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Wang A, Liu J, Yang J, Yang L. Aptamer affinity-based microextraction in-line coupled to capillary electrophoresis mass spectrometry using a porous layer/nanoparticle -modified open tubular column. Anal Chim Acta 2023; 1239:340750. [PMID: 36628776 DOI: 10.1016/j.aca.2022.340750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 12/20/2022] [Accepted: 12/23/2022] [Indexed: 12/26/2022]
Abstract
An aptamer affinity based microextraction column is developed to be directly in-line coupled to capillary electrophoresis-mass spectrometry (CE-MS) for analyzing mycotoxins in food samples. Single-stranded DNA aptamers for selective recognition of aflatoxin B1 (AFB1) and ochratoxin A (OTA) targets are co-immobilized via covalent bonds on the surface of the inlet end of a capillary, which is pre-modified with three-dimensional porous layer and gold nanoparticles to enhance the specific surface area and loading capacity. The outlet of the capillary is designed as a porous tip to serve as the spray source for injection to the mass spectrometry. All the necessary processes for pretreatment and analysis of a sample are accomplished in one injection, including aptamer affinity-based microextraction, CE separation and MS detection of analytes. AFB1 and OTA are simultaneously determined in a wide linear range with sample consumption of only 1 μL and the limit-of-detection as low as 1 pg/mL. The microextraction column exhibits excellent repeatability and stability, which can be used over 45 runs within a month with CE separation efficiency and only MS intensity slightly decreased. Mycotoxins in three kinds of cereal based infant foods are accurately analyzed using the proposed method. The study provides a robust and universal approach that would have potential applications in a variety of analytical fields based on selective molecular recognition coupling to CE-MS analysis.
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Affiliation(s)
- Anping Wang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Jianing Liu
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Jinlan Yang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Li Yang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province, Department of Chemistry, Northeast Normal University, Changchun, 130024, China.
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Capillary Electrophoresis Mass Spectrometry: Developments and Applications for Enantioselective Analysis from 2011–2020. Molecules 2022; 27:molecules27134126. [PMID: 35807372 PMCID: PMC9268241 DOI: 10.3390/molecules27134126] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 06/15/2022] [Accepted: 06/21/2022] [Indexed: 12/01/2022] Open
Abstract
It is now more than 25 years since the first report of enantioselective analysis by capillary electrophoresis-mass spectrometry (CE-MS) appeared. This article reviews the power of chiral CE-MS in resolving issues on the use of chiral selector incompatibility with MS and poor detectability encountered for chiral compounds by UV detection. The review begins with the general principles, requirements, and critical aspects of chiral CE-MS instrumentation. Next, the review provides a survey of MS-compatible chiral selectors (CSs) reported during the past decade, and the key achievements encountered in the time period using these CSs. Within the context of the strategies used to combine CE and MS, special attention is paid to the approaches that feature partial filling technique, counter-migration techniques, and direct use of CS, such as molecular micelles. In particular, the development and application of moving and fixed CS for EKC-MS, MEKC-MS, and CEC-MS demonstrate how various chiral compounds analyses were solved in a simple and elegant way during the 2010–2020 review period. The most noteworthy applications in the determination of chiral compounds are critically examined. The operating analytical conditions are detailed in the Tables, and the authors provide commentary on future trends of chiral separations by CE-MS.
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3
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Jin S, Li Z, Yang Q, Fang B, Xiang X, Peng C, Cai W. Simultaneous Characterization and Determination of Warfarin and Its Hydroxylation Metabolites in Rat Plasma by Chiral Liquid Chromatography-Tandem Mass Spectrometry. Pharmaceutics 2022; 14:pharmaceutics14061141. [PMID: 35745714 PMCID: PMC9228315 DOI: 10.3390/pharmaceutics14061141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/19/2022] [Accepted: 05/25/2022] [Indexed: 02/04/2023] Open
Abstract
Warfarin is extensively used for venous thromboembolism and other coagulopathies. In clinical settings, warfarin is administered as a mixture of S- and R-warfarin, and both enantiomers are metabolized by multiple cytochrome P450 enzymes into many hydroxylation metabolites. Due to the high degree of structural similarity of hydroxylation metabolites, their profile possesses significant challenges. The previous methods generally suffer from lacking baseline resolution and/or involving complex analysis processes. To overcome this limitation, a sensitive and specific chiral liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed to simultaneously identify warfarin and hydroxywarfarins enantiomers. Chromatographic separation was achieved on a HYPERSIL CHIRAL-OT column. The mass spectrometric detection was carried out in negative ion MRM mode with electrospray ionization source. The optimized method exhibited satisfactory within-run and between-run accuracy and precision with lower limit of quantification (LLOQ) of 10.0 ng/mL and 1.0 ng/mL for warfarin and 7-, 10(R)-OH-warfarin enantiomers, respectively. Linear responses of warfarin enantiomers and 7-, and 10(R)-OH-warfarin enantiomers in rat plasma were observed over the range of 10.0–8000 ng/mL, and 1.00–800 ng/mL, respectively. The analytes were shown to be stable in various experimental conditions in rat plasma. Protein precipitation was used in sample preparation without a matrix effect. This method was successfully applied to pharmacokinetic study for quantitating the concentrations of S/R-warfarin, S/R-7-OH-warfarin, and S/R-10(R)-OH-warfarin and relatively quantitating 3′-, 4-, 6-, and 8-OH warfarin enantiomers in rat plasma.
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Affiliation(s)
- Shasha Jin
- Department of Clinical Pharmacy, School of Pharmacy, Fudan University, Shanghai 201203, China; (S.J.); (Q.Y.); (B.F.); (X.X.)
| | - Zhihong Li
- National Facility for Protein Science in Shanghai, Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China;
| | - Qing Yang
- Department of Clinical Pharmacy, School of Pharmacy, Fudan University, Shanghai 201203, China; (S.J.); (Q.Y.); (B.F.); (X.X.)
| | - Boyu Fang
- Department of Clinical Pharmacy, School of Pharmacy, Fudan University, Shanghai 201203, China; (S.J.); (Q.Y.); (B.F.); (X.X.)
| | - Xiaoqiang Xiang
- Department of Clinical Pharmacy, School of Pharmacy, Fudan University, Shanghai 201203, China; (S.J.); (Q.Y.); (B.F.); (X.X.)
| | - Chao Peng
- National Facility for Protein Science in Shanghai, Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China;
- Correspondence: (C.P.); (W.C.); Tel.: +86-21-2077-8068 (C.P.); +86-21-5198-0023 (W.C.)
| | - Weimin Cai
- Department of Clinical Pharmacy, School of Pharmacy, Fudan University, Shanghai 201203, China; (S.J.); (Q.Y.); (B.F.); (X.X.)
- Correspondence: (C.P.); (W.C.); Tel.: +86-21-2077-8068 (C.P.); +86-21-5198-0023 (W.C.)
