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Determination of Roxarsone Using Carbon Paste and Amberlite LA2 Modified Carbon Paste Electrodes
Author(s) -
Ahamad Rahmalan,
Barek Jiri,
Yusoff A. Rahim,
Sinaga Siti Morin,
Zima Jiri
Publication year - 2000
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/1521-4109(200010)12:15<1220::aid-elan1220>3.0.co;2-2
Subject(s) - amberlite , detection limit , carbon paste electrode , differential pulse voltammetry , carbon fibers , chemistry , electrode , electrolyte , nuclear chemistry , materials science , cyclic voltammetry , chromatography , adsorption , electrochemistry , organic chemistry , composite number , composite material
The methods for determination of the growth promoter 4‐hydroxy‐3‐nitrobenzenearsonic acid (Roxarsone) in veterinary product and in poultry drinks have been developed using differential pulse voltammetry with carbon paste and Amberlite LA2 chemically modified carbon paste electrodes. Optimal conditions have been found for Roxarsone determination with nonmodified carbon paste electrodes with limit of determination being 3 µmol L –1 . The sensitivity of the determination was further improved through Amberlite LA2 modification of the carbon paste with limit of determination being 0.1 µmol L –1 . Modification also enabled preliminary accumulation of Roxarsone with the exchange of the supporting electrolyte.