1
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Dhellemmes L, Leclercq L, Höchsmann A, Neusüß C, Biron JP, Roca S, Cottet H. Critical parameters for highly efficient and reproducible polyelectrolyte multilayer coatings for protein separation by capillary electrophoresis. J Chromatogr A 2023; 1695:463912. [PMID: 36972664 DOI: 10.1016/j.chroma.2023.463912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/01/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023]
Abstract
Since the introduction of polyelectrolyte multilayers to protein separation in capillary electrophoresis (CE), some progress has been made to improve separation efficiency by varying different parameters, such as buffer ionic strength and pH, polyelectrolyte nature and number of deposited layers. However, CE is often overlooked as it lacks robustness compared to other separation techniques. In this work, critical parameters for the construction of efficient and reproducible Successive multiple ionic-polymer layers (SMIL) coatings were investigated, focusing on experimental conditions, such as vial preparation and sample conservation which were shown to have a significant impact on separation performances. In addition to repeatability, intra- and inter-capillary precision were assessed, demonstrating the improved capability of poly(diallyldimethylammonium chloride) / poly(sodium styrene sulfonate) (PDADMAC / PSS) coated capillaries to separate model proteins in a 2 M acetic acid background electrolyte when all the correct precautions are put in place (with run to run%RSD(tm) < 1.8%, day to day%RSD(tm) < 3.2% and cap to cap%RSD(tm) < 4.6%). The approach recently introduced to calculate retention factors was used to quantify residual protein adsorption onto the capillary wall and to assess capillary coating performances. 5-layer PDADAMAC / PSS coatings led to average retention factors for the five model proteins of ∼4×10-2. These values suggest a relatively low residual protein adsorption leading to reasonably flat plate height vs linear velocity curves, obtained by performing electrophoretic separations at different electrical voltages (-10 to -25 kV).
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2
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Aerts J, Andrén PE, Jansson ET. Zero-Degree Celsius Capillary Electrophoresis Electrospray Ionization for Hydrogen Exchange Mass Spectrometry. Anal Chem 2022; 95:1149-1158. [PMID: 36546842 PMCID: PMC9850406 DOI: 10.1021/acs.analchem.2c03893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Currently, fast liquid chromatographic separations at low temperatures are exclusively used for the separation of peptides generated in hydrogen deuterium exchange (HDX) workflows. However, it has been suggested that capillary electrophoresis may be a better option for use with HDX. We performed in solution HDX on peptides and bovine hemoglobin (Hb) followed by quenching, pepsin digestion, and cold capillary electrophoretic separation coupled with mass spectrometry (MS) detection for benchmarking a laboratory-built HDX-MS platform. We found that capillaries with a neutral coating to eliminate electroosmotic flow and adsorptive processes provided fast separations with upper limit peak capacities surpassing 170. In contrast, uncoated capillaries achieved 30% higher deuterium retention for an angiotensin II peptide standard owing to faster separations but with only half the peak capacity of coated capillaries. Data obtained using two different separation conditions on peptic digests of Hb showed strong agreement of the relative deuterium uptake between methods. Processed data for denatured versus native Hb after deuterium labeling for the longest timepoint in this study (50,000 s) also showed agreement with subunit interaction sites determined by crystallographic methods. All proteomic data are available under DOI: 10.6019/PXD034245.
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Affiliation(s)
- Jordan
T. Aerts
- Department
of Pharmaceutical Biosciences, Uppsala University, Uppsala751 24, Sweden
| | - Per E. Andrén
- Department
of Pharmaceutical Biosciences, Uppsala University, Uppsala751 24, Sweden,Science
for Life Laboratory, Spatial Mass Spectrometry, Uppsala University, Uppsala751 24, Sweden
| | - Erik T. Jansson
- Department
of Pharmaceutical Biosciences, Uppsala University, Uppsala751 24, Sweden,
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3
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Kašička V. Peptide mapping of proteins by capillary electromigration methods. J Sep Sci 2022; 45:4245-4279. [PMID: 36200755 DOI: 10.1002/jssc.202200664] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/26/2022] [Accepted: 09/26/2022] [Indexed: 12/13/2022]
Abstract
This review article provides a wide overview of important developments and applications of capillary electromigration methods in the area of peptide mapping of proteins in the period 1997-mid-2022, including review articles on this topic. It deals with all major aspects of peptide mapping by capillary electromigration methods: i) precleavage sample preparation involving purification, preconcentration, denaturation, reduction and alkylation of protein(s) to be analyzed, ii) generation of peptide fragments by off-line or on-line enzymatic and/or chemical cleavage of protein(s), iii) postcleavage preparation of the generated peptide mixture for capillary electromigration separation, iv) separation of the complex peptide mixtures by one-, two- and multidimensional capillary electromigration methods coupled with mass spectrometry detection, and v) a large application of peptide mapping for variable purposes, such as qualitative analysis of monoclonal antibodies and other protein biopharmaceuticals, monitoring of posttranslational modifications, determination of primary structure and investigation of function of proteins in biochemical and clinical research, characterization of proteins of variable origin as well as for protein and peptide identification in proteomic and peptidomic studies.
