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Li J, Zhang Y, Zhou Y, Bian Y, Hu C, Wang ZH, Feng XS. Haloacetic Acids in the Aquatic Environment. SEPARATION & PURIFICATION REVIEWS 2022. [DOI: 10.1080/15422119.2022.2141649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jie Li
- School of Pharmacy, China Medical University, Shenyang, Liaoning 110122, China
| | - Yuan Zhang
- School of Pharmacy, China Medical University, Shenyang, Liaoning 110122, China
| | - Yu Zhou
- Department of Pharmacy, National Clinical Research Center for Cancer, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, Pei-ching 100021, China
| | - Yu Bian
- School of Pharmacy, China Medical University, Shenyang, Liaoning 110122, China
| | - Cong Hu
- School of Pharmacy, China Medical University, Shenyang, Liaoning 110122, China
| | - Zhi-Hong Wang
- Department of Thyroid Surgery, The First Hospital of China Medical University, Shenyang, Liaoning 110001, China
| | - Xue-Song Feng
- School of Pharmacy, China Medical University, Shenyang, Liaoning 110122, China
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Capillary and microchip electrophoresis with contactless conductivity detection for analysis of foodstuffs and beverages. Food Chem 2021; 375:131858. [PMID: 34923397 DOI: 10.1016/j.foodchem.2021.131858] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 11/29/2021] [Accepted: 12/10/2021] [Indexed: 12/17/2022]
Abstract
The paper provides a comprehensive survey of the use of capillary and microchip electrophoresis in combination with contactless conductivity detection (C4D) for the analysis of drinking water, beverages and foodstuffs. The introduction sets forth the fundamentals of conductivity detection anddescribes an axialC4Dversion. There is also a detailed discussion of the determination of inorganic ions, organic acids, fatty acids, amino acids, amines, carbohydrates, foreign substances and poisons from the standpoint of separation conditions, sample treatment and detection limits. Special attention is paid to the analysis of foodstuffs at microchips with emphasis on the employed material and connection of the microchip with the C4D. The review attempts to draw attention to modern trends, such as dual-opposite injection, field-enhanced sample injection, electromembrane extraction and on-line combination of microdialysis with CE. CE/C4D is characterised by high universality, high speed of analysis, simple sample preparation, small consumption of sample and other chemicals.
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Ferey L, Delaunay N. Food Analysis on Electrophoretic Microchips. SEPARATION AND PURIFICATION REVIEWS 2015. [DOI: 10.1080/15422119.2015.1014049] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Chagas CLS, Costa Duarte L, Lobo-Júnior EO, Piccin E, Dossi N, Coltro WKT. Hand drawing of pencil electrodes on paper platforms for contactless conductivity detection of inorganic cations in human tear samples using electrophoresis chips. Electrophoresis 2015; 36:1837-44. [PMID: 25929980 DOI: 10.1002/elps.201500110] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 03/26/2015] [Accepted: 04/10/2015] [Indexed: 01/29/2023]
Abstract
This paper describes for the first time the fabrication of pencil drawn electrodes (PDE) on paper platforms for capacitively coupled contactless conductivity detection (C(4) D) on electrophoresis microchips. PDE-C(4) D devices were attached on PMMA electrophoresis chips and used for detection of K(+) and Na(+) in human tear samples. PDE-C(4) D devices were produced on office paper and chromatographic paper platforms and their performance were thoroughly investigated using a model mixture containing K(+) , Na(+) , and Li(+) . In comparison with chromatographic paper, PDE-C(4) D fabricated on office paper has exhibited better performance due to its higher electrical conductivity. Furthermore, the detector response was similar to that recorded with electrodes prepared with copper adhesive tape. The fabrication of PDE-C(4) D on office paper has offered great advantages including extremely low cost (< $ 0.004 per unit), reduced fabrication time (< 5 min), and minimal instrumentation (pencil and paper). The proposed electrodes demonstrated excellent analytical performance with good reproducibility. For an inter-PDE comparison (n = 7), the RSD values for migration time, peak area, and separation efficiency were lower than 2.5, 10.5, and 14%, respectively. The LOD's achieved for K(+) , Na(+) , and Li(+) were 4.9, 6.8, and 9.0 μM, respectively. The clinical feasibility of the proposed approach was successfully demonstrated with the quantitative analysis of K(+) and Na(+) in tear samples. The concentration levels found for K(+) and Na(+) were, respectively, 20.8 ± 0.1 mM and 101.2 ± 0.1 mM for sample #1, and 20.4 ± 0.1 mM and 111.4 ± 0.1 mM for sample #2.
