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Pinheiro KMP, Sako AVF, Rodrigues MF, Vaz BG, Medeiros Junior I, Carvalho RM, Coltro WKT. Analysis of naphthenic acids in produced water samples by capillary electrophoresis-mass spectrometry. J Sep Sci 2023; 46:e2300442. [PMID: 37582647 DOI: 10.1002/jssc.202300442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/17/2023]
Abstract
A capillary electrophoresis-mass spectrometry method was used to analyze naphthenic acids in produced water samples. It was possible to detect cyclopentanecarboxylic, benzoic, cyclohexanebutyric, 1-naphthoic, decanoic, 3,5-dimethyladamantane-1-carboxylic, 9-anthracenecarboxylic, and pentadecanoic acids within ca. 13 min using a buffer composed of 40 mmol/L ammonium hydroxide, 32 mmol/L acetic acid and 20% v/v isopropyl alcohol, pH 8.6. The proposed method showed good repeatability, with relative standard deviation (RSD) values of 6.6% for the sum of the peak areas and less than 2% for the analysis time. In the interday analysis, the RSD values for the sum of the peak areas and migration time were 10.3% and 10%, respectively. The developed method demonstrated linear behavior in the concentration range between 5 and 50 mg/L for benzoic, decanoic, 3,5-dimethyladamantane-1-carboxylic and 9-anthracenecarboxylic acids, and between 10 and 50 mg/L for cyclopentanecarboxylic, cyclohexanebutyric, 1- naphthoic, and pentadecanoic acids. The detection limits values ranged from 0.31 to 1.64 mg/L. Six produced water samples were analyzed and it was possible to identify and quantify cyclopentanecarboxylic, benzoic, cyclohexanebutyric, and decanoic acids. The concentrations varied between 4.8 and 98.9 mg/L, proving effective in the application of complex samples.
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Affiliation(s)
| | - Alysson V F Sako
- Instituto de Química, Universidade Federal da Santa Catarina, Florianópolis, Brazil
| | | | - Boniek G Vaz
- Instituto de Química, Universidade Federal de Goiás, Goiânia, Brazil
| | - Iris Medeiros Junior
- Centro de Pesquisas e Desenvolvimento Leopoldo Américo Miguez de Mello (CENPES), Rio de Janeiro, Brazil
| | - Rogerio M Carvalho
- Centro de Pesquisas e Desenvolvimento Leopoldo Américo Miguez de Mello (CENPES), Rio de Janeiro, Brazil
| | - Wendell K T Coltro
- Instituto de Química, Universidade Federal de Goiás, Goiânia, Brazil
- Instituto Nacional de Ciência e Tecnologia de Bioanalítica, Campinas, Brazil
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2
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Kumar S, Baggi TR. Analytical Methods for Herbal Products Containing Synthetic Cannabinoids: A Review. Forensic Chem 2022. [DOI: 10.1016/j.forc.2021.100396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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3
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Simultaneous Separation and Analysis of Five Compounds in Cibotium barometz by Micellar Electrokinetic Chromatography with Large-Volume Sample Stacking. SEPARATIONS 2021. [DOI: 10.3390/separations8090147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A large volume sample stacking (LVSS) method in micellar electrokinetic chromatography (MEKC) with diode array detector was developed for the simultaneous separation and analysis of five compounds: protocatechuic acid, protocatechuic aldehyde, caffeic acid, syringetin and vanillin in Cibotium barometz. The electrophoretic separation was performed in a 10 mM sodium dodecyl sulfate (SDS) and 50 mM sodium borax-sodium dihydrogen phosphate system (pH = 8.5) with 10% methanol at a separation voltage of 30 kV after optimizing the typical parameters. The detection limits were from 32 pg to 65 pg, which were around 12–27 times lower than MEKC, and 500 times less than reported methods. Finally, the established method was validated to be applicable for the determination of protocatechuic acid and caffeic acid in Cibotium barometz. This proposed method is expected to facilitate the quality control of Cibotium barometz.
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4
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Hamidi S. Recent Progresses in Sensitive Determination of Drugs of Abuse by Capillary Electrophoresis. CURR ANAL CHEM 2020. [DOI: 10.2174/1573411015666190115153531] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Today, “drugs of abuse” pose serious social problems such as many crimes,
medical treatment costs, and economic repercussions. Several worldwide clinical laboratories use analytical
separation methods to analyze their patient samples for drugs and poisons. In this way, they
provide qualitative and quantitative data on the substances in various biological matrices (e.g., urine,
plasma or serum, saliva, and breath).
