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Differential Pulse Voltammetric Determination of Selected Nitro‐Compounds on Silver, Solid Silver Composite, and Solid Graphite Composite Electrodes
Author(s) -
Navrátil Tomáš,
Barek Jiří,
FašinováŠebková Světlana
Publication year - 2009
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.200804383
Subject(s) - electrode , graphite , composite number , materials science , differential pulse voltammetry , detection limit , chemically modified electrode , analytical chemistry (journal) , composite material , nuclear chemistry , working electrode , cyclic voltammetry , chemistry , electrochemistry , chromatography
Three different types of solid electrodes, namely silver electrode, silver composite electrode containing 20% (m/m) of silver powder, 20% (m/m) of graphite powder and 60% (m/m) of methacrylate resin and graphite composite electrode containing 30% (m/m) of graphite powder and 70% (m/m) of epoxy resin were tested for differential pulse voltammetric determination of selected genotoxic nitro‐compounds using 2‐nitronaphthalene, 6‐nitroquinoline, and 5‐nitrobenzimidazole as model compounds. It was found that all three electrodes can be used for the determination of micromolar concentrations of tested model substances, the limit of detection and other figures of merits being dependent both on the electrode used and the substance to be determined.