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Affiliation(s)
- Václav Kašička
- Electromigration Methods, The Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague, Czechia
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4
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Pero-Gascon R, Pont L, Giménez E, Sanz-Nebot V, Benavente F. On-line Immobilized Enzyme Microreactor Capillary Zone Electrophoresis-Mass Spectrometry for Peptide Mapping. Methods Mol Biol 2022; 2531:77-91. [PMID: 35941480 DOI: 10.1007/978-1-0716-2493-7_6] [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
Peptide mapping is a routine procedure for protein characterization in proteomics. This bottom-up analysis requires digestion of proteins into peptides before liquid chromatography- or capillary zone electrophoresis-mass spectrometry (LC-MS or CZE-MS, respectively). Proteins are usually digested off-line using proteolytic enzymes, typically trypsin, in solution or immobilized on appropriate supports. As an alternative, here we describe on-line immobilized enzyme microreactor capillary zone electrophoresis-mass spectrometry (IMER-CZE-MS) for a straightforward, rapid, and efficient protein digestion followed by separation, detection, and characterization of the generated peptides.
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Affiliation(s)
- Roger Pero-Gascon
- Department of Chemical Engineering and Analytical Chemistry, Institute for Research on Nutrition and Food Safety (INSA•UB), University of Barcelona, Barcelona, Spain
| | - Laura Pont
- Department of Chemical Engineering and Analytical Chemistry, Institute for Research on Nutrition and Food Safety (INSA•UB), University of Barcelona, Barcelona, Spain
| | - Estela Giménez
- Department of Chemical Engineering and Analytical Chemistry, Institute for Research on Nutrition and Food Safety (INSA•UB), University of Barcelona, Barcelona, Spain
| | - Victoria Sanz-Nebot
- Department of Chemical Engineering and Analytical Chemistry, Institute for Research on Nutrition and Food Safety (INSA•UB), University of Barcelona, Barcelona, Spain
| | - Fernando Benavente
- Department of Chemical Engineering and Analytical Chemistry, Institute for Research on Nutrition and Food Safety (INSA•UB), University of Barcelona, Barcelona, Spain.
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5
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Kuzyk VO, Somsen GW, Haselberg R. CE-MS for Proteomics and Intact Protein Analysis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1336:51-86. [PMID: 34628627 DOI: 10.1007/978-3-030-77252-9_4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
This chapter aims to explore various parameters involved in achieving high-end capillary electrophoresis hyphenated to mass spectrometry (CE-MS) analysis of proteins, peptides, and their posttranslational modifications. The structure of the topics discussed in this book chapter is conveniently mapped on the scheme of the CE-MS system itself, starting from sample preconcentration and injection techniques and finishing with mass analyzer considerations. After going through the technical considerations, a variety of relevant applications for this analytical approach are presented, including posttranslational modifications analysis, clinical biomarker discovery, and its growing use in the biotechnological industry.
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Affiliation(s)
- Valeriia O Kuzyk
- Division of Bioanalytical Chemistry, AIMMS: Amsterdam Institute of Molecular and Life Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Govert W Somsen
- Division of Bioanalytical Chemistry, AIMMS: Amsterdam Institute of Molecular and Life Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Rob Haselberg
- Division of Bioanalytical Chemistry, AIMMS: Amsterdam Institute of Molecular and Life Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
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6
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Capillary Electrophoresis-Mass Spectrometry for Metabolomics: Possibilities and Perspectives. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1336:159-178. [PMID: 34628632 DOI: 10.1007/978-3-030-77252-9_9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Capillary electrophoresis-mass spectrometry (CE-MS) is a very useful analytical technique for the selective and highly efficient profiling of polar and charged metabolites in a wide range of biological samples. Compared to other analytical techniques, the use of CE-MS in metabolomics is relatively low as the approach is still regarded as technically challenging and not reproducible. In this chapter, the possibilities of CE-MS for metabolomics are highlighted with special emphasis on the use of recently developed interfacing designs. The utility of CE-MS for targeted and untargeted metabolomics studies is demonstrated by discussing representative and recent examples in the biomedical and clinical fields. The potential of CE-MS for large-scale and quantitative metabolomics studies is also addressed. Finally, some general conclusions and perspectives are given on this strong analytical separation technique for probing the polar metabolome.