Methods:
An extensive review of the published articles indicates that the use of Capillary Electrophoresis
(CE) coupled with sensitivity enhancing methods is a very attractive area of interest in the
assay of drugs of abuse.
Results:
This review was prepared to have a comprehensive study on applications of sensitivity enhancing
methods on the determination of drugs of abuse especially from 2007 to present. The sample
preconcentration approaches almost address all methods from online preconcentration (both electrophoretic
and chromatographic-based methods) to offline preconcentration. Furthermore, detection
system modification and capillary column fabrications were investigated in order to increase the detection
sensitivity of complex samples in CE.
Conclusion:
The present review summarizes the most recent developments in the detection of drugs
of abuse using CE. Although CE still has a limitation in sensitive detection, several publications in
recent years have proposed valuable methods to overcome this problem.
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Affiliation(s)
- Samin Hamidi
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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5
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Morozov SV, Tkacheva NI, Tkachev AV. On Problems of the Comprehensive Chemical Profiling of Medicinal Plants. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1068162019070070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Recent advances in capillary electrophoretic migration techniques for pharmaceutical analysis (2013-2015). Electrophoresis 2016; 37:1591-608. [DOI: 10.1002/elps.201600058] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 03/04/2016] [Accepted: 03/04/2016] [Indexed: 11/07/2022]
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7
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Cyclodextrin-modified MEKC method for quantification of selected acidic metabolites of catecholamines in the presence of various biogenic amines. Application to diagnosis of neuroblastoma. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 1003:27-34. [DOI: 10.1016/j.jchromb.2015.09.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 09/01/2015] [Accepted: 09/04/2015] [Indexed: 11/19/2022]
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8
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Xu Y, Ling BZ, Zhu WJ, Yao D, Zhang L, Wang Y, Yan C. Development of fully automated quantitative capillary electrophoresis with high accuracy and repeatability. Biomed Chromatogr 2015; 30:390-5. [DOI: 10.1002/bmc.3560] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 06/22/2015] [Accepted: 07/06/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Yuan Xu
- School of Pharmacy; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Bang-zan Ling
- School of Pharmacy; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Wen-jun Zhu
- School of Pharmacy; Shanghai Jiao Tong University; Shanghai 200240 China
- Unimicro (Shanghai) Technologies; Pudong Shanghai 201203 China
| | - Dong Yao
- Unimicro (Shanghai) Technologies; Pudong Shanghai 201203 China
| | - Lin Zhang
- School of Pharmacy; Shanghai Jiao Tong University; Shanghai 200240 China
- Unimicro (Shanghai) Technologies; Pudong Shanghai 201203 China
| | - Yan Wang
- School of Pharmacy; Shanghai Jiao Tong University; Shanghai 200240 China
| | - Chao Yan
- School of Pharmacy; Shanghai Jiao Tong University; Shanghai 200240 China
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9
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Kartsova LA, Bessonova EA. Biomedical applications of capillary electrophoresis. RUSSIAN CHEMICAL REVIEWS 2015. [DOI: 10.1070/rcr4492] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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10
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Capriotti AL, Cavaliere C, Foglia P, Piovesana S, Ventura S. Chromatographic Methods Coupled to Mass Spectrometry Detection for the Determination of Phenolic Acids in Plants and Fruits. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2014.941263] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | - Chiara Cavaliere
- a Dipartimento di Chimica , Università di Roma “La Sapienza” , Rome , Italy
| | - Patrizia Foglia
- a Dipartimento di Chimica , Università di Roma “La Sapienza” , Rome , Italy
| | - Susy Piovesana
- a Dipartimento di Chimica , Università di Roma “La Sapienza” , Rome , Italy
| | - Salvatore Ventura
- a Dipartimento di Chimica , Università di Roma “La Sapienza” , Rome , Italy
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11
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Du F, Cao S, Fung YS. A serial dual-electrode detector based on electrogenerated bromine for capillary electrophoresis. Electrophoresis 2014; 35:3556-63. [DOI: 10.1002/elps.201400257] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2014] [Revised: 08/30/2014] [Accepted: 08/30/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Fuying Du
- Department of Water Quality Engineering, School of Power and Mechanical Engineering; Wuhan University; Wuhan China
- Department of Chemistry; The University of Hong Kong; Hong Kong SAR China
| | - Shunan Cao
- Department of Water Quality Engineering, School of Power and Mechanical Engineering; Wuhan University; Wuhan China
| | - Ying-Sing Fung
- Department of Chemistry; The University of Hong Kong; Hong Kong SAR China
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12
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Zhao J, Hu DJ, Lao K, Yang ZM, Li SP. Advance of CE and CEC in phytochemical analysis (2012–2013). Electrophoresis 2014; 35:205-24. [PMID: 24114928 DOI: 10.1002/elps.201300321] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Revised: 09/17/2013] [Accepted: 09/17/2013] [Indexed: 12/11/2022]
Abstract
This article presents an overview of the advance of CE and CEC in phytochemical analysis, based on the literature not mentioned in our previous review papers [Chen, X. J., Zhao, J., Wang, Y. T., Huang, L. Q., Li, S. P., Electrophoresis 2012, 33, 168–179], mainly covering the years 2012–2013. In this article, attention is paid to online preconcentration, rapid separation, and sensitive detection. Selected examples illustrate the applicability of CE and CEC in biomedical, pharmaceutical, environmental, and food analysis. Finally, some general conclusions and future perspectives are given.