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A novel, rapid and simple UHPLC-MS/MS method for quantification of warfarin in dried blood spots. Anal Biochem 2022; 647:114664. [PMID: 35300971 DOI: 10.1016/j.ab.2022.114664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 03/08/2022] [Accepted: 03/10/2022] [Indexed: 11/01/2022]
Abstract
Warfarin is a common first line anticoagulant with a narrow therapeutic window. Because of the large blood volume needed, previous warfarin determination methods were not applicable to small animals, such as mice. To reduce the number of small animals used needed, we developed and validated a sensitive rapid assay for the simultaneous detection of warfarin enantiomers in mouse dried blood spot (DBS) samples. Analytes were extracted by tert-butyl methyl ether and then separated by a chiral Cellulose-1 column with a mobile phase of 75% acetonitrile (containing 0.1% formic acid). The total chromatographic run time was 3 min. Negative mode electrospray ionization was used for MS/MS detection, where the monitored ion transitions were m/z 307.1 → 161.0 and 341.1 → 284.0 for warfarin and coumachlor (internal standard) respectively. The calibration curves were linear with a correlation coefficient of ≥0.994 for both enantiomers over a concentration range of 10-1000 ng/mL. The satisfactory accuracy and adequate reproducibility of both warfarin enantiomers were validated in terms of intra- and interday precision with mouse DBS cards. The samples were stable at room temperature for at least 14 days. The validated method was applied to a pharmacokinetic study in mice.
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Sánchez-López E, Marina ML. Applications of Capillary Electrophoresis-Mass Spectrometry to Chiral Analysis. Methods Mol Biol 2022; 2531:211-225. [PMID: 35941488 DOI: 10.1007/978-1-0716-2493-7_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Capillary electrophoresis (CE) is a technique that has already proven its importance in the separation of enantiomers. The combination of CE with mass spectrometry (MS) detection further boosts the possibilities of CE in terms of achieving higher sensitivity with the possibility of an unambiguous assignment of analytes of interest. This chapter details four different examples using CE in the electrokinetic chromatography (EKC) mode coupled to MS with application to four different fields of analysis (pharmaceutical, biomedical, food, and agrochemical). The first two methods are based on the use of a single and a double chiral selector system, respectively, in which the partial filling technique (PFT) had to be used to avoid MS-source contamination. In the last two examples, PFT was not needed as they were based on the use of low concentrations of chiral selector but a derivatization step was necessary to allow proper enantiorecognition with the chiral selectors. Description of these protocols is fully explained.
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Affiliation(s)
- Elena Sánchez-López
- Universidad de Alcalá, Departamento de Química Analítica, Química Física e Ingeniería Química, Alcalá de Henares (Madrid), Spain
- Universidad de Alcalá, Instituto de Investigación Química "Andrés M. del Río" (IQAR), Alcalá de Henares (Madrid), Spain
| | - María Luisa Marina
- Universidad de Alcalá, Departamento de Química Analítica, Química Física e Ingeniería Química, Alcalá de Henares (Madrid), Spain.
- Universidad de Alcalá, Instituto de Investigación Química "Andrés M. del Río" (IQAR), Alcalá de Henares (Madrid), Spain.
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El Deeb S, Silva CF, Junior CSN, Hanafi RS, Borges KB. Chiral Capillary Electrokinetic Chromatography: Principle and Applications, Detection and Identification, Design of Experiment, and Exploration of Chiral Recognition Using Molecular Modeling. Molecules 2021; 26:2841. [PMID: 34064769 PMCID: PMC8151978 DOI: 10.3390/molecules26102841] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/04/2021] [Accepted: 05/07/2021] [Indexed: 12/19/2022] Open
Abstract
This work reviews the literature of chiral capillary electrokinetic chromatography from January 2016 to March 2021. This is done to explore the state-of-the-art approach and recent developments carried out in this field. The separation principle of the technique is described and supported with simple graphical illustrations, showing migration under normal and reversed polarity modes of the separation voltage. The most relevant applications of the technique for enantioseparation of drugs and other enantiomeric molecules in different fields using chiral selectors in single, dual, or multiple systems are highlighted. Measures to improve the detection sensitivity of chiral capillary electrokinetic chromatography with UV detector are discussed, and the alternative aspects are explored, besides special emphases to hyphenation compatibility to mass spectrometry. Partial filling and counter migration techniques are described. Indirect identification of the separated enantiomers and the determination of enantiomeric migration order are mentioned. The application of Quality by Design principles to facilitate method development, optimization, and validation is presented. The elucidation and explanation of chiral recognition in molecular bases are discussed with special focus on the role of molecular modeling.
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Affiliation(s)
- Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, 38106 Braunschweig, Germany
| | - Camilla Fonseca Silva
- Departamento de Ciências Naturais, Campus Dom Bosco, Universidade Federal de São João del-Rei (UFSJ), Praça Dom Helvécio 74, Fábricas, São João del-Rei 36301-160, Minas Gerais, Brazil; (C.F.S.); (C.S.N.J.); (K.B.B.)
| | - Clebio Soares Nascimento Junior
- Departamento de Ciências Naturais, Campus Dom Bosco, Universidade Federal de São João del-Rei (UFSJ), Praça Dom Helvécio 74, Fábricas, São João del-Rei 36301-160, Minas Gerais, Brazil; (C.F.S.); (C.S.N.J.); (K.B.B.)
| | - Rasha Sayed Hanafi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt;
| | - Keyller Bastos Borges
- Departamento de Ciências Naturais, Campus Dom Bosco, Universidade Federal de São João del-Rei (UFSJ), Praça Dom Helvécio 74, Fábricas, São João del-Rei 36301-160, Minas Gerais, Brazil; (C.F.S.); (C.S.N.J.); (K.B.B.)
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Caslavska J, Thormann W. Bioanalysis of drugs and their metabolites by chiral electromigration techniques (2010-2020). Electrophoresis 2021; 42:1744-1760. [PMID: 33570170 DOI: 10.1002/elps.202000383] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 12/11/2022]
Abstract
The further development and application of capillary electromigration techniques for the enantioselective determination of drugs and their metabolites in body fluids, tissues, and in vitro preparations during the 2010 to 2020 time period continued to proof their usefulness and attractiveness in bioanalysis. This review discusses the principles and important aspects of capillary electrophoresis- based chiral drug bioassays, provides a survey of the assays reported during the past 10 years and presents an overview of the key achievements encountered in that time period. For systems with charged chiral selectors, special attention is paid on assays that feature field-amplified sample injection to enable the determination of ppb levels of analytes and optimized online incubation procedures for the rapid assessment of a metabolic pathway. Applications discussed encompass the pharmacokinetics of drug enantiomers in vivo and in vitro, the impact of inhibitors on metabolic steps, the elucidation of the stereoselectivity of drug metabolism in vivo and in vitro, and drug enantiomers in toxicological, forensic, and doping analysis.