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7
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Hoang Anh N, Min JE, Kim SJ, Phuoc Long N. Biotherapeutic Products, Cellular Factories, and Multiomics Integration in Metabolic Engineering. ACTA ACUST UNITED AC 2020; 24:621-633. [DOI: 10.1089/omi.2020.0112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Nguyen Hoang Anh
- College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Jung Eun Min
- College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Sun Jo Kim
- College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Nguyen Phuoc Long
- Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, South Korea
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8
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Drouin N, van Mever M, Zhang W, Tobolkina E, Ferre S, Servais AC, Gou MJ, Nyssen L, Fillet M, Lageveen-Kammeijer GS, Nouta J, Chetwynd AJ, Lynch I, Thorn JA, Meixner J, Lößner C, Taverna M, Liu S, Tran NT, Francois Y, Lechner A, Nehmé R, Al Hamoui Dit Banni G, Nasreddine R, Colas C, Lindner HH, Faserl K, Neusüß C, Nelke M, Lämmerer S, Perrin C, Bich-Muracciole C, Barbas C, Gonzálvez Á, Guttman A, Szigeti M, Britz-McKibbin P, Kroezen Z, Shanmuganathan M, Nemes P, Portero EP, Hankemeier T, Codesido S, González-Ruiz V, Rudaz S, Ramautar R. Capillary Electrophoresis-Mass Spectrometry at Trial by Metabo-Ring: Effective Electrophoretic Mobility for Reproducible and Robust Compound Annotation. Anal Chem 2020; 92:14103-14112. [PMID: 32961048 PMCID: PMC7581015 DOI: 10.1021/acs.analchem.0c03129] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 09/22/2020] [Indexed: 12/15/2022]
Abstract
Capillary zone electrophoresis-mass spectrometry (CE-MS) is a mature analytical tool for the efficient profiling of (highly) polar and ionizable compounds. However, the use of CE-MS in comparison to other separation techniques remains underrepresented in metabolomics, as this analytical approach is still perceived as technically challenging and less reproducible, notably for migration time. The latter is key for a reliable comparison of metabolic profiles and for unknown biomarker identification that is complementary to high resolution MS/MS. In this work, we present the results of a Metabo-ring trial involving 16 CE-MS platforms among 13 different laboratories spanning two continents. The goal was to assess the reproducibility and identification capability of CE-MS by employing effective electrophoretic mobility (μeff) as the key parameter in comparison to the relative migration time (RMT) approach. For this purpose, a representative cationic metabolite mixture in water, pretreated human plasma, and urine samples spiked with the same metabolite mixture were used and distributed for analysis by all laboratories. The μeff was determined for all metabolites spiked into each sample. The background electrolyte (BGE) was prepared and employed by each participating lab following the same protocol. All other parameters (capillary, interface, injection volume, voltage ramp, temperature, capillary conditioning, and rinsing procedure, etc.) were left to the discretion of the contributing laboratories. The results revealed that the reproducibility of the μeff for 20 out of the 21 model compounds was below 3.1% vs 10.9% for RMT, regardless of the huge heterogeneity in experimental conditions and platforms across the 13 laboratories. Overall, this Metabo-ring trial demonstrated that CE-MS is a viable and reproducible approach for metabolomics.
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Affiliation(s)
- Nicolas Drouin
- Division
of Systems Biomedicine and Pharmacology, Leiden Academic Centre for
Drug Research, Leiden University, 2311 G Leiden, The Netherlands
| | - Marlien van Mever
- Division
of Systems Biomedicine and Pharmacology, Leiden Academic Centre for
Drug Research, Leiden University, 2311 G Leiden, The Netherlands
| | - Wei Zhang
- Division
of Systems Biomedicine and Pharmacology, Leiden Academic Centre for
Drug Research, Leiden University, 2311 G Leiden, The Netherlands
| | - Elena Tobolkina
- School
of Pharmaceutical Sciences, University of
Geneva, Rue Michel Servet 1, 1211 4 Geneva, Switzerland
- Institute
of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Rue Michel Servet 1, 1211 4 Geneva, Switzerland
| | - Sabrina Ferre
- School
of Pharmaceutical Sciences, University of
Geneva, Rue Michel Servet 1, 1211 4 Geneva, Switzerland
- Institute
of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Rue Michel Servet 1, 1211 4 Geneva, Switzerland
| | - Anne-Catherine Servais
- Laboratory
for the Analysis of Medicines, Center for Interdisciplinary Research
on Medicines (CIRM), University of Liège, Avenue Hippocrate 15, B-4000 Liège, Belgium
| | - Marie-Jia Gou
- Laboratory
for the Analysis of Medicines, Center for Interdisciplinary Research
on Medicines (CIRM), University of Liège, Avenue Hippocrate 15, B-4000 Liège, Belgium
| | - Laurent Nyssen
- Laboratory
for the Analysis of Medicines, Center for Interdisciplinary Research
on Medicines (CIRM), University of Liège, Avenue Hippocrate 15, B-4000 Liège, Belgium
- Department
of Clinical Chemistry, Center for Interdisciplinary Research on Medicines
(CIRM), University of Liège, Avenue Hippocrate 15, B-4000 Liège, Belgium
| | - Marianne Fillet
- Laboratory
for the Analysis of Medicines, Center for Interdisciplinary Research
on Medicines (CIRM), University of Liège, Avenue Hippocrate 15, B-4000 Liège, Belgium
| | | | - Jan Nouta
- Leiden University
Medical Center, Center for Proteomics
and Metabolomics, 2300 RC Leiden, The Netherlands
| | - Andrew J. Chetwynd
- School
of Geography Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.
| | - Iseult Lynch
- School
of Geography Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.
| | - James A. Thorn
- AB
Sciex UK Ltd, Phoenix House, Lakeside Drive, Warrington, Cheshire WA1 1RX, U.K.