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13
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Deeb SE, Wätzig H, El-Hady DA, Albishri HM, de Griend CSV, Scriba GKE. Recent advances in capillary electrophoretic migration techniques for pharmaceutical analysis. Electrophoresis 2014; 35:170-89. [PMID: 24395663 DOI: 10.1002/elps.201300411] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Revised: 10/04/2013] [Accepted: 10/04/2013] [Indexed: 12/31/2022]
Abstract
Since the introduction about 30 years ago, CE techniques have gained a significant impact in pharmaceutical analysis. The present review covers recent advances and applications of CE for the analysis of pharmaceuticals. Both small molecules and biomolecules such as proteins are considered. The applications range from the determination of drug-related substances to the analysis of counterions and the determination of physicochemical parameters. Furthermore, general considerations of CE methods in pharmaceutical analysis are described.
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Affiliation(s)
- Sami El Deeb
- Drug Analysis and Research Center, Department of Pharmaceutical Chemistry, Al-Azhar University - Gaza, Gaza, Palestine; Institute of Medicinal and Pharmaceutical Chemistry, TU Braunschweig, Braunschweig, Germany
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14
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Liu J, Petersen NJ, Lee KF, Hansen SH, Lao L, Sze C, Zhang Y. Application of temperature-correlated mobility theory for optimizing the MEKC separation of the main lignans from Schisandra Chinensis Fructus and its prescription Yuye Decoction. Electrophoresis 2014; 35:2907-14. [DOI: 10.1002/elps.201400007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 07/02/2014] [Accepted: 07/07/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Jingyi Liu
- School of Chinese Medicine; The University of Hong Kong; Hong Kong P. R. China
- Department of Pharmacy; University of Copenhagen; Copenhagen Denmark
| | | | - Kai-Fai Lee
- Department of Obstetrics and Gynecology; The University of Hong Kong; Hong Kong P. R. China
| | | | - Lixing Lao
- School of Chinese Medicine; The University of Hong Kong; Hong Kong P. R. China
| | - Chowing Sze
- School of Chinese Medicine; The University of Hong Kong; Hong Kong P. R. China
| | - Yanbo Zhang
- School of Chinese Medicine; The University of Hong Kong; Hong Kong P. R. China
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15
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Tang S, Liu S, Guo Y, Liu X, Jiang S. Recent advances of ionic liquids and polymeric ionic liquids in capillary electrophoresis and capillary electrochromatography. J Chromatogr A 2014; 1357:147-57. [PMID: 24786657 DOI: 10.1016/j.chroma.2014.04.037] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 04/09/2014] [Accepted: 04/11/2014] [Indexed: 12/16/2022]
Abstract
Ionic liquids (ILs) and polymeric ionic liquids (PILs) with unique and fascinating properties have drawn considerable interest for their use in separation science, especially in chromatographic techniques. In this article, significant contributions of ILs and PILs in the improvement of capillary electrophoresis and capillary electrochromatography are described, and a specific overview of the most relevant examples of their applications in the last five years is also given. Accordingly, some general conclusions and future perspectives in these areas are discussed.
