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Anodic Stripping Voltammetry: An AFM Study of Some Problems and Limitations
Author(s) -
Hyde Michael E.,
Banks Craig E.,
Compton Richard G.
Publication year - 2004
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.200302863
Subject(s) - anodic stripping voltammetry , stripping (fiber) , electrode , voltammetry , anode , cyclic voltammetry , materials science , analytical chemistry (journal) , atomic force microscopy , electrochemistry , chemistry , nanotechnology , chromatography , composite material
The use of anodic stripping voltammetry for quantitative analytical measurements using solid electrodes is addressed in the light of generic limitations arising from i) electrode heterogeneity, ii) electrode morphology, iii) inhibited electrodeposition, and iv) incomplete stripping of deposited metal in the anodic sweep. It is shown, using direct imaging of electrode surfaces via AFM and optical microscopy, that each of the preceding factors may produce significant deviations from ideal electrode behavior. The use of atomic force microscopy to fully characterize any developed ASV procedures is strongly recommended. To ensure reproducible and accurate stripping voltammetry, steps should be taken to minimize the effects discussed.