| | - Jens Meixner
- Agilent
Technologies R&D and Marketing GmbH & Co. KG, Hewlett-Packard-Straße 8, 76337 Waldbronn, Germany
| | | | - Myriam Taverna
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92296 Châtenay-Malabry, France
- Institut Universitaire de France, 1 Rue Descartes, 75231 CEDEX 05 Paris, France
| | - Sylvie Liu
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92296 Châtenay-Malabry, France
| | - N. Thuy Tran
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92296 Châtenay-Malabry, France
| | - Yannis Francois
- Laboratoire
de Spectromètrie de Masse des Interactions et des Systémes
(LSMIS) UMR 7140 (Unistra-CNRS), Université
de Strasbourg, 4 Rue Blaise Pascal, 67081 CEDEX Strasbourg, France
| | - Antony Lechner
- Laboratoire
de Spectromètrie de Masse des Interactions et des Systémes
(LSMIS) UMR 7140 (Unistra-CNRS), Université
de Strasbourg, 4 Rue Blaise Pascal, 67081 CEDEX Strasbourg, France
| | - Reine Nehmé
- Institut
de Chimie Organique et Analytique (ICOA), CNRS FR 2708 - UMR 7311, Université d’Orléans, 45067 Orléans, France
| | - Ghassan Al Hamoui Dit Banni
- Institut
de Chimie Organique et Analytique (ICOA), CNRS FR 2708 - UMR 7311, Université d’Orléans, 45067 Orléans, France
| | - Rouba Nasreddine
- Institut
de Chimie Organique et Analytique (ICOA), CNRS FR 2708 - UMR 7311, Université d’Orléans, 45067 Orléans, France
| | - Cyril Colas
- Institut
de Chimie Organique et Analytique (ICOA), CNRS FR 2708 - UMR 7311, Université d’Orléans, 45067 Orléans, France
- Centre de Biophysique Moléculaire,
CNRS-Université
d’Orléans, UPR 4311, 45071 CEDEX 2 Orléans, France
| | - Herbert H. Lindner
- Institute
of Clinical Biochemistry, Innsbruck Medical
University, Innrain 80-82, A-6020 Innsbruck, Austria
| | - Klaus Faserl
- Institute
of Clinical Biochemistry, Innsbruck Medical
University, Innrain 80-82, A-6020 Innsbruck, Austria
| | - Christian Neusüß
- Faculty
of Chemistry, Aalen University, Beethovenstraße 1, 73430 Aalen, Germany
| | - Manuel Nelke
- Faculty
of Chemistry, Aalen University, Beethovenstraße 1, 73430 Aalen, Germany
| | - Stefan Lämmerer
- Faculty
of Chemistry, Aalen University, Beethovenstraße 1, 73430 Aalen, Germany
| | - Catherine Perrin
- Institut
des Biomolécules Max Mousseron (IBMM), UMR 5247-CNRS-UM-ENSCM, Université de Montpellier, 34093 CEDEX 5 Montpellier, France
| | - Claudia Bich-Muracciole
- Institut
des Biomolécules Max Mousseron (IBMM), UMR 5247-CNRS-UM-ENSCM, Université de Montpellier, 34093 CEDEX 5 Montpellier, France
| | - Coral Barbas
- Centre
for Metabolomics and Bioanalysis (CEMBIO), Department of Chemistry
and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización
Montepríncipe, Boadilladel
Monte 28660, Madrid, Spain
| | - Ángeles
López Gonzálvez
- Centre
for Metabolomics and Bioanalysis (CEMBIO), Department of Chemistry
and Biochemistry, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización
Montepríncipe, Boadilladel
Monte 28660, Madrid, Spain
| | - Andras Guttman
- Horváth
Csaba Memorial Laboratory of Bioseparation Sciences, Research Center
for Molecular Medicine, Faculty of Medicine, Doctoral School of Molecular
Medicine, University of Debrecen, 98 Nagyerdei Road, H-4032 Debrecen, Hungary
- Translation
Glycomics Group, Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, 10 Egyetem Street, Veszprem H-8200, Hungary
- Sciex, 250 South Kraemer Boulevard, Brea, California 92821, United States
| | - Marton Szigeti
- Horváth
Csaba Memorial Laboratory of Bioseparation Sciences, Research Center
for Molecular Medicine, Faculty of Medicine, Doctoral School of Molecular
Medicine, University of Debrecen, 98 Nagyerdei Road, H-4032 Debrecen, Hungary
- Translation
Glycomics Group, Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, 10 Egyetem Street, Veszprem H-8200, Hungary
| | - Philip Britz-McKibbin
- Department
of Chemistry and Chemical Biology, McMaster
University, 1280 Main St. W., Hamilton, Ontario L8S 4M1, Canada
| | - Zachary Kroezen
- Department
of Chemistry and Chemical Biology, McMaster
University, 1280 Main St. W., Hamilton, Ontario L8S 4M1, Canada
| | - Meera Shanmuganathan
- Department
of Chemistry and Chemical Biology, McMaster
University, 1280 Main St. W., Hamilton, Ontario L8S 4M1, Canada
| | - Peter Nemes
- Department
of Chemistry & Biochemistry, University
of Maryland, College
Park, Maryland 20742, United States
| | - Erika P. Portero
- Department
of Chemistry & Biochemistry, University
of Maryland, College
Park, Maryland 20742, United States
| | - Thomas Hankemeier
- Division
of Systems Biomedicine and Pharmacology, Leiden Academic Centre for
Drug Research, Leiden University, 2311 G Leiden, The Netherlands
| | - Santiago Codesido
- School
of Pharmaceutical Sciences, University of
Geneva, Rue Michel Servet 1, 1211 4 Geneva, Switzerland
- Institute
of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Rue Michel Servet 1, 1211 4 Geneva, Switzerland
| | - Víctor González-Ruiz
- School
of Pharmaceutical Sciences, University of
Geneva, Rue Michel Servet 1, 1211 4 Geneva, Switzerland
- Institute
of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Rue Michel Servet 1, 1211 4 Geneva, Switzerland
- Swiss Centre for Applied Human Toxicology
(SCAHT), Missionsstrasse
64, 4055 Bâle, Switzerland
| | - Serge Rudaz
- School
of Pharmaceutical Sciences, University of
Geneva, Rue Michel Servet 1, 1211 4 Geneva, Switzerland
- Institute
of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Rue Michel Servet 1, 1211 4 Geneva, Switzerland
- Swiss Centre for Applied Human Toxicology
(SCAHT), Missionsstrasse
64, 4055 Bâle, Switzerland
| | - Rawi Ramautar
- Division
of Systems Biomedicine and Pharmacology, Leiden Academic Centre for
Drug Research, Leiden University, 2311 G Leiden, The Netherlands
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9
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Pero-Gascon R, Giménez E, Sanz-Nebot V, Benavente F. Enrichment of histidine containing peptides by on-line immobilised metal affinity solid-phase extraction capillary electrophoresis-mass spectrometry. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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10
