based on the results presented here, we propose that product ion spectrum in the previous experiments was the result of a two-step process: initial formation of [UVIO2(O2)]+ followed by rapid exchange of O2 for H2O by ion-molecule reaction. Our experiments illustrate the impact of residual H2O in ion trap instruments on the product ions generated by CID and provide a more accurate description of the intrinsic dissociation pathway for [UVIO2(NO3)]+. Graphical Abstract ᅟ.
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Affiliation(s)
- Michael J Van Stipdonk
- Department of Chemistry, Duquesne University, 600 Forbes Avenue, Pittsburgh, PA, 15282, USA.
| | - Anna Iacovino
- Department of Chemistry, Duquesne University, 600 Forbes Avenue, Pittsburgh, PA, 15282, USA
| | - Irena Tatosian
- Department of Chemistry, Duquesne University, 600 Forbes Avenue, Pittsburgh, PA, 15282, USA
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18
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Davis AL, Clowers BH. Stabilization of gas-phase uranyl complexes enables rapid speciation using electrospray ionization and ion mobility-mass spectrometry. Talanta 2018; 176:140-150. [DOI: 10.1016/j.talanta.2017.07.090] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 07/27/2017] [Accepted: 07/28/2017] [Indexed: 12/17/2022]
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19
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Multi-channel microfluidic chip coupling with mass spectrometry for simultaneous electro-sprays and extraction. Sci Rep 2017; 7:17389. [PMID: 29234133 PMCID: PMC5727197 DOI: 10.1038/s41598-017-17764-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 11/30/2017] [Indexed: 02/07/2023] Open
Abstract
Considering the advantages and research status of microfluidic chip coupling with mass spectrometry (MS), a microfluidic chip-based multi-channel ionization (MCMCI) for the extraction of untreated compounds in complex matrices without sample pretreatments was developed. Quantitative analysis of human urine spiked with various rhodamine B concentrations was also performed, and good linearity was obtained. Comparing to the macro ionization device, MCMCI significantly improved the integration of ionization source, simplified the operation of such a device, and greatly increased the signal intensity with much lower gas pressure. Comparison of our MCMCI with two and three gas channels indicated that the liquid–liquid extraction process before spraying and after spraying produced similar MS results. Moreover, this MCMCI with three gas channels also implemented simultaneous dual sprays with high DC voltages, the interference of two samples was minor and ion suppression effect was drastically alleviated. Such advantages may easily enable internal calibration for accurate mass measurement. Furthermore, dual extraction can be implemented by integrating such multi-spray configuration, which can improve the extracted signal intensity and sensitivity. These technologies open up new avenues for the application of microfluidic chip coupling with MS.
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20
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Khasanov AF, Kopchuk DS, Kovalev IS, Taniya OS, Giri K, Slepukhin PA, Santra S, Rahman M, Majee A, Charushin VN, Chupakhin ON. Extended cavity pyrene-based iptycenes for the turn-off fluorescence detection of RDX and common nitroaromatic explosives. NEW J CHEM 2017. [DOI: 10.1039/c6nj02956f] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Extended cavity pyrene-based iptycenes were synthesized for the turn-off fluorescence detection of RDX and common nitro-aromatic explosives.
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21
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Perez E, Hanley C, Koehler S, Pestok J, Polonsky N, Van Stipdonk M. Gas Phase Reactions of Ions Derived from Anionic Uranyl Formate and Uranyl Acetate Complexes. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2016; 27:1989-1998. [PMID: 27604237 DOI: 10.1007/s13361-016-1481-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 08/06/2016] [Accepted: 08/08/2016] [Indexed: 05/18/2023]
Abstract
The speciation and reactivity of uranium are topics of sustained interest because of their importance to the development of nuclear fuel processing methods, and a more complete understanding of the factors that govern the mobility and fate of the element in the environment. Tandem mass spectrometry can be used to examine the intrinsic reactivity (i.e., free from influence of solvent and other condensed phase effects) of a wide range of metal ion complexes in a species-specific fashion. Here, electrospray ionization, collision-induced dissociation, and gas-phase ion-molecule reactions were used to create and characterize ions derived from precursors composed of uranyl cation (UVIO22+) coordinated by formate or acetate ligands. Anionic complexes containing UVIO22+ and formate ligands fragment by decarboxylation and elimination of CH2=O, ultimately to produce an oxo-hydride species [UVIO2(O)(H)]-. Cationic species ultimately dissociate to make [UVIO2(OH)]+. Anionic complexes containing acetate ligands exhibit an initial loss of acetyloxyl radical, CH3CO2•, with associated reduction of uranyl to UVO2+. Subsequent CID steps cause elimination of CO2 and CH4, ultimately to produce [UVO2(O)]-. Loss of CH4 occurs by an intra-complex H+ transfer process that leaves UVO2+ coordinated by acetate and acetate enolate ligands. A subsequent dissociation step causes elimination of CH2=C=O to leave [UVO2(O)]-. Elimination of CH4 is also observed as a result of hydrolysis caused by ion-molecule reaction with H2O. The reactions of other anionic species with gas-phase H2O create hydroxyl products, presumably through the elimination of H2. Graphical Abstract ᅟ.