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Affiliation(s)
- Sheng Tang
- Key Laboratory of Chemistry of Northwestern Plant Resources, CAS/Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100049, China
| | - Shujuan Liu
- Key Laboratory of Chemistry of Northwestern Plant Resources, CAS/Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Yong Guo
- Key Laboratory of Chemistry of Northwestern Plant Resources, CAS/Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
| | - Xia Liu
- Key Laboratory of Chemistry of Northwestern Plant Resources, CAS/Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Shengxiang Jiang
- Key Laboratory of Chemistry of Northwestern Plant Resources, CAS/Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
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16
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Ballus CA, Meinhart AD, de Souza Campos FA, Bruns RE, Godoy HT. Doehlert design-desirability function multi-criteria optimal separation of 17 phenolic compounds from extra-virgin olive oil by capillary zone electrophoresis. Food Chem 2014; 146:558-68. [DOI: 10.1016/j.foodchem.2013.09.102] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Revised: 09/15/2013] [Accepted: 09/17/2013] [Indexed: 10/26/2022]
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17
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Tubaon RMS, Rabanes H, Haddad PR, Quirino JP. Capillary electrophoresis of natural products: 2011-2012. Electrophoresis 2014; 35:190-204. [DOI: 10.1002/elps.201300473] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Revised: 10/29/2013] [Accepted: 10/29/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Ria Marni S. Tubaon
- Australian Centre for Research on Separation Science (ACROSS); School of Physical Sciences-Chemistry; University of Tasmania; Hobart Tasmania Australia
| | - Heide Rabanes
- Australian Centre for Research on Separation Science (ACROSS); School of Physical Sciences-Chemistry; University of Tasmania; Hobart Tasmania Australia
- Chemistry Department; Xavier University, Ateneo de Cagayan; Cagayan de Oro City Philippines
- Department of Chemistry; School of Science and Engineering; Loyola Schools; Ateneo de Manila University; Quezon City Philippines
| | - Paul R. Haddad
- Australian Centre for Research on Separation Science (ACROSS); School of Physical Sciences-Chemistry; University of Tasmania; Hobart Tasmania Australia
| | - Joselito P. Quirino
- Australian Centre for Research on Separation Science (ACROSS); School of Physical Sciences-Chemistry; University of Tasmania; Hobart Tasmania Australia
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18
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Rabanes HR, Guidote AM, Quirino JP. Micellar electrokinetic chromatography of the constituents in Philippine lagundi (Vitex negundo) herbal products. Microchem J 2014. [DOI: 10.1016/j.microc.2013.10.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Medina-Casanellas S, Domínguez-Vega E, Benavente F, Sanz-Nebot V, Somsen GW, de Jong GJ. Low-picomolar analysis of peptides by on-line coupling of fritless solid-phase extraction to sheathless capillary electrophoresis-mass spectrometry. J Chromatogr A 2013; 1328:1-6. [PMID: 24438833 DOI: 10.1016/j.chroma.2013.12.080] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 12/09/2013] [Accepted: 12/24/2013] [Indexed: 01/01/2023]
Abstract
A novel fritless solid-phase extraction (SPE) microcartridge was designed for combination with sheathless capillary electrophoresis-mass spectrometry (sheathless CE-MS) employing a prototype porous-tip capillary for nanoelectrospray ionization (nanoESI). The inlet of the separation capillary (30μm inner diameter (id), 150μm outer diameter (od)) was inserted in a 4mm long SPE microcartridge (150μm id, 365μm od) packed with a C18 sorbent of 55-105μm particle size. Performance of the SPE-CE-MS system was evaluated using diluted solutions of the three opioid peptides dynorphin A (1-7) (DynA), endomorphin 1 (End1) and met-enkephalin (Met). Sample volumes of 1.5μL were loaded on the SPE microcartridge and the retained peptides were eluted with 22nL of an acidic methanol/water (60:40, v/v) solution. Using a pressure of 50mbar during separation to speed up the analysis, good peptide resolution was obtained with acceptable plate numbers (between 53,000 and 92,000). Intraday relative standard deviations (% RSD) for peptide migration times and peak areas were below 4% and 9%, respectively. The SPE-CE-MS method showed good linearity in the 0.05-5ngmL(-1) range and limits of detection (LODs) were 10pgmL(-1). However, loading a larger volume of sample (8μL), LODs could be decreased down to 2pgmL(-1) (2.2-3.5pM). This represents an improvement of up to 5000-fold with respect to the LODs achieved by sheathless CE-MS without on-line preconcentration demonstrating the potential of on-line SPE for further enhancing sensitivity.