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Le-Minh V, Tran N, Makky A, Rosilio V, Taverna M, Smadja C. Capillary zone electrophoresis-native mass spectrometry for the quality control of intact therapeutic monoclonal antibodies. J Chromatogr A 2019; 1601:375-384. [DOI: 10.1016/j.chroma.2019.05.050] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/18/2019] [Accepted: 05/26/2019] [Indexed: 01/27/2023]
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11
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On-line protein digestion by immobilized enzyme microreactor capillary electrophoresis-mass spectrometry. Talanta 2019; 199:116-123. [DOI: 10.1016/j.talanta.2019.02.039] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 02/07/2019] [Accepted: 02/08/2019] [Indexed: 12/31/2022]
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12
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Application of Capillary Electrophoresis with Laser-Induced Fluorescence to Immunoassays and Enzyme Assays. Molecules 2019; 24:molecules24101977. [PMID: 31121978 PMCID: PMC6571882 DOI: 10.3390/molecules24101977] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 05/20/2019] [Accepted: 05/21/2019] [Indexed: 02/07/2023] Open
Abstract
Capillary electrophoresis using laser-induced fluorescence detection (CE-LIF) is one of the most sensitive separation tools among electrical separation methods. The use of CE-LIF in immunoassays and enzyme assays has gained a reputation in recent years for its high detection sensitivity, short analysis time, and accurate quantification. Immunoassays are bioassay platforms that rely on binding reactions between an antigen (analyte) and a specific antibody. Enzyme assays measure enzymatic activity through quantitative analysis of substrates and products by the reaction of enzymes in purified enzyme or cell systems. These two category analyses play an important role in the context of biopharmaceutical analysis, clinical therapy, drug discovery, and diagnosis analysis. This review discusses the expanding portfolio of immune and enzyme assays using CE-LIF and focuses on the advantages and disadvantages of these methods over the ten years of existing technology since 2008.
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13
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Gahoual R, Leize-Wagner E, Houzé P, François YN. Revealing the potential of capillary electrophoresis/mass spectrometry: the tipping point. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2019; 33 Suppl 1:11-19. [PMID: 30022554 DOI: 10.1002/rcm.8238] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/04/2018] [Accepted: 07/11/2018] [Indexed: 06/08/2023]
Abstract
The hyphenation of capillary electrophoresis and mass spectrometry (CE/MS) remains a minor technique compared with liquid chromatography/mass spectrometry (LC/MS), which represents nowadays the standard instrumentation, regardless of its introduction thirty years ago. However, from a theoretical point of view, CE coupling should be quite favorable especially with electrospray ionization mass spectrometry (ESI-MS). At the time, the sensitivity provided by CE/MS was often limited, due to hyphenation requirements, which at some point appeared to disqualify CE/MS from benefiting from the performance gain driving the evolution of MS instruments. However, this context has been significantly modified in a matter of a few years. The development of innovative CE/MS interfacing systems has enabled an important improvement regarding sensitivity and reinforced robustness in order to provide an instrumentation accessible to the largest scientific community. Because of the unique selectivity delivered by the electrophoretic separation, CE/MS has proved to be particularly relevant for the analysis of biological molecules. The conjunction of these aspects is motivating the interest in CE/MS analysis and shows that CE/MS is mature enough to enrich the toolbox of analytical techniques for the analysis of complex biological samples. Here we discuss the characteristics of the major types of high-sensitivity CE/ESI-MS instrumentation and emphasize the late evolution and future positioning of CE/MS analysis for the characterization of biological molecules like peptides and proteins, through some pertinent applications.
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Affiliation(s)
- Rabah Gahoual
- Unité de Technologies Biologiques et Chimiques pour la Santé (UTCBS), Paris 5-CNRS UMR8258 Inserm U1022, Faculté de Pharmacie, Université Paris Descartes, Paris, France
| | - Emmanuelle Leize-Wagner
- Laboratoire de spectrométrie de masse des interactions et des systèmes (LSMIS), Unistra-CNRS UMR7140, Université de Strasbourg, Strasbourg, France
| | - Pascal Houzé
- Unité de Technologies Biologiques et Chimiques pour la Santé (UTCBS), Paris 5-CNRS UMR8258 Inserm U1022, Faculté de Pharmacie, Université Paris Descartes, Paris, France
- Laboratoire de Biochimie, Hôpital Universitaire Necker-Enfants malades, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Yannis-Nicolas François
- Laboratoire de spectrométrie de masse des interactions et des systèmes (LSMIS), Unistra-CNRS UMR7140, Université de Strasbourg, Strasbourg, France
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14
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Zhang W, Hankemeier T, Ramautar R. Capillary Electrophoresis-Mass Spectrometry for Metabolic Profiling of Biomass-Limited Samples. Methods Mol Biol 2019; 1972:165-172. [PMID: 30847790 DOI: 10.1007/978-1-4939-9213-3_11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Capillary electrophoresis-mass spectrometry (CE-MS) is a strong separation technique for the highly efficient and selective analysis of polar and charged metabolites in biological samples. The CE approach is especially suited for the analysis of limited sample amounts due to its nanoliter injections from only a few microliters of material in the sample injection vial. In this protocol, a CE-MS strategy is outlined for the profiling of cationic metabolites in biomass-limited samples using a small amount of human hepatocellular carcinoma (HepG2) cells as a model system. By employing a sheathless interfacing design for coupling CE to MS, it is shown that information-rich profiles for cationic metabolites can be obtained when working with a starting amount of 10,000 HepG2 cells and even lower. Overall, the proposed CE-MS-based analytical workflow may be considered a useful tool for biomass-limited metabolomics studies.