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Affiliation(s)
- Evan Perez
- Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Ave., Pittsburgh, PA, 15282, USA
| | - Cassandra Hanley
- Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Ave., Pittsburgh, PA, 15282, USA
| | - Stephen Koehler
- Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Ave., Pittsburgh, PA, 15282, USA
| | - Jordan Pestok
- Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Ave., Pittsburgh, PA, 15282, USA
- Sto-Rox High School, McKees Rocks, PA, 15136, USA
| | - Nevo Polonsky
- Chemistry Department, Bates College, Lewiston, Maine, 04240, USA
| | - Michael Van Stipdonk
- Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Ave., Pittsburgh, PA, 15282, USA.
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22
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Fang X, Yang S, Chingin K, Zhu L, Zhang X, Zhou Z, Zhao Z. Quantitative Detection of Trace Malachite Green in Aquiculture Water Samples by Extractive Electrospray Ionization Mass Spectrometry. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:E814. [PMID: 27529262 PMCID: PMC4997500 DOI: 10.3390/ijerph13080814] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Revised: 07/24/2016] [Accepted: 08/05/2016] [Indexed: 11/16/2022]
Abstract
Exposure to malachite green (MG) may pose great health risks to humans; thus, it is of prime importance to develop fast and robust methods to quantitatively screen the presence of malachite green in water. Herein the application of extractive electrospray ionization mass spectrometry (EESI-MS) has been extended to the trace detection of MG within lake water and aquiculture water, due to the intensive use of MG as a biocide in fisheries. This method has the advantage of obviating offline liquid-liquid extraction or tedious matrix separation prior to the measurement of malachite green in native aqueous medium. The experimental results indicate that the extrapolated detection limit for MG was ~3.8 μg·L(-1) (S/N = 3) in lake water samples and ~0.5 μg·L(-1) in ultrapure water under optimized experimental conditions. The signal intensity of MG showed good linearity over the concentration range of 10-1000 μg·L(-1). Measurement of practical water samples fortified with MG at 0.01, 0.1 and 1.0 mg·L(-1) gave a good validation of the established calibration curve. The average recoveries and relative standard deviation (RSD) of malachite green in lake water and Carassius carassius fish farm effluent water were 115% (6.64% RSD), 85.4% (9.17% RSD) and 96.0% (7.44% RSD), respectively. Overall, the established EESI-MS/MS method has been demonstrated suitable for sensitive and rapid (<2 min per sample) quantitative detection of malachite green in various aqueous media, indicating its potential for online real-time monitoring of real life samples.
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Affiliation(s)
- Xiaowei Fang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang 330013, China.
| | - Shuiping Yang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang 330013, China.
| | - Konstantin Chingin
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang 330013, China.
| | - Liang Zhu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang 330013, China.
| | - Xinglei Zhang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang 330013, China.
| | - Zhiquan Zhou
- Department of Electronic and Information Engineering, Harbin Institute of Technology, Weihai 264209, China.
| | - Zhanfeng Zhao
- Department of Electronic and Information Engineering, Harbin Institute of Technology, Weihai 264209, China.
