Capillary electrophoresis methods development and sensitivity enhancement strategies for the separation of industrial and environmental chemicals

This paper focuses on capillary electrophoresis (CE) methods development and sensitivity enhancement strategies for the separation of charged and neutral species of interest to industrial and environmental laboratories. Areas addressed include: (a) free solution and micellar electrokinetic capillary...

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Veröffentlicht in:Journal of Chromatography A Jg. 744; H. 1; S. 123 - 134
Hauptverfasser: McLaughlin, G.M., Weston, A., Hauffe, K.D.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Elsevier B.V 13.09.1996
Schlagworte:
Alkylbenzene sulfonates, linear
Dyes
Method development
Nitro compounds
Organic acids
Pesticides
Phenols
Sensitivity enhancement
Alkylbenzene sulfonates, linear
Dyes
Method development
Pesticides
Phenols
Nitro compounds
Sensitivity enhancement
Organic acids
ISSN:0021-9673
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Zusammenfassung:This paper focuses on capillary electrophoresis (CE) methods development and sensitivity enhancement strategies for the separation of charged and neutral species of interest to industrial and environmental laboratories. Areas addressed include: (a) free solution and micellar electrokinetic capillary chromatography (MECC) methods development strategies; (b) the use of coated capillaries with MECC and reversed polarity to improve separation speed; (c) size separation using a sieving polymer; (d) the use of specific and selective detection techniques to detect environmentally important analytes and metabolites; (e) automated sample concentration techniques to enhance sensitivity by >1000×. Numerous analyte classes are used to illustrate solutions for industrial and environmental problems. These classes include chlorinated phenols, phenoxy acid herbicides, aromatic acids, isomerized α- and β-hop acids, nitroaromatic and nitramine compounds, acidic dyes, linear benzene alkyl sulfonates (LAS), inorganic anions, and charged polymers. Procedures to improve resolution and selectivity are discussed along with methods to enhance sensitivity of detection. Finally, unified methods development strategies to separate and detect analytes in the industrial and environmental setting are described.
ISSN:0021-9673
DOI:10.1016/0021-9673(96)00452-9