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Affiliation(s)
- Wei Zhang
- Biomedical Microscale Analytics, Leiden Academic Center for Drug Research, Leiden University, Leiden, The Netherlands
| | - Thomas Hankemeier
- Biomedical Microscale Analytics, Leiden Academic Center for Drug Research, Leiden University, Leiden, The Netherlands
| | - Rawi Ramautar
- Biomedical Microscale Analytics, Leiden Academic Center for Drug Research, Leiden University, Leiden, The Netherlands.
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15
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Pero-Gascon R, Pont L, Sanz-Nebot V, Benavente F. On-Line Immunoaffinity Solid-Phase Extraction Capillary Electrophoresis-Mass Spectrometry for the Analysis of Serum Transthyretin. Methods Mol Biol 2019; 1972:57-76. [PMID: 30847784 DOI: 10.1007/978-1-4939-9213-3_5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The analysis of low abundant proteins in biological fluids by capillary electrophoresis (CE) is particularly problematic due to the typically poor concentration limits of detection of microscale separation techniques. Another important issue is sample matrix complexity that requires an appropriate cleanup. Here, we describe an on-line immunoaffinity solid-phase extraction capillary electrophoresis-mass spectrometry (IA-SPE-CE-MS) method for the immunoextraction, preconcentration, separation, detection, and characterization of serum transthyretin (TTR). TTR is a protein biomarker related to diverse types of amyloidosis, such as familial amyloidotic polyneuropathy type I (FAP-I), which is the most common hereditary systemic amyloidosis.
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Affiliation(s)
- Roger Pero-Gascon
- Department of Chemical Engineering and Analytical Chemistry, Institute for Research on Nutrition and Food Safety (INSA·UB), University of Barcelona, Barcelona, Spain
| | - Laura Pont
- Department of Chemical Engineering and Analytical Chemistry, Institute for Research on Nutrition and Food Safety (INSA·UB), University of Barcelona, Barcelona, Spain
| | - Victoria Sanz-Nebot
- Department of Chemical Engineering and Analytical Chemistry, Institute for Research on Nutrition and Food Safety (INSA·UB), University of Barcelona, Barcelona, Spain.
| | - Fernando Benavente
- Department of Chemical Engineering and Analytical Chemistry, Institute for Research on Nutrition and Food Safety (INSA·UB), University of Barcelona, Barcelona, Spain
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16
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Shulman L, Pei L, Bahnasy MF, Lucy CA. High pH instability of quaternary ammonium surfactant coatings in capillary electrophoresis. Analyst 2018; 142:2145-2151. [PMID: 28524193 DOI: 10.1039/c7an00330g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The two-tailed cationic surfactant dioctadecyldimethyl ammonium bromide (DODAB) produces semi-permanent coatings that yield strongly reversed electroosmotic flow (EOF), for example -0.31 ± 0.01 cm2 kV-1 s-1 at pH 3.5. Moreover, these coatings are easy to prepare, regenerable, cost effective, and yield high efficiency (520 000-900 000 plates per m) separations of cationic proteins over many runs under acidic (pH 3.5) conditions. Given the quaternary amine functionality of DODAB, we were surprised to observe that DODAB coatings become unstable at pH > 7. At pH 7.2, the EOF of a DODAB coated capillary drifted from reversed to cathodic over only 5 runs, and protein separations became severely compromised. By pH 12, no EOF reversal was observed. Electrophoretic and mass spectrometric studies demonstrate that the coating decomposition involves a surface conversion of the quaternary amine in DODAB to a variety of products, although the exact mechanism remains elusive. Regardless, the results herein demonstrate that semi-permanent coatings based on cationic two-tailed surfactants such as DODAB are limited to separations using acidic buffers.
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Affiliation(s)
- Lisa Shulman
- Department of Chemistry, Gunning/Lemieux Chemistry Centre, University of Alberta, Edmonton, AB, Canada T6G 2G2.