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Xiong X, Jiang T, Zhou R, Wang S, Zou W, Zhu Z. Microwave plasma torch mass spectrometry for the direct detection of copper and molybdenum ions in aqueous liquids. JOURNAL OF MASS SPECTROMETRY : JMS 2016; 51:369-377. [PMID: 27194522 DOI: 10.1002/jms.3768] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 03/21/2016] [Accepted: 03/26/2016] [Indexed: 06/05/2023]
Abstract
Microwave plasma torch (MPT) is a simple and low power-consumption ambient ion source. And the MPT Mass spectra of many metal elements usually exhibit some novel features different from their inductively coupled plasma (ICP) mass spectra, which may be helpful for metal element analysis. Here, we presented the results about the MPT mass spectra of copper and molybdenum elements by a linear ion trap mass spectrometer (LTQ). The generated copper or molybdenum contained ions in plasma were characterized further in collision-induced dissociated (CID) experiments. These researches built a novel, direct and sensitive method for the direct analysis of trace levels of copper and molybdenum in aqueous liquids. Quantitative results showed that the limit of detection (LOD) by using MS(2) procedure was estimated to be 0.265 µg/l (ppb) for copper and 0.497 µg/l for molybdenum. The linear dynamics ranges cover at least 2 orders of magnitude and the analysis of a single aqueous sample can be completed in 5-6 min with a reasonable semi-quantitative sense. Two practical aqueous samples, milk and urine, were also analyzed qualitatively with reasonable recovery rates and RSD. These experimental data demonstrated that the MPT MS is able to turn into a promising and hopeful tool in field analysis of copper and molybdenum ions in water and some aqueous media, and can be applied in many fields, such as environmental controlling, hydrogeology, and water quality inspection. Moreover, MPT MS could also be used as the supplement of ICP-MS for the rapid and in-situ analysis of metal ions. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Xiaohong Xiong
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Tao Jiang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Runzhi Zhou
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Shangxian Wang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
| | - Wei Zou
- Department of Infectious Diseases, The 1st Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Zhiqiang Zhu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, China
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Hou J, Chen S, Zhang N, Liu H, Wang J, He Q, Wang J, Xiong S, Nie Z. Organic salt NEDC (N-naphthylethylenediamine dihydrochloride) assisted laser desorption ionization mass spectrometry for identification of metal ions in real samples. Analyst 2015; 139:3469-75. [PMID: 24842842 DOI: 10.1039/c4an00297k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The significance of metals in life and their epidemiological effects necessitate the development of a direct, efficient, and rapid method of analysis. The matrix assisted laser desorption/ionization technique is on the horns of a dilemma of metal analysis as the conventional matrixes have high background in the low mass range. An organic salt, NEDC (N-naphthylethylenediamine dihydrochloride), is applied as a matrix for identification of metal ions in the negative ion mode in the present work. Sixteen metal ions, Ba(2+), Ca(2+), Cd(2+), Ce(3+), Co(2+), Cu(2+), Fe(3+), Hg(2+), K(+), Mg(2+), Mn(2+), Na(+), Ni(2+), Pb(2+), Sn(2+) and Zn(2+), in the form of their chloride-adducted clusters were systematically tested. Mass spectra can provide unambiguous identification through accurate mass-to-charge ratios and characteristic isotope patterns. Compared to ruthenium ICP standard solution, tris(2,2'-bipyridyl)dichlororuthenium(ii) (C30H24N6Cl2Ru) can form organometallic chloride adducts to discriminate from the inorganic ruthenium by this method. After evaluating the sensitivity for Ca, Cu, Mg, Mn, Pb and Zn and plotting their quantitation curves of signal intensity versus concentration, we determined magnesium concentration in lake water quantitatively to be 5.42 mg L(-1) using the standard addition method. There is no significant difference from the result obtained with ICP-OES, 5.8 mg L(-1). Human urine and blood were also detected to ascertain the multi-metal analysis ability of this strategy in complex samples. At last, we explored its applicability to tissue slice and visualized sodium and potassium distribution by mass spectrometry imaging in the normal Kunming mouse brain.
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Affiliation(s)
- Jian Hou
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
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25
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Zhang LX, Manard BT, Powell BA, Marcus RK. Preliminary Assessment of Potential for Metal–Ligand Speciation in Aqueous Solution via the Liquid Sampling–Atmospheric Pressure Glow Discharge (LS-APGD) Ionization Source: Uranyl Acetate. Anal Chem 2015; 87:7218-25. [DOI: 10.1021/acs.analchem.5b01637] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Lynn X. Zhang
- Department
of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
| | - Benjamin T. Manard
- Chemistry−Actinide
Analytical Chemistry, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Brian A. Powell
- Department of Environmental Engineering & Earth Sciences, Clemson University, Clemson, South Carolina 29634, United States
| | - R. Kenneth Marcus
- Department
of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
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26
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Forbes TP. Rapid detection and isotopic measurement of discrete inorganic samples using acoustically actuated droplet ejection and extractive electrospray ionization mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2015; 29:19-28. [PMID: 25462359 DOI: 10.1002/rcm.7074] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 10/07/2014] [Accepted: 10/08/2014] [Indexed: 05/27/2023]
Abstract
RATIONALE The rapid detection, screening, and isotopic signature analysis of inorganics provide invaluable information for a variety of applications including explosive device detection, nuclear forensics, and environmental monitoring. The coupling of ultrasonic nebulization and extractive electrospray ionization (EESI) enabled the mass spectrometric (MS) detection and analysis of inorganics from microliter sample solution aliquots. METHODS Ultrasonic nebulization and acoustic pressure wave focusing within an array of exponential horn structures were utilized for the efficient atomization of discrete liquid samples ranging in volume from 3 μL to 10 μL pipetted aliquots. In conjunction with an electro-flow focusing source for extractive electrospray ionization (EESI), in-source collision-induced dissociation (CID) was utilized to enhance inorganic detection through fragmentation of adducts and reduction in chemical noise from organic compounds. RESULTS The investigated system enhanced detection of the singly charged elemental cation species and provided accurate measurements of isotopic distributions for a number of metal ions. The extent of CID demonstrated the competition between ligand loss from hydrate clusters and charge reduction from the doubly charged to singly charged cations for the alkaline earth metal ions of strontium and barium. Inorganics were also detected from complex matrices, including synthetic fingerprint material and sediment, without detriment to device operation. CONCLUSIONS The described system provides a versatile tool for the rapid detection, speciation, and isotopic identification of inorganic compounds at nanogram to sub-nanogram levels from microliter aliquots. Published in 2014. This article is a U.S. Government work and is in the public domain in the USA.