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Affiliation(s)
- Jitka Caslavska
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Wolfgang Thormann
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
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de Koster N, Clark CP, Kohler I. Past, present, and future developments in enantioselective analysis using capillary electromigration techniques. Electrophoresis 2021; 42:38-57. [PMID: 32914880 PMCID: PMC7821218 DOI: 10.1002/elps.202000151] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 08/22/2020] [Accepted: 09/08/2020] [Indexed: 12/16/2022]
Abstract
Enantioseparation of chiral products has become increasingly important in a large diversity of academic and industrial applications. The separation of chiral compounds is inherently challenging and thus requires a suitable analytical technique that can achieve high resolution and sensitivity. In this context, CE has shown remarkable results so far. Chiral CE offers an orthogonal enantioselectivity and is typically considered less costly than chromatographic techniques, since only minute amounts of chiral selectors are needed. Several CE approaches have been developed for chiral analysis, including chiral EKC and chiral CEC. Enantioseparations by EKC benefit from the wide variety of possible pseudostationary phases that can be employed. Chiral CEC, on the other hand, combines chromatographic separation principles with the bulk fluid movement of CE, benefitting from reduced band broadening as compared to pressure-driven systems. Although UV detection is conventionally used for these approaches, MS can also be considered. CE-MS represents a promising alternative due to the increased sensitivity and selectivity, enabling the chiral analysis of complex samples. The potential contamination of the MS ion source in EKC-MS can be overcome using partial-filling and counter-migration techniques. However, chiral analysis using monolithic and open-tubular CEC-MS awaits additional method validation and a dedicated commercial interface. Further efforts in chiral CE are expected toward the improvement of existing techniques, the development of novel pseudostationary phases, and establishing the use of chiral ionic liquids, molecular imprinted polymers, and metal-organic frameworks. These developments will certainly foster the adoption of CE(-MS) as a well-established technique in routine chiral analysis.
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Affiliation(s)
- Nicky de Koster
- Leiden Academic Centre for Drug Research, Division of Systems Biomedicine and PharmacologyLeiden UniversityLeidenThe Netherlands
| | - Charles P. Clark
- Leiden Academic Centre for Drug Research, Division of Systems Biomedicine and PharmacologyLeiden UniversityLeidenThe Netherlands
| | - Isabelle Kohler
- Division of BioAnalytical Chemistry, Department of Chemistry and Pharmaceutical Sciences, Amsterdam Institute for Molecular and Life SciencesVrije Universiteit AmsterdamAmsterdamThe Netherlands
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Chiral Micellar Electrokinetic Chromatography. J Chromatogr A 2020; 1626:461383. [PMID: 32797856 DOI: 10.1016/j.chroma.2020.461383] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/29/2020] [Accepted: 06/30/2020] [Indexed: 12/18/2022]
Abstract
The potential of Micellar Electrokinetic Chromatography to achieve enantiomeric separations is reviewed in this article. The separation principles and the most frequently employed separation strategies to achieve chiral separations by Micellar Electrokinetic Chromatography are described. The use of chiral micellar systems alone or combined with other micellar systems or chiral selectors, as well as of mixtures of achiral micellar systems with chiral selectors is discussed together with the effect of different additives present in the separation medium. Indirect methods based on the derivatization of analytes with chiral derivatizing reagents and the use of achiral micelles are also considered. Preconcentration techniques employed to improve sensitivity and the main approaches developed to facilitate the coupling with Mass Spectrometry are included. The most recent and relevant methodologies developed by chiral Micellar Electrokinetic Chromatography and their applications in different fields are presented.
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Dong-Wei C, Yuan Z, Xiao-Yi D, Yu Z, Guo-Hui L, Xue-Song F. Progress in Pretreatment and Analytical Methods of Coumarins: An Update since 2012 - A Review. Crit Rev Anal Chem 2020; 51:503-526. [PMID: 32314593 DOI: 10.1080/10408347.2020.1750338] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Coumarins are widely used due to their wide range of biological activities, but the long-term or excessive use of coumarin flavors can pose serious health hazards. Therefore, sensitive and specific methods for the quantification of these compounds in different matrices have been developed. In this review, an updated overview of the latest trends in sample preparation techniques and methods used to detect coumarins from March 2012 to April 2019 is provided. This study reviews different analytical methods (such as liquid chromatography coupled with different detectors, electrochemical sensors, capillary electrophoresis, etc.) and different pretreatment methods (such as liquid-liquid extraction, solid-phase extraction, dispersive liquid-liquid microextraction, etc.). Different methods for the pretreatment and determination of coumarins in plant, food, environmental, pharmaceutical and biological samples are summarized, discussed and compared.HighlightsProgress in pretreatment and analytical methods of coumarins are summarized.Fundamentals, instrumentation and applications of purification and quantification are summarized and compared.Optimization of experimental conditions are discussed.Newly emerged eco-friendly methods are introduced.
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Affiliation(s)
- Cui Dong-Wei
- School of Pharmacy, China Medical University, Shenyang, China
| | - Zhang Yuan
- Department of Pharmacy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Duan Xiao-Yi
- School of Pharmacy, China Medical University, Shenyang, China
| | - Zhou Yu
- Department of Pharmacy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Li Guo-Hui
- Department of Pharmacy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Feng Xue-Song
- School of Pharmacy, China Medical University, Shenyang, China
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Huang ZA, Scotland KB, Li Y, Tan J, Kung SHY, Chew BH, Chen DDY, Lange D. Determination of urinary prostaglandin E 2 as a potential biomarker of ureteral stent associated inflammation. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1145:122107. [PMID: 32315976 DOI: 10.1016/j.jchromb.2020.122107] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/04/2020] [Accepted: 04/04/2020] [Indexed: 12/21/2022]
Abstract
Ureteral stents are the most widely used surgical implant in urology. However, they may cause adverse effects to patients, including pain, discomfort, and inflammation. In this work, the inflammatory effect of stent placement and the associated elevation of cyclooxygenase-2 (COX-2) expression were observed. Furthermore, a capillary electrophoresis mass spectrometry (CE-MS) based approach was subsequently developed to quantify urinary prostaglandin E2 (PGE2), a COX-2 metabolite known to contribute to inflammatory renal diseases, to further interrogate the role of this pathway. Urine samples were cleaned and preconcentrated by solid-phase extraction (SPE), and an on-line sample stacking method was used for the enrichment of analytes. The accuracy, precision, and specificity of this method were validated. Standard addition methods were performed to assess the reliability of using deuterated internal standards (IS) in compensating the remaining matrix effect after SPE as well as the detector fluctuation. Through the analysis of 32 pig urine samples, a statistically significant increase of PGE2 was observed in the stented group compared to the unstented (P = 0.01) and the recovered (P = 0.004) groups. This work determined that stent placement may contribute to COX-2-dependent inflammation and developed a reliable CE-MS based methodology to quantify PGE2 in stented individuals that may further understand the biology of stent-associated inflammation and inform urologic patient management.
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Affiliation(s)
- Zi-Ao Huang
- Department of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
| | - Kymora B Scotland
- Department of Urology, University of California Los Angeles, Los Angeles, CA 90024, USA.
| | - Yueyang Li
- Department of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
| | - Jiahua Tan
- Department of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
| | - Sonia H Y Kung
- Vancouver Prostate Center, Vancouver, BC V5Z 1M9, Canada
| | - Ben H Chew
- Department of Urologic Sciences, The Stone Centre at Vancouver General Hospital, University of British Columbia, Vancouver, BC V6H 3Z6, Canada
| | - David D Y Chen
- Department of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada.
| | - Dirk Lange
- Department of Urologic Sciences, The Stone Centre at Vancouver General Hospital, University of British Columbia, Vancouver, BC V6H 3Z6, Canada.