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Affiliation(s)
- Silvia Medina-Casanellas
- Department of Analytical Chemistry, University of Barcelona, Diagonal 645, 08028 Barcelona, Spain; Biomolecular Analysis, Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Elena Domínguez-Vega
- Biomolecular Analysis, Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Fernando Benavente
- Department of Analytical Chemistry, University of Barcelona, Diagonal 645, 08028 Barcelona, Spain.
| | - Victoria Sanz-Nebot
- Department of Analytical Chemistry, University of Barcelona, Diagonal 645, 08028 Barcelona, Spain
| | - Govert W Somsen
- Biomolecular Analysis, Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands; AIMMS Division of BioAnalytical Chemistry, VU University, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Gerhardus J de Jong
- Biomolecular Analysis, Utrecht University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
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Fanali C, Dugo L, Dugo P, Mondello L. Capillary-liquid chromatography (CLC) and nano-LC in food analysis. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2013.05.021] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Wuethrich A, Haddad PR, Quirino JP. Chiral capillary electromigration techniques-mass spectrometry-hope and promise. Electrophoresis 2013; 35:2-11. [PMID: 24265218 DOI: 10.1002/elps.201300377] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 10/06/2013] [Accepted: 10/07/2013] [Indexed: 11/09/2022]
Abstract
Analytical methods for chiral compounds require a separation step prior to mass spectrometric detection. CE can separate enantiomers by the use of a chiral selector and can be hyphenated with MS. The chiral selector can be either embedded inside the capillary (electrochromatography) or added into the background solution (EKC). This review describes the fundamentals and highlights the recent developments (September 2009-May 2013) of chiral CEC and EKC with detection using MS. There were 20 research and more than 30 review papers during this period. The research efforts were driven by fundamental studies, such as the development of novel chiral selectors in electrochromatography and of advanced partial filling techniques in EKC in order to optimise separation. Other developments were in application studies, such as in food analytics and metabolomics.
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Affiliation(s)
- Alain Wuethrich
- Australian Centre for Research on Separation Science (ACROSS), School of Chemistry, University of Tasmania, Hobart, Australia
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22
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Liu CM, Chen CY, Lin YW. Estimation of tea catechin levels using micellar electrokinetic chromatography: a quantitative approach. Food Chem 2013; 150:145-50. [PMID: 24360431 DOI: 10.1016/j.foodchem.2013.10.140] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Revised: 06/12/2013] [Accepted: 10/26/2013] [Indexed: 12/21/2022]
Abstract
A simple, inexpensive micellar electrokinetic chromatography (MEKC) method with UV detection was used to determine seven catechins and one xanthine (caffeine) in tea. All the compounds were successfully separated (15kV) within a 15-min migration period with a high number of theoretical plates (>8.0×10(4)) in a running buffer (pH 7) containing 10mmoll(-1) sodium tetraborate, 4mmoll(-1) sodium phosphate, and 25mmoll(-1) SDS. The regression lines of all standard catechins were linear within the range of 0.03-4μgml(-1). Green tea infused at 95°C for 10min showed higher levels of catechins (especially epigallocatechin galate, epicatechin gallate, and epicatechin) than tea infused at 80°C. In addition, major differences were observed in the levels of catechins in the first and second infusions (both brewed at 95°C for 10min). Finally, green tea leaves were infused separately with tap water, deionised water, spring water, reverse osmosis water, and distilled water at 95°C, and the catechin content of the infusions was investigated by the proposed method. In the infusion brewed with tap water, catechins appeared to be epimerisation from the epistructure to the nonepistructure. This epimerisation may take place more readily in tap water than in distilled water owing to the complexity of the ions present in tap water.
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Affiliation(s)
- Chao-Ming Liu
- Department of Chemistry, National Changhua University of Education, Changhua, Taiwan
| | - Chung-Yu Chen
- Department of Chemistry, National Chung Hsing University, Taichung, Taiwan.
| | - Yang-Wei Lin
- Department of Chemistry, National Changhua University of Education, Changhua, Taiwan.