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Affiliation(s)
- Thomas P Forbes
- National Institute of Standards and Technology, Materials Measurement Science Division, Gaithersburg, MD, USA
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Forbes TP, Sisco E. Mass Spectrometry Detection and Imaging of Inorganic and Organic Explosive Device Signatures Using Desorption Electro-Flow Focusing Ionization. Anal Chem 2014; 86:7788-97. [DOI: 10.1021/ac501718j] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Thomas P. Forbes
- National Institute of Standards and Technology, Materials
Measurement Science Division, Gaithersburg, Maryland 20899, United States
| | - Edward Sisco
- Department
of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
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28
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Reactive extractive electrospray ionization tandem mass spectrometry for sensitive detection of tetrabromobisphenol A derivatives. Anal Chim Acta 2014; 814:49-54. [DOI: 10.1016/j.aca.2014.01.035] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 01/09/2014] [Accepted: 01/10/2014] [Indexed: 11/23/2022]
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Chen H, Luo M, Xiao S, Ouyang Y, Zhou Y, Zhang X. Extractive electrospray ionization mass spectrometry for uranium chemistry studies. Mass Spectrom (Tokyo) 2013; 2:S0021. [PMID: 24349940 DOI: 10.5702/massspectrometry.s0021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 10/23/2012] [Indexed: 11/23/2022] Open
Abstract
Uranium chemistry is of sustainable interest. Breakthroughs in uranium studies make serious impacts in many fields including chemistry, physics, energy and biology, because uranium plays fundamentally important roles in these fields. Substantial progress in uranium studies normally requires development of novel analytical tools. Extractive electrospray ionization mass spectrometry (EESI-MS) is a sensitive technique for trace detection of various analytes in complex matrices without sample pretreatment. EESI-MS shows excellent performance for monitoring uranium species in various samples at trace levels since it tolerates extremely complex matrices. Therefore, EESI-MS is an alternative choice for studying uranium chemistry, especially when it combines ion trap mass spectrometry. In this presentation, three examples of EESI-MS for uranium chemistry studies will be given, illustrating the potential applications of EESI-MS in synthesis chemistry, physical chemistry, and analytical chemistry of uranium. More specifically, case studies on EESI-MS for synthesis and characterization of novel uranium species, and for rapid detection of uranium and its isotope ratios in various samples will be presented. Novel methods based on EESI-MS for screening uranium ores and radioactive iodine-129 will be presented.