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Casado N, Valimaña-Traverso J, García MÁ, Marina ML. Enantiomeric Determination of Drugs in Pharmaceutical Formulations and Biological Samples by Electrokinetic Chromatography. Crit Rev Anal Chem 2019; 50:554-584. [PMID: 31569950 DOI: 10.1080/10408347.2019.1670043] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Chirality is a relevant issue in the pharmaceutical field due to the different biological activity that enantiomers of a chiral drug can show. In fact, the desired biological or pharmaceutical activity might be present in only one of the enantiomers, while the other enantiomer(s) may have different biological activity, be inactive or even toxic. This has motivated in recent years the development of drugs marketed as pure enantiomers to avoid exposing the organism to the action of enantiomers that may not be active or even harmful to health. Thus, it is of high interest to develop enantioselective analytical methodologies to control the presence of enantiomeric impurities and to understand the enantioselective metabolism of chiral drugs. This review gives an overview about the analytical strategies developed by electrokinetic chromatography (EKC) from 2010 to June 2019 for the enantiomeric determination of drugs in both pharmaceutical formulations and biological samples. The types of chiral selectors used, the migration order of enantiomers, their resolution, the detection technique employed and the sensitivity achieved are revised and compared. Also, applications to assess the enantiomeric purity control of pharmaceutical formulations and to determine chiral drugs in biological samples to study their metabolism are included. Advantages and limitations of the chiral methods developed by EKC are also discussed.
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Affiliation(s)
- Natalia Casado
- Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Ctra. Madrid-Barcelona Km. 33.600, Alcalá de Henares, Madrid, Spain
| | - Jesús Valimaña-Traverso
- Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Ctra. Madrid-Barcelona Km. 33.600, Alcalá de Henares, Madrid, Spain
| | - María Ángeles García
- Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Ctra. Madrid-Barcelona Km. 33.600, Alcalá de Henares, Madrid, Spain.,Instituto de Investigación Química, "Andrés M. del Río" (IQAR), Universidad de Alcalá, Ctra. Madrid-Barcelona Km. 33.600, Alcalá de Henares, Madrid, Spain
| | - María Luisa Marina
- Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Ctra. Madrid-Barcelona Km. 33.600, Alcalá de Henares, Madrid, Spain.,Instituto de Investigación Química, "Andrés M. del Río" (IQAR), Universidad de Alcalá, Ctra. Madrid-Barcelona Km. 33.600, Alcalá de Henares, Madrid, Spain
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14
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Kobayashi S, Ishii K, Yamada Y, Ryu E, Hashizume J, Nose S, Hara T, Nakashima M, Ohyama K. Combination index of the concentration and in vivo antagonism activity of racemic warfarin and its metabolites to assess individual drug responses. J Thromb Thrombolysis 2019; 47:467-472. [PMID: 30465164 DOI: 10.1007/s11239-018-1780-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The present study was undertaken to examine whether in vivo vitamin K epoxide reductase complex 1 (VKOR) "actual" antagonism activity, calculated by the concentrations and the reported anticoagulant activities of the R- and S-warfarin enantiomers and their metabolites, correlates with the weekly dose of warfarin. Five patients under palliative care were enrolled in our study and 20 serum samples were analyzed by an enantioselective high-performance liquid chromatography-ultraviolet detection method. In vivo VKOR inhibition activities of S-warfarin, R-warfarin, 7- and 10-hydroxywarfarin were calculated as the ratio of drug or metabolite concentration to the IC50. The mean drug concentrations (± SD) of S- and R-warfarin, 7-hydroxywarfarin and 10-hydroxywarfarin were 334 ± 154 ng/ml, 370 ± 115 ng/ml, 42 ± 15 ng/ml and 80 ± 44 ng/ml, respectively. Then, in vivo VKOR actual antagonism activities of S- and R-warfarin, 7-hydroxywarfarin and 10-hydroxywarfarin were calculated. Good correlation (R2 = 0.69-0.72) was obtained between the weekly warfarin dose and the ratios of INR/actual antagonism activity, while poor correlation was observed between the weekly warfarin dose and INR (R2 = 0.32) or the activities (R2 = 0.17-0.21). Actual antagonism activities along with the INR correlated well with the warfarin dose. This parameter may be useful for predicting or altering warfarin doses, although further verification in a larger study is required.
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Affiliation(s)
- Shuhei Kobayashi
- School of Pharmaceutical Sciences, Nagasaki University, Nagasaki, Japan
| | - Koji Ishii
- Department of Anesthesiology, Nagasaki University School of Medicine, Nagasaki, Japan
| | - Yasuko Yamada
- Analytical and Quality Evaluation Research Laboratories, Daiichi Sankyo Co., Ltd., Hiratsuka, Japan
| | - Emi Ryu
- Department of Pharmacy, Nagasaki University Hospital, Nagasaki, Japan
| | - Junya Hashizume
- Department of Pharmacy, Nagasaki University Hospital, Nagasaki, Japan
| | - Seiichi Nose
- Department of Pharmacy, Nagasaki University Hospital, Nagasaki, Japan
| | - Tetsuya Hara
- Department of Anesthesiology, Nagasaki University School of Medicine, Nagasaki, Japan
| | - Mikiro Nakashima
- Unit of Medical Pharmacy, Department of Pharmacy Practice, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto-machi, Nagasaki, 852-8588, Japan
| | - Kaname Ohyama
- Unit of Medical Pharmacy, Department of Pharmacy Practice, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto-machi, Nagasaki, 852-8588, Japan.
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GAO F, WANG XF, ZHANG B. Research and Application Progress of Micellar Electrokinetic Chromatography in Separation of Proteins. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1016/s1872-2040(19)61163-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Abstract
Capillary electrophoresis (CE) is a well-established and one of the most powerful separation techniques in the field of chiral separations. Its hyphenation with mass spectrometry (MS) combines both the high separation efficiency and low sample consumption of CE and the high sensitivity and structural information of MS. Thus, the outstanding chiral resolution power of CE along with the MS advantages makes CE-MS a perfect combination to achieve sensitive enantioseparations. This chapter describes three representative examples of different approaches used in the chiral analysis of amino acids in biological fluids by CE-MS. The first methodology uses the partial filling technique to avoid the entry of cyclodextrins in the MS source. The second method shows the possibility to carry out the direct coupling EKC-MS even when a relative high concentration of a native cyclodextrin is used as chiral selector. The last example illustrates an alternative strategy based on the formation of stable diastereomers between an enantiomerically pure chiral reagent and the amino acids enantiomers which can be separated in an achiral environment.
