Use of poly(ester-sulfonic acid) film-coated electrodes as amperometric detectors in flow injection analysis

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Title: Use of poly(ester-sulfonic acid) film-coated electrodes as amperometric detectors in flow injection analysis
Author: Gennett, Thomas; Rusin, W.; Gier, L.
Abstract: Within the past several years significant advances have been made towards the development and incorporation of chemically modified electrodes as selective detectors for high performance liquid chromatography and flow injection analysis. In many cases the chemically modified electrode systems closely approach the ''ideal'' detector specifications of chemical and mechanical stability along with a significant linear response region. This paper will discuss the characterization and incorporation of ionomeric poly(ester-sulfonic acid) coated electrodes as nonaqueous electrochemical detectors. The orientation of the electrodes in the detector system as well as the increased sensitivity levels to 10-10 g ml-1 for cationic species and 10-9 g ml-1 for neutral species will be presented. Also the applicability of the ionomer coated electrodes as nonelectrolyte detectors achieved a reproducible response with detection limits to 10-6 g ml-1. Overall this system performed as well as, or better than, more specialized and expensive thin layer electrochemical detectors.
Record URI: http://hdl.handle.net/1850/2251
Publishers URL: http://dx.doi.org/10.1016/0039-9140(95)01689-9
Date: 1995-12

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