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Affiliation(s)
- Huanwen Chen
- East China Institute of Technology, Nanchang, P.R. China
| | - Mingbiao Luo
- East China Institute of Technology, Nanchang, P.R. China
| | - Saijin Xiao
- East China Institute of Technology, Nanchang, P.R. China
| | | | - Yafei Zhou
- East China Institute of Technology, Nanchang, P.R. China
| | - Xinglei Zhang
- East China Institute of Technology, Nanchang, P.R. China
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Evans-Nguyen KM, Quinto A, Hargraves T, Brown H, Speer J, Glatter D. Transmission Mode Desorption Electrospray Ionization (TM-DESI) for Simultaneous Analysis of Potential Inorganic and Organic Components of Radiological Dispersion Devices (RDDs). Anal Chem 2013; 85:11826-34. [DOI: 10.1021/ac402386m] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kenyon M. Evans-Nguyen
- Department
of Chemistry, Biochemistry, and Physics, The University of Tampa, 401 W. Kennedy Boulevard, Tampa, Florida 33606-1490, United States
| | - Amanda Quinto
- Department
of Chemistry, Biochemistry, and Physics, The University of Tampa, 401 W. Kennedy Boulevard, Tampa, Florida 33606-1490, United States
| | - Tiffanie Hargraves
- Department
of Chemistry, Biochemistry, and Physics, The University of Tampa, 401 W. Kennedy Boulevard, Tampa, Florida 33606-1490, United States
| | - Hilary Brown
- Department
of Chemistry, Biochemistry, and Physics, The University of Tampa, 401 W. Kennedy Boulevard, Tampa, Florida 33606-1490, United States
| | - Jennifer Speer
- Department
of Chemistry, Biochemistry, and Physics, The University of Tampa, 401 W. Kennedy Boulevard, Tampa, Florida 33606-1490, United States
| | - David Glatter
- Department
of Chemistry, Biochemistry, and Physics, The University of Tampa, 401 W. Kennedy Boulevard, Tampa, Florida 33606-1490, United States
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31
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Jaison PG, Kumar P, Telmore VM, Aggarwal SK. Electrospray ionization mass spectrometric studies on uranyl complex with α-hydroxyisobutyric acid in water-methanol medium. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2013; 27:1105-1118. [PMID: 23592115 DOI: 10.1002/rcm.6544] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 02/10/2013] [Accepted: 02/12/2013] [Indexed: 06/02/2023]
Abstract
RATIONALE Hydroxycarboxylic acids are extensively used as chelating agents in the liquid chromatographic separation of actinides and lanthanides. They are also used as model compounds to understand the binding characteristics of humic substances. A systematic study of the speciation of uranyl-α-hyydroxyisobutyric acid (HIBA) in water-methanol is essential, as it is important to understand the various mechanisms responsible for the separation of these species in liquid chromatography. METHODS ESI-MS studies were carried out using a tandem quadrupole-time-of-flight mass spectrometer in positive and negative ion mode. The effects of solution composition, solute concentration and supporting electrolyte concentration on the ESI-MS behavior of the uranyl species were studied. Transmission parameters such as the quadrupole ion energy and collision cell energy were optimized for acquiring the spectra of uranyl-HIBA species, ensuring that the spectra reflect the solution equilibrium conditions. RESULTS The solution composition and concentration of the uranyl salt were found to influence the major uncomplexed uranyl species. Although the ESI parameters did not influence the species distribution of uranyl-HIBA, the transmission parameters did have a significant effect. The overall trend in the complexation reaction between uranyl and HIBA was studied as a function of ligand-to-metal ratio. The species distribution obtained in positive ion mode was similar to that obtained in negative ion mode. CONCLUSIONS The study presents the optimization of the mobile phase conditions and the ESI-MS parameters for the speciation of the uranyl-HIBA system. The methodology was applied to obtaining the distribution of complexed and uncomplexed uranyl species for monitoring the trend in the complexation reaction.
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Affiliation(s)
- P G Jaison
- Fuel Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India
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32
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Li M, Ding J, Gu H, Zhang Y, Pan S, Xu N, Chen H, Li H. Facilitated diffusion of acetonitrile revealed by quantitative breath analysis using extractive electrospray ionization mass spectrometry. Sci Rep 2013; 3:1205. [PMID: 23386969 PMCID: PMC3564039 DOI: 10.1038/srep01205] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Accepted: 01/02/2013] [Indexed: 01/16/2023] Open
Abstract
By using silver cations (Ag⁺) as the ionic reagent in reactive extractive electrospray ionization mass spectrometry (EESI-MS), the concentrations of acetonitrile in exhaled breath samples from the volunteers including active smokers, passive smokers, and non-smokers were quantitatively measured in vivo, without any sample pretreatment. A limit of detection (LOD) and relative standard deviation (RSD) were 0.16 ng/L and 3.5% (n = 8), respectively, for the acetonitrile signals in MS/MS experiments. Interestingly, the concentrations of acetonitrile in human breath continuously increased for 1-4 hours after the smoker finished smoking and then slowly decreased to the background level in 7 days. The experimental data of a large number of (> 165) samples indicated that the inhaled acetonitrile is excreted most likely by facilitated diffusion, instead of simple diffusion reported previously for other volatile compounds.
