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The effect of a nonadsorbing electroactive species on the transition time in derivative adsorptive chronopotentiometric stripting analysis
Author(s) -
Honeychurch Michael J.,
Ridd Michael J.
Publication year - 1995
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.1140071109
Subject(s) - adsorption , electrode , chemistry , drop (telecommunication) , dropping mercury electrode , cystine , derivative (finance) , inorganic chemistry , redox , transition metal , cysteine , analytical chemistry (journal) , electrochemistry , chromatography , catalysis , organic chemistry , telecommunications , computer science , financial economics , economics , enzyme
A theory to describe the enhancement of the transition time and change in peak shape for the chronopotentiometric reduction of an adsorbed species caused by the reduction of an electroactive diffusing species is presented. The equations were derived for planar, cylindrical and spherical electrodes and verified for the chronopotentiometric reduction of adsorbed cystine, as mercurous cysteine thiolate, on a hanging mercury drop electrode in the presence of dissolved oxygen.