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Patel V, Shamsi SA. Carbohydrate-Based Polymeric Surfactants for Chiral Micellar Electrokinetic Chromatography (CMEKC) Coupled to Mass Spectrometry. Methods Mol Biol 2019; 1985:417-444. [PMID: 31069750 PMCID: PMC7199777 DOI: 10.1007/978-1-4939-9438-0_25] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
Polymeric surfactants (molecular micelles, MoMs) with a variety of chiral head groups and chain lengths may be the most promising chiral selectors when used for sensitive detection of chiral compounds in micellar electrokinetic chromatography-mass spectrometry (MEKC-MS). Various carbohydrate-based MS compatible surfactants with phosphate and sulfate head groups have been recently synthesized in our laboratory for its application in CMEKC-MS. In this chapter, we illustrate that the synthesized glucopyranoside-based MoMs are fully compatible with electrospray ionization MS and can be successfully used as a chiral selector for high-throughput screening of multiple chiral compounds using MRM mode in CMEKC-MS/MS experiments. This chapter describes in detail synthesis and utility of α- and β-glucopyranoside-based polymeric surfactant with two different chain lengths and head groups. The presented examples optimize the effect of appropriate millimolar concentration of monomer sugar surfactants required for polymerization as it affects the separations of acidic and basic compounds. Under the optimized concentration of the monomer needed for polymerization (i.e., an equivalent monomer concentration of MoMs), the superiority of MEKC-MS over MEKC-UV is evident. Structurally similar basic drugs with the difference in hydrophobicity are first tested in MEKC-MS to find the optimum head group and optimum chain length with the aim for developing a widely applicable polymeric glucopyranoside-based surfactant. The partial enantioresolution of several structurally similar basic compounds is significantly improved when switching from one head group to another head group of the glucopyranoside MoMs. Thus, complementary separations using poly-N-β-D-SUGP versus poly-N-β-D-SUGS were seen. This phenomenon also exists when comparing the MoMs, which differ in an anomeric configuration such as poly-N-α-D-SUGP and poly-N-β-D-SUGP.
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Affiliation(s)
- Vijay Patel
- Department of Chemistry, Georgia State University, Natural Science Center, Atlanta, GA, USA
| | - Shahab A Shamsi
- Department of Chemistry, Georgia State University, Natural Science Center, Atlanta, GA, USA.
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18
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Novel isomeric metabolite profiles correlate with warfarin metabolism phenotype during maintenance dosing in a pilot study of 29 patients. Blood Coagul Fibrinolysis 2018; 29:602-612. [PMID: 30334816 DOI: 10.1097/mbc.0000000000000752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
: For this pilot study, we leveraged metabolite patterns for warfarin patients to more accurately assess clinically relevant differences in drug metabolism. We tested our hypothesis that plasma metabolite levels correlate with the influence of clinical factors on R-warfarin and S-warfarin metabolism (warfarin metabolic phenotype). We recruited 29 patients receiving a maintenance dose and testing within targeted therapeutic range. We determined their CYP2C9 and vitamin K epoxide reductase genotype and profiled 14 isomeric forms of warfarin and its metabolites. We employed three novel types of clearance ratios using analyte levels to perform multiple-linear regression analyses with clinical factors impacting drug metabolism and dose-responses. Competitive clearance ratios correlated with seven clinical factors including lifestyle choices (smoking), genetics (CYP2C9 and vitamin K epoxide reductase 1), and drug interactions (omeprazole) along with age, weight, and malignancy. Significant competitive clearance ratio correlations (P = 0.04 to < 0.001) explained 21-95% variability. Their performances surpassed that of oxidative and metabolic clearance ratios based on the number and significance of correlations. Competitive clearance ratios may accurately assess significance of factors on maintaining levels of pharmacologically active forms of the drug and metabolites related to dose-responses and thus provide a strategy to minimize adverse events and improve safety during anticoagulant therapy. This unique capacity could provide a strategy in a future, higher power study with a larger cohort of patients to more accurately assess the significance of clinical factors on active drug levels contributing to warfarin dose-responses.
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19
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Enantiomeric separations by capillary electrophoresis: Theoretical method to determine optimum chiral selector concentration. J Chromatogr A 2018; 1539:71-77. [DOI: 10.1016/j.chroma.2018.01.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 12/18/2017] [Accepted: 01/01/2018] [Indexed: 01/28/2023]
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20
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Crego AL, Mateos M, Nozal L. Recent contributions for improving sensitivity in chiral CE. Electrophoresis 2017; 39:67-81. [PMID: 28960403 DOI: 10.1002/elps.201700293] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 09/14/2017] [Accepted: 09/14/2017] [Indexed: 01/02/2023]
Abstract
The flexibility and versatility of the chiral CE are unrivaled and the same instrumentation can be used to separate a diverse range of analytes, both large and small molecules, whether charged or uncharged. However, one of the disadvantages is generally thought to be the poor sensitivity of ultraviolet (UV) detection, which is the most popular among CE detectors. This review focuses on methodologies and applications regarding improvements of sensitivity in chiral CE published in the last 2 years (June 2015 until May 2017). This contribution continues to update this series of biannual reviews, first published in Electrophoresis in 2006. The main body of the review brings a survey of publications organized according to different approaches to detect a low amount of analytes, either by sample treatment procedures or by in-capillary sample preconcentration techniques, both using UV detection, or even by employing detection systems more sensitive than UV absorption, such as LIF or MS. This review provides comprehensive tables listing the new approaches in sensitive chiral CE with categorizing by the fundamental mechanism to enhance the sensitivity, which provide relevant information on the strategies employed. The concluding remarks in the final part of the review evaluate present state of art and the trends for sensitivity enhancement in chiral CE.
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Affiliation(s)
- Antonio Luis Crego
- Department of Analytical Chemistry, Physical Chemistry, and Chemical Engineering, Faculty of Biology, Environmental Sciences, and Chemistry, University of Alcalá, Madrid, Spain
| | - María Mateos
- Institute of Applied Chemistry and Biotechnology, University of Alcalá, Madrid, Spain
| | - Leonor Nozal
- Institute of Applied Chemistry and Biotechnology, University of Alcalá, Madrid, Spain
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Jiang Y, He MY, Zhang WJ, Luo P, Guo D, Fang X, Xu W. Recent advances of capillary electrophoresis-mass spectrometry instrumentation and methodology. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2017.05.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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22
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Mostafa AAA. Enantiomeric separation and quantitation of warfarin and its metabolites in human plasma by LC-MS/MS. EUROPEAN JOURNAL OF CHEMISTRY 2016; 7:357-362. [DOI: 10.5155/eurjchem.7.3.357-362.1470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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23
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Liu Y, Shamsi SA. Chiral Capillary Electrophoresis-Mass Spectrometry: Developments and Applications in the Period 2010-2015: A Review. J Chromatogr Sci 2016; 54:1771-1786. [PMID: 27371855 DOI: 10.1093/chromsci/bmw100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Indexed: 11/14/2022]
Abstract
The sensitive detection of chiral compounds by capillary electrophoresis (CE) in biological samples remains a significant challenge and is currently considered a bottleneck in many chiral analysis projects. Chiral CE-MS can significantly improve the limit of detection and provide high sensitivity compared with chiral CE-UV. Chiral selectors such as modified cyclodextrins (CDs) and polymeric surfactants (a.k.a. molecular micelles, MoMs) in electrokinetic chromatography (EKC), micellar electrokinetic chromatography (MEKC) and capillary electrochromatography (CEC) have been developed to address the need for high sensitivity by CE-MS. However, several problems remain to be investigated to fully understand the potential of these hyphenation modes. This review provides introduction to major chiral CE-MS modes for the novice and highlights the important working principles of each mode of chiral CE-MS. Next, recent practical developments and progress in chiral CE-MS dating from January 2010 to September 2015 are described. The achievements in clinical and biomedical sciences using a variety of chiral selectors such as CDs and MoMs in EKC-MS, MEKC-MS and CEC-MS are discussed. Finally, conclusions and future prospects of CE-MS in chiral analysis are drafted.