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Affiliation(s)
- Ming Li
- National Institute of Metrology, Beijing 100013, P. R. China
| | - Jianhua Ding
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang 330013, P. R. China
| | - Haiwei Gu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang 330013, P. R. China
| | - Yan Zhang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang 330013, P. R. China
| | - Susu Pan
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang 330013, P. R. China
| | - Ning Xu
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang 330013, P. R. China
| | - Huanwen Chen
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang 330013, P. R. China
| | - Hongmei Li
- National Institute of Metrology, Beijing 100013, P. R. China
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Walther C, Denecke MA. Actinide Colloids and Particles of Environmental Concern. Chem Rev 2013; 113:995-1015. [DOI: 10.1021/cr300343c] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Clemens Walther
- Institute for Radioecology and
Radiation Protection, Leibniz University Hannover, Herrenhäuser Strasse 2, D-30419 Hannover, Germany
| | - Melissa A. Denecke
- Institute for Nuclear Waste
Disposal, Karlsruhe Institute of Technology, P.O. Box 3640, D-76021 Karlsruhe, Germany
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Zhu W, Yuan Y, Zhou P, Zeng L, Wang H, Tang L, Guo B, Chen B. The expanding role of electrospray ionization mass spectrometry for probing reactive intermediates in solution. Molecules 2012; 17:11507-37. [PMID: 23018925 PMCID: PMC6268401 DOI: 10.3390/molecules171011507] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 08/29/2012] [Accepted: 09/05/2012] [Indexed: 12/31/2022] Open
Abstract
Within the past decade, electrospray ionization mass spectrometry (ESI-MS) has rapidly occupied a prominent position for liquid-phase mechanistic studies due to its intrinsic advantages allowing for efficient "fishing" (rapid, sensitive, specific and simultaneous detection/identification) of multiple intermediates and products directly from a "real-world" solution. In this review we attempt to offer a comprehensive overview of the ESI-MS-based methodologies and strategies developed up to date to study reactive species in reaction solutions. A full description of general issues involved with probing reacting species from complex (bio)chemical reaction systems is briefly covered, including the potential sources of reactive intermediate (metabolite) generation, analytical aspects and challenges, basic rudiments of ESI-MS and the state-of-the-art technology. The main purpose of the present review is to highlight the utility of ESI-MS and its expanding role in probing reactive intermediates from various reactions in solution, with special focus on current progress in ESI-MS-based approaches for improving throughput, testing reality and real-time detection by using newly developed MS instruments and emerging ionization sources (such as ambient ESI techniques). In addition, the limitations of modern ESI-MS in detecting intermediates in organic reactions is also discussed.
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Affiliation(s)
- Weitao Zhu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, 36 Lushan Road, Changsha 410081, China; (W.Z.); (P.Z.); (L.Z.); (H.W.); (L.T.); (B.C.)
| | - Yu Yuan
- School of Pharmaceutical Sciences, Central South University, 172 Tongzipo Road, Changsha 410013, China;
| | - Peng Zhou
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, 36 Lushan Road, Changsha 410081, China; (W.Z.); (P.Z.); (L.Z.); (H.W.); (L.T.); (B.C.)
| | - Le Zeng
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, 36 Lushan Road, Changsha 410081, China; (W.Z.); (P.Z.); (L.Z.); (H.W.); (L.T.); (B.C.)
| | - Hua Wang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, 36 Lushan Road, Changsha 410081, China; (W.Z.); (P.Z.); (L.Z.); (H.W.); (L.T.); (B.C.)
| | - Ling Tang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, 36 Lushan Road, Changsha 410081, China; (W.Z.); (P.Z.); (L.Z.); (H.W.); (L.T.); (B.C.)
| | - Bin Guo
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, 36 Lushan Road, Changsha 410081, China; (W.Z.); (P.Z.); (L.Z.); (H.W.); (L.T.); (B.C.)
| | - Bo Chen
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, 36 Lushan Road, Changsha 410081, China; (W.Z.); (P.Z.); (L.Z.); (H.W.); (L.T.); (B.C.)