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17
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González-Ruiz V, Gagnebin Y, Drouin N, Codesido S, Rudaz S, Schappler J. ROMANCE: A new software tool to improve data robustness and feature identification in CE-MS metabolomics. Electrophoresis 2018; 39:1222-1232. [DOI: 10.1002/elps.201700427] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 12/14/2017] [Accepted: 12/14/2017] [Indexed: 12/17/2022]
Affiliation(s)
- Víctor González-Ruiz
- School of Pharmaceutical Sciences; University of Geneva; University of Lausanne; Geneva Switzerland
| | - Yoric Gagnebin
- School of Pharmaceutical Sciences; University of Geneva; University of Lausanne; Geneva Switzerland
| | - Nicolas Drouin
- School of Pharmaceutical Sciences; University of Geneva; University of Lausanne; Geneva Switzerland
| | | | - Serge Rudaz
- School of Pharmaceutical Sciences; University of Geneva; University of Lausanne; Geneva Switzerland
| | - Julie Schappler
- School of Pharmaceutical Sciences; University of Geneva; University of Lausanne; Geneva Switzerland
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18
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Voeten RLC, Ventouri IK, Haselberg R, Somsen GW. Capillary Electrophoresis: Trends and Recent Advances. Anal Chem 2018; 90:1464-1481. [PMID: 29298038 PMCID: PMC5994730 DOI: 10.1021/acs.analchem.8b00015] [Citation(s) in RCA: 185] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Robert L C Voeten
- Division of BioAnalytical Chemistry, Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam , de Boelelaan 1085, 1081 HV Amsterdam, The Netherlands.,TI-COAST , Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Iro K Ventouri
- TI-COAST , Science Park 904, 1098 XH Amsterdam, The Netherlands.,Analytical Chemistry Group, van't Hoff Institute for Molecular Sciences, University of Amsterdam , Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Rob Haselberg
- Division of BioAnalytical Chemistry, Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam , de Boelelaan 1085, 1081 HV Amsterdam, The Netherlands
| | - Govert W Somsen
- Division of BioAnalytical Chemistry, Department of Chemistry and Pharmaceutical Sciences, Vrije Universiteit Amsterdam , de Boelelaan 1085, 1081 HV Amsterdam, The Netherlands
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19
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Kašička V. Recent developments in capillary and microchip electroseparations of peptides (2015-mid 2017). Electrophoresis 2017; 39:209-234. [PMID: 28836681 DOI: 10.1002/elps.201700295] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 08/15/2017] [Accepted: 08/16/2017] [Indexed: 12/17/2022]
Abstract
The review brings a comprehensive overview of recent developments and applications of high performance capillary and microchip electroseparation methods (zone electrophoresis, isotachophoresis, isoelectric focusing, affinity electrophoresis, electrokinetic chromatography, and electrochromatography) to analysis, microscale isolation, purification, and physicochemical and biochemical characterization of peptides in the years 2015, 2016, and ca. up to the middle of 2017. Advances in the investigation of electromigration properties of peptides and in the methodology of their analysis (sample preseparation, preconcentration and derivatization, adsorption suppression and EOF control, and detection) are described. New developments in particular CE and CEC methods are presented and several types of their applications to peptide analysis are reported: qualitative and quantitative analysis, determination in complex (bio)matrices, monitoring of chemical and enzymatical reactions and physical changes, amino acid, sequence and chiral analysis, and peptide mapping of proteins. Some micropreparative peptide separations are shown and capabilities of CE and CEC methods to provide important physicochemical characteristics of peptides are demonstrated.
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Affiliation(s)
- Václav Kašička
- Institute of Organic Chemistry and Biochemistry, The Czech Academy of Sciences, Prague, Czech Republic
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20
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Ciura K, Pawelec A, Buszewska-Forajta M, Markuszewski MJ, Nowakowska J, Prahl A, Wielgomas B, Dziomba S. Evaluation of sample injection precision in respect to sensitivity in capillary electrophoresis using various injection modes. J Sep Sci 2017; 40:1167-1175. [PMID: 27995749 DOI: 10.1002/jssc.201601027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 11/11/2016] [Accepted: 12/05/2016] [Indexed: 12/26/2022]
Abstract
A comparative study was conducted to assess the injection precision in capillary electrophoresis for cationic analytes (arecoline, codeine, papaverine). The precision was measured in respect to methods sensitivity in various injection modes in capillary electrophoresis: standard hydrodynamic injection (3.45 kPa for 6 s), large volume sample stacking (3.45 kPa for 40 s), and field-amplified sample injection (10 kV for 65 s). All measurements were conducted for aqueous solutions of standards to minimize the errors linked to the sample preparation step. The methods were submitted to precision assessment at three concentration levels: at the limit of quantification, three-fold and ten-fold of limit of quantification. The results were compared to those from high-performance liquid chromatography as a reference technique. The field-amplified sample injection method was shown to provide greatest sensitivity (quantification limits down to 4 ng/mL for all three tested compounds) but the lowest precision. High-performance liquid chromatography was established as the most reliable technique (coefficient of variation in all intraday experiments was below 1%). It was also shown that with a use of large volume sample injection technique, similar sensitivity as in high-performance liquid chromatography can be easily reached.
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Affiliation(s)
- Krzesimir Ciura
- Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
| | - Aleksandra Pawelec
- Department of Toxicology, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
| | - Magdalena Buszewska-Forajta
- Department of Biopharmaceutics and Pharmacodynamics, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
| | - Michał Jan Markuszewski
- Department of Biopharmaceutics and Pharmacodynamics, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
| | - Joanna Nowakowska
- Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
| | - Adam Prahl
- Institute of Organic Synthesis, Department of Organic Chemistry, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | - Bartosz Wielgomas
- Department of Toxicology, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
| | - Szymon Dziomba
- Department of Toxicology, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
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21
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Tascon M, Gagliardi LG, Benavente F. Parts-per-trillion detection of harmala alkaloids in Undaria pinnatifida algae by on-line solid phase extraction capillary electrophoresis mass spectrometry. Anal Chim Acta 2017; 954:60-67. [PMID: 28081815 DOI: 10.1016/j.aca.2016.12.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 12/02/2016] [Accepted: 12/09/2016] [Indexed: 01/09/2023]
Abstract
β-carboline alkaloids of the harmala group (HAlks)-a family of compounds with pharmacologic effects-can be found at trace levels (<25 μg kg-1 algae) in the edible invasive algae Undaria pinnatifida, known commonly as wakame. In this study, we present a simple and sensitive method to detect and quantify at low parts-per-trillion levels the six HAlks more frequently found in those plants. The method is based on on-line solid phase extraction capillary electrophoresis mass spectrometry using a C18 sorbent. First, the methodology was optimized and validated with standard solutions through the use of ultraviolet (UV) and mass spectrometry (MS) detection. Second, the optimized method for MS detection was applied to an analysis of the HAlks in U. pinnatifida extracts. The method achieved limits of detection between 2 and 77 pg mL-1 for standards, producing an analyte preconcentration of about 1000-times in comparison to CE-MS. Some matrix effects were observed for the complex wakame extracts, especially for the most polar HAlks (harmol and harmalol), which bear aromatic hydroxyl groups. Harmine, harmaline, and norharmane were not detected in the algal extracts, whereas harmane was found at 70 pg mL-1 (70 ng kg-1 dry algae). The results underscored that C18-SPE-CE-MS may be considered as a powerful method to detect trace levels of alkaloids and other bioactive small molecules in complex plant extracts.
