Achievement of the analytically ideal steady-state response at a microelectrode-based scanning electrochemical detector under flow injection analysis and normal-phase chromatography conditions

Autor:	Barry L. Reed, Russell John Tait, Barrie C. Finnin, Alan M. Bond, Peter C. Bury
Rok vydání:	1993
Předmět:	Flow injection analysis Microelectrode Steady state (electronics) Chemistry Electrode Detector Analytical chemistry High-performance liquid chromatography Voltammetry Analytical Chemistry Volumetric flow rate
Zdroj:	Analytical Chemistry. 65:3252-3257
ISSN:	1520-6882 0003-2700
DOI:	10.1021/ac00070a014
Popis:	A study of the one-electron reversible ferrocene oxidation process has been made under both flow injection analysis and normal-phase chromatography conditions in a thin-layer flow cell with a rapid-scanning microelectrode-based detector. A flow rate of 1.0 mL min -1 , scan rates in the range of 2-10 V s -1 , and platinum disk microelectrodes of radii in the range 5-50 μm enable voltammograms with the theoretically predicted steady-state caracteristics to be obtained. Ready access to the analytically ideal steady-state response and to electrode process characterization coupled with other advantages available with microelectrodes provides the rapid-scanning microelectrode-based detector with substantial advantages over many of the more commonly used forms of electrochemical detection
Databáze:	OpenAIRE
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