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35
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Detection of trace levels of lead in aqueous liquids using extractive electrospray ionization tandem mass spectrometry. Talanta 2012; 98:79-85. [DOI: 10.1016/j.talanta.2012.06.048] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Revised: 06/14/2012] [Accepted: 06/20/2012] [Indexed: 11/19/2022]
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36
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Liu C, Ouyang Y, Jia B, Zhu Z, Shi J, Chen H. Lead-enhanced gas-phase stability of multiply charged EDTA anions: a combined experimental and theoretical study. JOURNAL OF MASS SPECTROMETRY : JMS 2012; 47:769-777. [PMID: 22707169 DOI: 10.1002/jms.3014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Besides their fundamental importance, multiply charged anions (MCAs) are considered as promising molecular capacitors for which their intrinsic stabilities are of great significance. Herein, the gas-phase stabilities of ethylenediaminetetraacetic acid (EDTA) anions (i.e. [EDTA-nH](n-), n = 1-4) and their Pb(II) complexes (i.e. [EDTA + Pb-nH]((2-n)-), n = 3, 4) have been investigated using an approach that combines extractive electrospray ionization mass spectrometry (EESI-MS) measurements, Car-Parrinello molecular dynamics simulations and density functional theory/Tao-Perdew-Staroverov-Scuseria calculations. The EESI-MS data showed that the doubly charged EDTA anions in the form of [EDTA-2H](2-) and [EDTA + Pb-4H](2-) were much more abundantly observed than the singly charged species such as [EDTA-H](-) and [EDTA + Pb-3H](-), respectively. The calculation results indicated that [EDTA-2H](2-) and [EDTA + Pb-4H](2-) anions were thermodynamically more stable than the [EDTA-H](-) and [EDTA + Pb-3H](-) species in the gas phase, respectively. The [EDTA + Pb-3H](-) anions preferred five-coordinated structure, whereas [EDTA + Pb-4H](2-) anions formed either five-coordinated or six-coordinated structures. The calculations further revealed that significant electron clouds drifting from the ligand EDTA to the metal Pb(II) ions and the large distances between the carboxylic groups reduced the Coulomb repulsion among the excess electrons of these MCAs. Our data demonstrated that EESI-MS combined with theoretic calculations were able to provide a deep insight into the fundamental behavior of stability of MCAs in the gas phase and, thus, might be useful tools for studying MCAs for potential molecular capacitors.
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Affiliation(s)
- Chunxiao Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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37
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Dodbiba E, Xu C, Wanigasekara E, Armstrong DW. Sensitive analysis of metal cations in positive ion mode electrospray ionization mass spectrometry using commercial chelating agents and cationic ion-pairing reagents. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2012; 26:1005-1013. [PMID: 22467449 DOI: 10.1002/rcm.6185] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Metals play a very important role in many scientific and environmental fields, and thus their detection and analysis is of great necessity. A simple and very sensitive method has been developed herein for the detection of metals in positive ion mode ESI-MS. Metal ions are positively charged, and as such they can potentially be detected in positive ion mode ESI-MS; however, their small mass-to-charge (m/z) ratio makes them fall in the low-mass region of the mass spectrum, which has the largest background noise. Therefore, their detection can become extremely difficult. A better and well-known way to detect metals by ESI-MS is by chelating them with complexation agents. In this study eleven different metals, Fe(II), Fe(III), Mg(II), Cu(II), Ru(III), Co(II), Ca(II), Ni(II), Mn(II), Sn(II), and Ag(I), were paired with two commercially available chelating agents: ethylenediaminetetraacetic acid (EDTA) and ethylenediaminedisuccinic acid (EDDS). Since negative ion mode ESI-MS has many disadvantages compared to positive ion mode ESI-MS, it would be very beneficial if these negatively charged complex ions could be detected in the positive mode. Such a method is described in this paper and it is shown to achieve much lower sensitivities. Each of the negatively charged metal complexes is paired with six cationic ion-pairing reagents. The new positively charged ternary complexes are then analyzed by ESI-MS in the positive single ion monitoring (SIM) and single reaction monitoring (SRM) modes. The results clearly revealed that the presence of the cationic reagents significantly improved the sensitivity for these analytes, often by several orders of magnitude. This novel method developed herein for the detection of metals improved the limits of detection (LODs) significantly when compared to negative ion mode ESI-MS and shows great potential in future trace studies of these and many other species.
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Affiliation(s)
- Edra Dodbiba
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX 76019, USA
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38
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Groenewold GS, Gaumet JJ. Characterization of Ce(3+) -tributyl phosphate coordination complexes produced by fused droplet electrospray ionization with a target capillary. JOURNAL OF MASS SPECTROMETRY : JMS 2011; 46:1273-1280. [PMID: 22223419 DOI: 10.1002/jms.2015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Coordination complexes containing Ce(III) and tri-n-butyl phosphate (TBP) in the 1+, 2+ and 3+ charge states were generated using both direct infusion electrospray ionization (ESI) and fused droplet (FD) ESI using a target capillary, in which the analyte solutions are impinged by the ESI droplets. The same coordination complexes were produced in each experiment, and their relative abundances were also very close, suggesting that similar processes are occurring in both experiments. The ion species formed in both experiments have the general formula [Ce(NO(3) )(m=0-2) (TBP)(n=3-7) ]((3-m)+) . The appearance of abundant 1+ and 2+ ion pair complexes indicated that the ESI process was modifying the ion populations in the original solutions, which contain predominantly 3+ and 2+ species. The FD ESI experiments were less sensitive for coordination complexes compared to direct infusion ESI; however, mid-picomolar quantities of coordination complexes were measured using the target capillary, indicating that sensitivity would be sufficient for measuring species in many industrial separations processes.