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Affiliation(s)
- Marcos Tascon
- Laboratorio de Investigación y Desarrollo de Métodos Analíticos (LIDMA), División Química Analítica, CONICET, Universidad Nacional de La Plata, Argentina
| | - Leonardo G Gagliardi
- Laboratorio de Investigación y Desarrollo de Métodos Analíticos (LIDMA), División Química Analítica, CONICET, Universidad Nacional de La Plata, Argentina
| | - Fernando Benavente
- Departament d'Enginyeria Química i Química Analítica, Nutrition and Food Safety Research Institute (INSA-UB), Universitat de Barcelona, Barcelona, Spain.
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22
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Stock LG, Leitner M, Traxler L, Bonazza K, Leclercq L, Cottet H, Friedbacher G, Ebner A, Stutz H. Advanced portrayal of SMIL coating by allying CZE performance with in-capillary topographic and charge-related surface characterization. Anal Chim Acta 2017; 951:1-15. [DOI: 10.1016/j.aca.2016.10.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 10/22/2016] [Indexed: 10/20/2022]
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23
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Týčová A, Ledvina V, Klepárník K. Recent advances in CE-MS coupling: Instrumentation, methodology, and applications. Electrophoresis 2016; 38:115-134. [DOI: 10.1002/elps.201600366] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 08/30/2016] [Accepted: 08/30/2016] [Indexed: 12/17/2022]
Affiliation(s)
- Anna Týčová
- Institute of Analytical Chemistry; Czech Academy of Sciences; Brno Czech Republic
| | - Vojtěch Ledvina
- Institute of Analytical Chemistry; Czech Academy of Sciences; Brno Czech Republic
| | - Karel Klepárník
- Institute of Analytical Chemistry; Czech Academy of Sciences; Brno Czech Republic
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24
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Yamamoto M, Ly R, Gill B, Zhu Y, Moran-Mirabal J, Britz-McKibbin P. Robust and High-Throughput Method for Anionic Metabolite Profiling: Preventing Polyimide Aminolysis and Capillary Breakages under Alkaline Conditions in Capillary Electrophoresis-Mass Spectrometry. Anal Chem 2016; 88:10710-10719. [DOI: 10.1021/acs.analchem.6b03269] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Mai Yamamoto
- Department of Chemistry and
Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - Ritchie Ly
- Department of Chemistry and
Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - Biban Gill
- Department of Chemistry and
Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - Yujie Zhu
- Department of Chemistry and
Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - Jose Moran-Mirabal
- Department of Chemistry and
Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada
| | - Philip Britz-McKibbin
- Department of Chemistry and
Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada
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25
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Štěpánová S, Kašička V. Recent applications of capillary electromigration methods to separation and analysis of proteins. Anal Chim Acta 2016; 933:23-42. [DOI: 10.1016/j.aca.2016.06.006] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 05/10/2016] [Accepted: 06/03/2016] [Indexed: 10/21/2022]
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26
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Peró-Gascón R, Pont L, Benavente F, Barbosa J, Sanz-Nebot V. Analysis of serum transthyretin by on-line immunoaffinity solid-phase extraction capillary electrophoresis mass spectrometry using magnetic beads. Electrophoresis 2016; 37:1220-31. [DOI: 10.1002/elps.201500495] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 01/12/2016] [Accepted: 01/21/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Roger Peró-Gascón
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
| | - Laura Pont
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
| | - Fernando Benavente
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
| | - José Barbosa
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
| | - Victoria Sanz-Nebot
- Department of Analytical Chemistry; University of Barcelona; Barcelona Spain
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27
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Fekete S, Guillarme D, Sandra P, Sandra K. Chromatographic, Electrophoretic, and Mass Spectrometric Methods for the Analytical Characterization of Protein Biopharmaceuticals. Anal Chem 2015; 88:480-507. [DOI: 10.1021/acs.analchem.5b04561] [Citation(s) in RCA: 171] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Szabolcs Fekete
- School
of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Boulevard d’Yvoy 20, 1211 Geneva 4, Switzerland
| | - Davy Guillarme
- School
of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Boulevard d’Yvoy 20, 1211 Geneva 4, Switzerland
| | - Pat Sandra
- Research Institute for Chromatography (RIC), President Kennedypark 26, 8500 Kortrijk, Belgium
| | - Koen Sandra
- Research Institute for Chromatography (RIC), President Kennedypark 26, 8500 Kortrijk, Belgium
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