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Pulsed amperometric detection based on direct and indirect anodic reactions: A review
Author(s) -
AustinHarrison Deborab S.,
Johnson Dennis C.
Publication year - 1989
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.1140010302
Subject(s) - amperometry , anode , waveform , electrode , adsorption , materials science , noble metal , analytical chemistry (journal) , chemistry , chromatography , electrochemistry , metal , computer science , organic chemistry , telecommunications , radar
Abstract Pulsed amperometric detection (PAD) is applicable for the quantitative detection of numerous organic compounds that adsorb at noble metal electrodes but cannot be detected satisfactorily by conventional amperometry at constant (dc) applied potential. A multistep waveform is applied in PAD with chrono‐amperometric detection based on faradaic signals, which frequently are produced by surface‐controlled reactions. We briefly review applications of PAD for liquid chromatography and present a unified explanation of the various modes of anodic response.