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Affiliation(s)
- Yijin Liu
- Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA
| | - Shahab A Shamsi
- Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA
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Malátková P, Sokolová S, Chocholoušová Havlíková L, Wsól V. Carbonyl reduction of warfarin: Identification and characterization of human warfarin reductases. Biochem Pharmacol 2016; 109:83-90. [DOI: 10.1016/j.bcp.2016.03.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 03/31/2016] [Indexed: 11/16/2022]
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25
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Nowak PM, Woźniakiewicz M, Garnysz M, Kościelniak P. A comparative study of various physicochemically modified capillaries used in CE technique for the three distinct analytical purposes. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1020:134-41. [DOI: 10.1016/j.jchromb.2016.03.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 03/19/2016] [Accepted: 03/24/2016] [Indexed: 10/22/2022]
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26
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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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27
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Determination of selected synthetic cannabinoids and their metabolites by micellar electrokinetic chromatography – mass spectrometry employing perfluoroheptanoic acid-based micellar phase. Talanta 2016; 150:568-76. [DOI: 10.1016/j.talanta.2015.12.078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 12/27/2015] [Accepted: 12/30/2015] [Indexed: 11/22/2022]
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28
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Alshogran OY, Ocque AJ, Leblond FA, Pichette V, Nolin TD. Validation and Application of a Simple UHPLC-MS-MS Method for the Enantiospecific Determination of Warfarin in Human Urine. J Chromatogr Sci 2016; 54:554-60. [PMID: 26657732 PMCID: PMC4885390 DOI: 10.1093/chromsci/bmv186] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 09/20/2015] [Indexed: 11/14/2022]
Abstract
A simple and rapid liquid chromatographic-tandem mass spectrometric method has been developed and validated for the enantiospecific determination of R- and S-warfarin in human urine. Warfarin enantiomers were extracted from urine using methyl tert-butyl ether. Chromatographic separation of warfarin enantiomers and the internal standard d5-warfarin was achieved using a Astec Chirobiotic V column with gradient mobile phase at a flow rate of 400 µL/min over 10 min. Detection was performed on a TSQ Quantum Ultra triple quadrupole mass spectrometer equipped with a heated electrospray ionization source. Analytes were detected in negative ionization mode using selected reaction monitoring. Calibration curves were linear with a correlation coefficient of ≥0.996 for both enantiomers over a concentration range of 5-500 ng/mL. The intra- and interday accuracy and precision for both analytes were within ±9.0%. Excellent extraction efficiency and negligible matrix effects were observed. The applicability of the method was demonstrated by successful measurement of warfarin enantiomers in urine of patients with kidney disease. The method is simple, accurate and reproducible and is currently being used to support warfarin pharmacokinetic studies.
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Affiliation(s)
- Osama Y Alshogran
- Center for Clinical Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, USA Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, USA
| | - Andrew J Ocque
- Center for Clinical Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, USA Department of Pharmacy and Therapeutics, School of Pharmacy, University of Pittsburgh, 208 Salk Pavillion, 335 Sutherland Drive, Pittsburgh, PA 15260, USA
| | - François A Leblond
- Service de Néphrologie et Centre de Recherche, Hôpital Maisonneuve-Rosemont, Montréal, QC, Canada
| | - Vincent Pichette
- Service de Néphrologie et Centre de Recherche, Hôpital Maisonneuve-Rosemont, Montréal, QC, Canada Département de Pharmacologie, Université de Montréal, Montréal, QC, Canada
| | - Thomas D Nolin
- Center for Clinical Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, USA Department of Pharmacy and Therapeutics, School of Pharmacy, University of Pittsburgh, 208 Salk Pavillion, 335 Sutherland Drive, Pittsburgh, PA 15260, USA
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Liu Y, Wu B, Wang P, Shamsi SA. Synthesis, characterization, and application of polysodium N-alkylenyl α-d-glucopyranoside surfactants for micellar electrokinetic chromatography-tandem mass spectrometry. Electrophoresis 2016; 37:913-23. [PMID: 26763089 DOI: 10.1002/elps.201500434] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 12/05/2015] [Accepted: 12/05/2015] [Indexed: 11/08/2022]
Abstract
Sugar-based ionic surfactants forming micelles are known to suppress ESI of various compounds due to decrease in surface tension upon micelle formation . For the first time, poly (sodium N-undecylenyl-α-d-glucopyranoside 4,6-hydrogen phosphate, (poly-α-d-SUGP) based surfactants with different chain lengths and head groups have been successfully synthesized, characterized, and applied as compatible chiral selector for MEKC-ESI-MS/MS. First, the effect of polymerization concentration of the monomer, α-d-SUGP, was evaluated by enantioseparation of one anionic compound (1,1'-binaphthyl-2,2'diyl-hydrogen phosphate) and one zwitterionic compound (dansylated phenylalanine) in MEKC-UV to find the optimum molar surfactant concentration for polymerization. Next, MEKC-UV and MEKC-MS were compared for the enantioseparation of 1,1'-binaphthyl-2,2'diyl-hydrogen phosphate. The influence of polymeric glucopyranoside based surfactant head groups and carbon chain lengths on chiral Rs was evaluated for two classes of cationic drugs (ephedrine alkaloids and β-blockers). Finally, enantioselective MEKC-MS of ephedrine alkaloids and β-blockers were profiled at their optimum pH 5.0 and 7.0, respectively, using 20 mM NH4 OAc, 25 mM poly-α-d-SUGP at 30 kV and 25°C under optimum spray chamber conditions. The LOD for most of the enantiomers ranges from 10 to 100 ng/mL with S/N of at least ≥3.0.