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39
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On the mechanism of extractive electrospray ionization (EESI) in the dual-spray configuration. Anal Bioanal Chem 2011; 402:2633-43. [DOI: 10.1007/s00216-011-5471-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Revised: 09/19/2011] [Accepted: 10/03/2011] [Indexed: 10/16/2022]
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40
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McCullough BJ, Bristow T, O'Connor G, Hopley C. On-line reaction monitoring by extractive electrospray ionisation. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2011; 25:1445-1451. [PMID: 21504011 DOI: 10.1002/rcm.5016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The design and development of a novel extractive electrospray ionisation (EESI) device for on-line reaction monitoring is described. The EESI apparatus uses a secondary, grounded nebuliser to produce an analyte aerosol and a Venturi pump is then used to transfer a sample of the aerosol to an electrospray source where it is ionised. The EESI apparatus was then tested with a variety of small, organic molecules to assess sensitivity, linearity and dynamic range. The performance of the technique will depend on the mass spectrometer used for the experiments; in the configurations used here it has a usable dynamic range of around 3.5 orders of magnitude with a linear range of around 2.5 orders of magnitude and is capable of analysing species present down to low µg/mL with signal-to-noise ratio greater than 2.5. The use of EESI for reaction monitoring was validated using a series of mock reaction mixtures and then used to monitor the base hydrolysis of ethyl salicylate to salicylic acid.
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Huang D, Luo L, Jiang C, Han J, Wang J, Zhang T, Jiang J, Zhou Z, Chen H. Sinapine detection in radish taproot using surface desorption atmospheric pressure chemical ionization mass spectrometry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:2148-2156. [PMID: 21332204 DOI: 10.1021/jf103725f] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Plant research and natural product detection are of sustainable interests. Benefited by direct detection with no sample preparation, sinapine, a bioactive chemical usually found in various seeds of Brassica plants, has been unambiguously detected in radish taproot (Raphanus sativus) tissue using a liquid-assisted surface desorption atmospheric pressure chemical ionization mass spectrometry (DAPCI-MS). A methanol aqueous solution (1:1) was nebulized by a nitrogen sheath gas toward the corona discharge, resulting in charged ambient small droplets, which affected the radish tissue for desorption/ionization of analytes on the tissue surface. Thus, sinapine was directly detected and identified by tandem DAPCI-MS experiments without sample pretreatment. The typical relative standard deviation (RSD) of this method for sinapine detection was 5-8% for six measurements (S/N=3). The dynamic response range was 10(-12)-10(-7) g/cm2 for sinapine on the radish skin surface. The discovery of sinapine in radish taproot was validated by using HPLC-UV methods. The data demonstrated that DAPCI assisted by solvent enhanced the overall efficiency of the desorption/ionization process, enabling sensitive detection of bioactive compounds in plant tissue.
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Affiliation(s)
- Dejuan Huang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, College of Chemistry, Biology and Material Science, East China Institute of Technology, Nanchang, Jiangxi Province 330013, People's Republic of China
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CHEN HW, HU B, ZHANG X. Principle and Application of Ambient Mass Spectrometry for Direct Analysis of Complex Samples. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2010. [DOI: 10.1016/s1872-2040(09)60060-8] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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43
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Law WS, Wang R, Hu B, Berchtold C, Meier L, Chen H, Zenobi R. On the Mechanism of Extractive Electrospray Ionization. Anal Chem 2010; 82:4494-500. [DOI: 10.1021/ac100390t] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Wai Siang Law
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich CH-8093, Switzerland, and Department of Applied Chemistry, East China Institute of Technology, Fuzhou 344000, China
| | - Rui Wang
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich CH-8093, Switzerland, and Department of Applied Chemistry, East China Institute of Technology, Fuzhou 344000, China
| | - Bin Hu
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich CH-8093, Switzerland, and Department of Applied Chemistry, East China Institute of Technology, Fuzhou 344000, China
| | - Christian Berchtold
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich CH-8093, Switzerland, and Department of Applied Chemistry, East China Institute of Technology, Fuzhou 344000, China
| | - Lukas Meier
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich CH-8093, Switzerland, and Department of Applied Chemistry, East China Institute of Technology, Fuzhou 344000, China
| | - Huanwen Chen
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich CH-8093, Switzerland, and Department of Applied Chemistry, East China Institute of Technology, Fuzhou 344000, China
| | - Renato Zenobi
- Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich CH-8093, Switzerland, and Department of Applied Chemistry, East China Institute of Technology, Fuzhou 344000, China
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