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Affiliation(s)
- Cyro L S Chagas
- Instituto de Química, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Lucas Costa Duarte
- Instituto de Química, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | | | - Evandro Piccin
- Departamento de Química, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Nicolò Dossi
- Department of Food Science, University of Udine, Udine, Italy
| | - Wendell K T Coltro
- Instituto de Química, Universidade Federal de Goiás, Goiânia, GO, Brazil.,Instituto Nacional de Ciência e Tecnologia em Bioanalítica (INCTBio), Campinas, SP, Brazil
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Lima RS, Piazzetta MHO, Gobbi AL, Segato TP, Cabral MF, Machado SAS, Carrilho E. Highly sensitive contactless conductivity microchips based on concentric electrodes for flow analysis. Chem Commun (Camb) 2013; 49:11382-4. [DOI: 10.1039/c3cc45797d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Rabanes HR, Guidote AM, Quirino JP. Capillary electrophoresis of natural products: Highlights of the last five years (2006-2010). Electrophoresis 2011; 33:180-95. [DOI: 10.1002/elps.201100223] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Revised: 09/22/2011] [Accepted: 09/22/2011] [Indexed: 12/14/2022]
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Vidal DTR, Augelli MA, Hotta GM, Lopes FS, do Lago CL. Determination of fluoroacetate and fluoride in blood serum by capillary zone electrophoresis using capacitively coupled contactless conductivity detection. Electrophoresis 2011; 32:896-9. [DOI: 10.1002/elps.201000475] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2010] [Revised: 10/21/2010] [Accepted: 10/21/2010] [Indexed: 11/11/2022]
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Herrero M, García-Cañas V, Simo C, Cifuentes A. Recent advances in the application of capillary electromigration methods for food analysis and Foodomics. Electrophoresis 2010; 31:205-28. [PMID: 19967713 DOI: 10.1002/elps.200900365] [Citation(s) in RCA: 142] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The use of capillary electromigration methods to analyze foods and food components is reviewed in this work. Papers that were published during the period April 2007 to March 2009 are included following the previous review by García-Cañas and Cifuentes (Electrophoresis, 2008, 29, 294-309). These works include the analysis of amino acids, biogenic amines, peptides, proteins, DNAs, carbohydrates, phenols, polyphenols, pigments, toxins, pesticides, vitamins, additives, small organic and inorganic ions and other compounds found in foods and beverages, as well as those applications of CE for monitoring food interactions and food processing. The use of microchips, CE-MS, chiral-CE as well as other foreseen trends in food analysis are also discussed including their possibilities in the very new field of Foodomics.
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Affiliation(s)
- Miguel Herrero
- Departamento de Caracterización de Alimentos, Instituto de Fermentaciones Industriales, Madrid 28006, Spain
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Asensio-Ramos M, Hernández-Borges J, Rocco A, Fanali S. Food analysis: A continuous challenge for miniaturized separation techniques. J Sep Sci 2009; 32:3764-800. [DOI: 10.1002/jssc.200900321] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Lu Q, Collins GE. A fritless, EOF microchip pump for high pressure pumping of aqueous and organic solvents. LAB ON A CHIP 2009; 9:954-960. [PMID: 19294307 DOI: 10.1039/b816291c] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A fritless, microchip electroosmotic flow (EOF) pump is microfabricated and demonstrated on a planar soda lime glass substrate to be capable of supplying reasonable flow rates under high back pressures, such as that required for micro-high pressure liquid chromatography (micro-HPLC). The microchip EOF pump is composed of a densely packed microchannel containing 800 nm silica particles and was capable of generating a maximum pressure > 1000 psi ( approximately 7 MPa) and a maximum flow rate of 282 nL/min (aqueous cyclohexylamino alkyl sulfonate (CHES) buffer, 10 mM, pH 9.0, 200 V/cm). Other pumping fluids, such as CHES buffer-acetonitrile mixture (50%, v/v), CHES buffer-methanol mixture (50%, v/v), and pure acetonitrile were also used in a characterization of pump performance that included determinations of the maximum flow rate, maximum pressure, and resulting flow rate against an applied, downstream back pressure. The flow rate under a 200 psi ( approximately 1.4 MPa) back pressure at an applied electric field strength of 250 V/cm ranged from 285 nL/min for aqueous CHES buffer to 44 nL/min for CHES buffer-acetonitrile mixture (50%, v/v), indicating that this EOF pump will meet the future requirements of a micro-HPLC system.
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Affiliation(s)
- Qin Lu
- Naval Research Laboratory, Chemistry Division, Code 6112, 4555 Overlook Ave., S.W., Washington, DC 20375-5342, USA
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Kubáň P, Hauser PC. Ten years of axial capacitively coupled contactless conductivity detection for CZE - a review. Electrophoresis 2009; 30:176-88. [DOI: 10.1002/elps.200800478] [Citation(s) in RCA: 181] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Escarpa A, González MC, López Gil MA, Crevillén AG, Hervás M, García M. Microchips for CE: Breakthroughs in real-world food analysis. Electrophoresis 2008; 29:4852-61. [DOI: 10.1002/elps.200800346] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Gillespie E, Connolly D, Macka M, Hauser P, Paull B. Development of a contactless conductivity detector cell for 1.6 mm O.D. (1/16th inch) HPLC tubing and micro-bore columns with on-column detection. Analyst 2008; 133:1104-10. [DOI: 10.1039/b803038c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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