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Affiliation(s)
- Yijin Liu
- Department of Chemistry, Georgia State University, Atlanta, GA, US
| | - Baolin Wu
- Department of Chemistry, Georgia State University, Atlanta, GA, US
| | - Peng Wang
- Department of Chemistry, Georgia State University, Atlanta, GA, US
| | - Shahab A Shamsi
- Department of Chemistry, Georgia State University, Atlanta, GA, US
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Hamidi S, Jouyban A. Pre-Concentration Approaches Combined with Capillary Electrophoresis in Bioanalysis of Chiral Cardiovascular Drugs. PHARMACEUTICAL SCIENCES 2015. [DOI: 10.15171/ps.2015.42] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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31
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Liu Y, Jann M, Vandenberg C, Eap CB, Shamsi SA. Development of an enantioselective assay for simultaneous separation of venlafaxine and O-desmethylvenlafaxine by micellar electrokinetic chromatography-tandem mass spectrometry: Application to the analysis of drug-drug interaction. J Chromatogr A 2015; 1420:119-28. [PMID: 26460073 PMCID: PMC5025041 DOI: 10.1016/j.chroma.2015.09.088] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 09/27/2015] [Accepted: 09/29/2015] [Indexed: 11/30/2022]
Abstract
To-date, there has been no effective chiral capillary electrophoresis-mass spectrometry (CE-MS) method reported for the simultaneous enantioseparation of the antidepressant drug, venlafaxine (VX) and its structurally-similar major metabolite, O-desmethylvenlafaxine (O-DVX). This is mainly due to the difficulty of identifying MS compatible chiral selector, which could provide both high enantioselectivity and sensitive MS detection. In this work, poly-sodium N-undecenoyl-L,L-leucylalaninate (poly-L,L-SULA) was employed as a chiral selector after screening several dipeptide polymeric chiral surfactants. Baseline separation of both O-DVX and VX enantiomers was achieved in 15 min after optimizing the buffer pH, poly-L,L-SULA concentration, nebulizer pressure and separation voltage. Calibration curves in spiked plasma (recoveries higher than 80%) were linear over the concentration range 150-5000 ng/mL for both VX and O-DVX. The limit of detection (LOD) was found to be as low as 30 ng/mL and 21 ng/mL for O-DVX and VX, respectively. This method was successfully applied to measure the plasma concentrations of human volunteers receiving VX or O-DVX orally when co-administered without and with indinivar therapy. The results suggest that micellar electrokinetic chromatography electrospray ionization-tandem mass spectrometry (MEKC-ESI-MS/MS) is an effective low cost alternative technique for the pharmacokinetics and pharmacodynamics studies of both O-DVX and VX enantiomers. The technique has potential to identify drug-drug interaction involving VX and O-DVX enantiomers while administering indinivar therapy.
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Affiliation(s)
- Yijin Liu
- Center of Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303, United States
| | - Michael Jann
- Health Science Center, University of North Texas, Fort Worth, TX 76107, United States
| | - Chad Vandenberg
- Midwestern University, Institute for Healthcare Innovation, Glendale, AZ 85308, United States
| | - Chin B Eap
- Unit of Pharmacogenetics and Clinical Psychopharmacology, Department of Psychiatry, Lausanne University, Hospital of Cery, Prilly, Lausanne, Switzerland
| | - Shahab A Shamsi
- Center of Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303, United States.
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Sánchez-López E, Marina ML, Crego AL. Improving the sensitivity in chiral capillary electrophoresis. Electrophoresis 2015; 37:19-34. [PMID: 26434566 DOI: 10.1002/elps.201500315] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 09/14/2015] [Accepted: 09/26/2015] [Indexed: 12/16/2022]
Abstract
CE is known for being one of the most powerful analytical techniques when performing enantioseparations due to its numerous advantages such as excellent separation efficiency and extremely low solvents and reagents consumption, all of them derived from the capillary small dimensions. Moreover, it is worth highlighting that unlike in chromatographic techniques, in CE the chiral selector is generally within the separation medium instead of being attached to the separation column which makes the method optimization a more versatile task. Despite its numerous advantages, when using UV-Vis detection, CE lacks of sensitivity detection due to its short optical path length derived from the narrow separation capillary. This issue can be overcome by means of different approaches, either by sample treatment procedures or by in-capillary preconcentration techniques or even by employing detection systems more sensitive than UV-Vis, such as LIF or MS. The present review assembles the latest contributions regarding improvements of sensitivity in chiral CE published from June 2013 until May 2015, which follows the works included in a previous review reported by Sánchez-Hernández et al. [Electrophoresis 2014, 35, 12-27].
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Affiliation(s)
- Elena Sánchez-López
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Biology, Environmental Sciences and Chemistry, University of Alcalá, Alcalá de Henares, Madrid, Spain
| | - María Luisa Marina
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Biology, Environmental Sciences and Chemistry, University of Alcalá, Alcalá de Henares, Madrid, Spain
| | - Antonio L Crego
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Biology, Environmental Sciences and Chemistry, University of Alcalá, Alcalá de Henares, Madrid, Spain
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Simultaneous and stereospecific analysis of warfarin oxidative metabolism using 2D LC/Q-TOF. Bioanalysis 2015; 7:2297-2309. [DOI: 10.4155/bio.15.119] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: Warfarin is a widely used racemic anticoagulant with narrow therapeutic range and wide interindividual response to treatment. This is due to the extensive and differential clearance of R- and S-warfarin with the involvement of several polymorphic CYP450 enzymes resulting in the formation of several stereoisomeric oxidative metabolites. Results: A stereospecific 2DLC/Q-TOF method was developed for the simultaneous identification and quantitation of hydroxylated warfarin metabolites from a single sample analysis. Using this method metabolites from rat microsomal and plated hepatocyte incubations with R-, S- and (R/S)-warfarin were estimated. Conclusion: Multiheart cutting with high resolution MS and MS/MS analysis is suggested as a viable approach for achiral-chiral separation of metabolites of warfarin and other chiral or prochiral drugs.
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Wuethrich A, Haddad PR, Quirino JP. Online sample concentration in partial-filling chiral electrokinetic chromatography – mass spectrometry. Chirality 2015; 26:734-8. [PMID: 25513680 DOI: 10.1002/chir.22257] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The concentration sensitivity of a racemic drug (chlorpheniramine maleate) in chiral capillary electrophoresis with electrospray ionization – mass spectrometric detection was improved ~500-fold via stacking. Enantiomeric separation was achieved through the use of a neutral chiral pseudostationary phase (2-hydroxpropyl-β-cyclodextrin), untreated fused-silica capillaries, and the application of a partial-filling technique to prevent the pseudostationary phase from entering the detector. A concentration factor of 50 resulted from field-enhanced sample injection(FESI). However, the higher concentration factor was achieved by combining FESI with micelle-to-solvent stacking (MSS) to increase sample load and focus the analyte band. MSS was achieved by injection of an ammonium lauryl sulfate micellar plug prior to sample injection. The sample diluent was a 20-fold dilution of the background electrolyte (50 mM ammonium acetate, pH 3.5) with 60% acetonitrile. This methodology provided a limit of detection (LOD) of as low as 5 ng/ml of the racemate.