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23
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García-Cañas V, Simó C, Castro-Puyana M, Cifuentes A. Recent advances in the application of capillary electromigration methods for food analysis and Foodomics. Electrophoresis 2013; 35:147-69. [DOI: 10.1002/elps.201300315] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Revised: 08/19/2013] [Accepted: 08/19/2013] [Indexed: 12/25/2022]
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24
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Heng MY, Tan SN, Yong JWH, Ong ES. Emerging green technologies for the chemical standardization of botanicals and herbal preparations. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2013.03.012] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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25
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Dziomba S, Belka M, Kowalski P, Plenis A, Bączek T. The advances of electromigration techniques applied for alkaloid analysis. Biomed Chromatogr 2013; 27:1312-38. [DOI: 10.1002/bmc.2967] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 05/16/2013] [Accepted: 05/16/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Szymon Dziomba
- Department of Pharmaceutical Chemistry; Medical University of Gdańsk; Hallera 107; 80-416; Gdańsk; Poland
| | - Mariusz Belka
- Department of Pharmaceutical Chemistry; Medical University of Gdańsk; Hallera 107; 80-416; Gdańsk; Poland
| | - Piotr Kowalski
- Department of Pharmaceutical Chemistry; Medical University of Gdańsk; Hallera 107; 80-416; Gdańsk; Poland
| | - Alina Plenis
- Department of Pharmaceutical Chemistry; Medical University of Gdańsk; Hallera 107; 80-416; Gdańsk; Poland
| | - Tomasz Bączek
- Department of Pharmaceutical Chemistry; Medical University of Gdańsk; Hallera 107; 80-416; Gdańsk; Poland
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Interactions Between N-Terminal Extracellular Tail of CCR4 and Natural Products of Licorice Using Capillary Electrophoresis. Chromatographia 2013. [DOI: 10.1007/s10337-013-2474-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Brusotti G, Cesari I, Dentamaro A, Caccialanza G, Massolini G. Isolation and characterization of bioactive compounds from plant resources: the role of analysis in the ethnopharmacological approach. J Pharm Biomed Anal 2013; 87:218-28. [PMID: 23591140 DOI: 10.1016/j.jpba.2013.03.007] [Citation(s) in RCA: 113] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Accepted: 03/11/2013] [Indexed: 12/20/2022]
Abstract
The phytochemical research based on ethnopharmacology is considered an effective approach in the discovery of novel chemicals entities with potential as drug leads. Plants/plant extracts/decoctions, used by folklore traditions for treating several diseases, represent a source of chemical entities but no information are available on their nature. Starting from this viewpoint, the aim of this review is to address natural-products chemists to the choice of the best methodologies, which include the combination of extraction/sample preparation tools and analytical techniques, for isolating and characterizing bioactive secondary metabolites from plants, as potential lead compounds in the drug discovery process. The work is distributed according to the different steps involved in the ethnopharmacological approach (extraction, sample preparation, biological screening, etc.), discussing the analytical techniques employed for the isolation and identification of compound/s responsible for the biological activity claimed in the traditional use (separation, spectroscopic, hyphenated techniques, etc.). Particular emphasis will be on herbal medicines applications and developments achieved from 2010 up to date.
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Affiliation(s)
- G Brusotti
- Department of Drug Sciences, University of Pavia, Pavia, Italy; Center for Studies and Researches in Ethnopharmacy (C.I.St.R.E.), University of Pavia, Pavia, Italy.
