Simplified amperometric detector for capillary electrophoresis

Autor:	Thomas Kappes, Peter C. Hauser
Rok vydání:	1999
Předmět:	Jet (fluid) Auxiliary electrode Working electrode business.industry Chemistry Analytical chemistry Ascorbic acid Biochemistry Potentiostat Analytical Chemistry Electrophoresis Capillary electrophoresis Electrode Electrochemistry Environmental Chemistry Optoelectronics business Spectroscopy
Zdroj:	The Analyst. 124:1035-1039
ISSN:	1364-5528 0003-2654
DOI:	10.1039/a901897b
Popis:	The design of a new amperometric detector for capillary electrophoresis is described. By employing the electrophoretic counter electrode as a polarized pseudo-reference electrode with an appropriate electronic circuitry it was possible to carry out the detection with a single electrode, the working electrode which is mounted in the wall jet arrangement. It is demonstrated that this approach delivers reliable results which are comparable to those obtained with conventional three-electrode potentiostat arrangements. Detection of catecholamines, ascorbic acid, carbohydrates, and heavy metals using different working electrodes is demonstrated, these being examples of possible applications. The simplicity and robustness of the detector cell make it well suited for its use in a field-portable instrument.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::748fd0c6b6c6db10eec31528cd24c710 https://doi.org/10.1039/a901897b Zobrazit plný text záznamu