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35
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Cheng C, Nian YC. Online capillary solid-phase microextraction coupled liquid chromatography-mass spectrometry for analysis of chiral secondary alcohol products in yeast catalyzed stereoselective reduction cell culture. J Chromatogr A 2015; 1380:1-10. [DOI: 10.1016/j.chroma.2014.12.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 12/10/2014] [Accepted: 12/18/2014] [Indexed: 11/17/2022]
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36
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Statistical design in optimization and robustness testing of a RP-HPLC method for determination of warfarin and its process-related impurities. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2015. [DOI: 10.1007/s13738-015-0597-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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37
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Aturki Z, Rocco A, Rocchi S, Fanali S. Current applications of miniaturized chromatographic and electrophoretic techniques in drug analysis. J Pharm Biomed Anal 2014; 101:194-220. [DOI: 10.1016/j.jpba.2014.03.041] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 03/24/2014] [Indexed: 12/20/2022]
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38
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Nowak P, Garnysz M, Woźniakiewicz M, Kościelniak P. Fast separation of warfarin and 7-hydroxywarfarin enantiomers by cyclodextrin-assisted capillary electrophoresis. J Sep Sci 2014; 37:2625-31. [DOI: 10.1002/jssc.201400514] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 06/13/2014] [Accepted: 06/13/2014] [Indexed: 01/01/2023]
Affiliation(s)
- Paweł Nowak
- Department of Analytical Chemistry; Faculty of Chemistry; Jagiellonian University in Kraków; Kraków Poland
| | - Magdalena Garnysz
- Department of Analytical Chemistry; Faculty of Chemistry; Jagiellonian University in Kraków; Kraków Poland
| | - Michał Woźniakiewicz
- Department of Analytical Chemistry; Faculty of Chemistry; Jagiellonian University in Kraków; Kraków Poland
| | - Paweł Kościelniak
- Department of Analytical Chemistry; Faculty of Chemistry; Jagiellonian University in Kraków; Kraków Poland
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Robledo VR, Smyth WF. Review of the CE-MS platform as a powerful alternative to conventional couplings in bio-omics and target-based applications. Electrophoresis 2014; 35:2292-308. [DOI: 10.1002/elps.201300561] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 01/24/2014] [Accepted: 01/24/2014] [Indexed: 02/01/2023]
Affiliation(s)
- Virginia Rodríguez Robledo
- Faculty of Pharmacy; Department of Analytical Chemistry and Food Technology; University of Castilla-La Mancha (UCLM); Albacete Spain
| | - William Franklin Smyth
- School of Pharmacy and Pharmaceutical Sciences; University of Ulster; Coleraine Northern Ireland UK
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40
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Alshogran OY, Ocque AJ, Zhao J, Day BW, Leblond FA, Pichette V, Nolin TD. Determination of warfarin alcohols by ultra-high performance liquid chromatography–tandem mass spectrometry: Application to in vitro enzyme kinetic studies. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 944:63-8. [DOI: 10.1016/j.jchromb.2013.11.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 10/11/2013] [Accepted: 11/06/2013] [Indexed: 10/26/2022]
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41
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Regalado EL, Sherer EC, Green MD, Hendersonl DW, Thomas Williamson R, Joyce LA, Welch CJ. Chromatographic Separation and Assignment of Absolute Configuration of Hydroxywarfarin Isomers. Chirality 2013; 26:95-101. [DOI: 10.1002/chir.22274] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 10/24/2013] [Accepted: 10/28/2013] [Indexed: 11/10/2022]
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42
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A cellular system for quantitation of vitamin K cycle activity: structure-activity effects on vitamin K antagonism by warfarin metabolites. Blood 2013; 123:582-9. [PMID: 24297869 DOI: 10.1182/blood-2013-05-505123] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Warfarin and other 4-hydroxycoumarins inhibit vitamin K epoxide reductase (VKOR) by depleting reduced vitamin K that is required for posttranslational modification of vitamin K-dependent clotting factors. In vitro prediction of the in vivo potency of vitamin K antagonists is complicated by the complex multicomponent nature of the vitamin K cycle. Here we describe a sensitive assay that enables quantitative analysis of γ-glutamyl carboxylation and its antagonism in live cells. We engineered a human embryonic kidney (HEK) 293-derived cell line (HEK 293-C3) to express a chimeric protein (F9CH) comprising the Gla domain of factor IX fused to the transmembrane and cytoplasmic regions of proline-rich Gla protein 2. Maximal γ-glutamyl carboxylation of F9CH required vitamin K supplementation, and was dose-dependently inhibited by racemic warfarin at a physiologically relevant concentration. Cellular γ-glutamyl carboxylation also exhibited differential VKOR inhibition by warfarin enantiomers (S > R) consistent with their in vivo potencies. We further analyzed the structure-activity relationship for inhibition of γ-glutamyl carboxylation by warfarin metabolites, observing tolerance to phenolic substitution at the C-5 and especially C-6, but not C-7 or C-8, positions on the 4-hydroxycoumarin nucleus. After correction for in vivo concentration and protein binding, 10-hydroxywarfarin and warfarin alcohols were predicted to be the most potent inhibitory metabolites in vivo.
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43
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Sánchez-Hernández L, Guijarro-Diez M, Marina ML, Crego AL. New approaches in sensitive chiral CE. Electrophoresis 2013; 35:12-27. [DOI: 10.1002/elps.201300355] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 09/27/2013] [Accepted: 09/27/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Laura Sánchez-Hernández
- Department of Analytical Chemistry; Physical Chemistry and Chemical Engineering, Faculty of Biology, Environmental Sciences and Chemistry, University of Alcalá; Alcalá de Henares Madrid Spain
| | - Miguel Guijarro-Diez
- Department of Analytical Chemistry; Physical Chemistry and Chemical Engineering, Faculty of Biology, Environmental Sciences and Chemistry, University of Alcalá; Alcalá de Henares Madrid Spain
| | - María Luisa Marina
- Department of Analytical Chemistry; Physical Chemistry and Chemical Engineering, Faculty of Biology, Environmental Sciences and Chemistry, University of Alcalá; Alcalá de Henares Madrid Spain
| | - Antonio L. Crego
- Department of Analytical Chemistry; Physical Chemistry and Chemical Engineering, Faculty of Biology, Environmental Sciences and Chemistry, University of Alcalá; Alcalá de Henares Madrid Spain
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44
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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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45
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Chromatographic resolution of closely related species: Separation of warfarin and hydroxylated isomers. J Chromatogr A 2013; 1314:266-75. [DOI: 10.1016/j.chroma.2013.07.092] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Revised: 07/19/2013] [Accepted: 07/23/2013] [Indexed: 11/22/2022]
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46
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Abstract
Capillary electrophoresis (CE) has matured to one of the major liquid phase enantiodifferentiation techniques since the first report in 1985. This can be primarily attributed to the flexibility as well as the various modes available including electrokinetic chromatography (EKC), micellar electrokinetic chromatography (MEKC), and microemulsion electrokinetic chromatography (MEEKC). In contrast to chromatographic techniques, the chiral selector is mobile in the background electrolyte. Furthermore, a large variety of chiral selectors are available that can be easily combined in the same separation system. In addition, the migration order of the enantiomers can be adjusted by a number of approaches. In CE enantiodifferentiations the separation principle is comparable to chromatography while the principle of the movement of the analytes in the capillary is based on electrophoretic phenomena. The present chapter will focus on mechanistic aspects of CE enantioseparations including enantiomer migration order and the current understanding of selector-selectand structures. Selected examples of the basic enantioseparation modes EKC, MEKC, and MEEKC will be discussed.
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Affiliation(s)
- Gerhard K E Scriba
- Department of Pharmaceutical/Medicinal Chemistry, Friedrich Schiller University Jena, Philosophenweg 14, 07743, Jena, Germany,
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