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28
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Recent advances in on-line concentration and separation of amino acids using capillary electrophoresis. Anal Bioanal Chem 2013; 405:7919-30. [DOI: 10.1007/s00216-013-6906-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 02/23/2013] [Accepted: 03/08/2013] [Indexed: 11/25/2022]
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29
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Zhang Z, Zhang F, Liu Y. Recent Advances in Enhancing the Sensitivity and Resolution of Capillary Electrophoresis. J Chromatogr Sci 2013; 51:666-83. [DOI: 10.1093/chromsci/bmt012] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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30
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Capillary electrophoresis – A new tool for ionic analysis of exhaled breath condensate. J Chromatogr A 2012; 1267:239-45. [DOI: 10.1016/j.chroma.2012.06.085] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Revised: 06/19/2012] [Accepted: 06/25/2012] [Indexed: 12/18/2022]
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31
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Sekhon BK, Sze DMY, Chan WK, Fan K, Li GQ, Moore DE, Roubin RH. PSP activates monocytes in resting human peripheral blood mononuclear cells: immunomodulatory implications for cancer treatment. Food Chem 2012; 138:2201-9. [PMID: 23497877 DOI: 10.1016/j.foodchem.2012.11.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 09/19/2012] [Accepted: 11/06/2012] [Indexed: 12/31/2022]
Abstract
Polysaccharopeptide (PSP), from Coriolus versicolor, has been used as an adjuvant to chemotherapy, and has demonstrated anti-tumor and immunomodulating effects. However its mechanism remains unknown. To elucidate how PSP affects immune populations, we compared PSP treatments both with and without prior incubation in phytohaemagglutinin (PHA) - a process commonly used in immune population experimentation. We first standardised a capillary electrophoresis fingerprinting technique for PSP identification and characterisation. We then established the proliferative capability of PSP on various immune populations in peripheral blood mononuclear cells, using flow cytometry, without prior PHA treatment. It was found that PSP significantly increased the number of monocytes (CD14(+)/CD16(-)) compared to controls without PHA. This increase in monocytes was confirmed using another antibody panel of CD14 and MHCII. In contrast, proliferations of T-cells, NK, and B-cells were not significantly changed by PSP. Thus, stimulating monocyte/macrophage function with PSP could be an effective therapeutic intervention in targeting tumors.
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32
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Gottardo R, Bertaso A, Pascali J, Sorio D, Musile G, Trapani E, Seri C, Serpelloni G, Tagliaro F. Micellar electrokinetic chromatography: a new simple tool for the analysis of synthetic cannabinoids in herbal blends and for the rapid estimation of their logP values. J Chromatogr A 2012; 1267:198-205. [PMID: 23022243 DOI: 10.1016/j.chroma.2012.08.085] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Revised: 08/24/2012] [Accepted: 08/29/2012] [Indexed: 10/27/2022]
Abstract
For the first time a capillary separation based on micellar electrokinetic chromatography (MEKC) with diode array detection (DAD) was developed and validated for the rapid determination of synthetic cannabinoids in herbal blends. Separations were carried out on a 30 μm(ID) × 40 cm uncoated fused silica capillaries. The optimized buffer electrolyte was composed of 25 mM sodium tetraborate pH 8.0, 30 mM SDS and n-propanol 20% (v/v). Separations were performed at 30 kV. Sample injection conditions were 0.5 psi, 10s. Diazepam and JWH-015 were used as internal standards. The determination of the analytes was based on the UV signal recorded at 220 nm, corresponding to the maximum wavelength of absorbance of the molecules, whereas peak identification and purity check were also performed on the basis of the acquisition of UV spectra between 200 and 400 nm wavelengths. Under the described conditions, the separation of the compounds was achieved in 25 min without any significant interference from the matrix. Linearity was assessed within a concentration range from 5 to 100 μg/mL. The intra-day and inter-day imprecision values were below 2.45% for relative migration times and below 10.75% for relative peak areas. The present method was successfully applied to the direct determination of synthetic cannabinoids in 15 different herbal blend samples requiring only sample dilution. In addition, the developed MEKC separation was also applied to estimate the octanol/water partition coefficients (logP) of these new and poorly known molecules.
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Affiliation(s)
- Rossella Gottardo
- Department of Public Health and Community Medicine, Unit of Forensic Medicine, University of Verona, Verona, Italy
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33
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Kerékgyártó M, Kerekes T, Tsai E, Amirkhanian VD, Guttman A. Light-emitting diode induced fluorescence (LED-IF) detection design for a pen-shaped cartridge based single capillary electrophoresis system. Electrophoresis 2012; 33:2752-8. [DOI: 10.1002/elps.201200139] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Márta Kerékgyártó
- Horváth Laboratory of Bioseparation Sciences; University of Debrecen; Hungary
| | - Tamás Kerekes
- Clinical Genomics Centre; Medical and Health Science Center; University of Debrecen; Hungary
| | - Eric Tsai
- BiOptic, Inc.; New Taipei City; Taiwan; Republic of China
| | | | - András Guttman
- Horváth Laboratory of Bioseparation Sciences; University of Debrecen; Hungary
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34
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Benton CM, Lim CK. Liquid chromatography and mass spectrometry of haem biosynthetic intermediates: a review. Biomed Chromatogr 2012; 26:1009-23. [DOI: 10.1002/bmc.2772] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | - Chang Kee Lim
- Clinical Biochemistry; King's College Hospital; Denmark Hill; London; SE5 9RS; UK
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