Determination of roxarsone using carbon paste and amberlite LA2 modified carbon paste electrodes

Rahmalan Ahamad, Jiri Barek, A. Rahim Yusoff, Siti Morin Sinaga, Jiri Zima

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)1220-1226
Number of pages7
JournalElectroanalysis
Volume12
Issue number15
DOIs
Publication statusPublished - 16 Dec 2000
Externally publishedYes

Keywords

  • 4-Hydroxy-3-nitrobenzenearsonic acid
  • Amberlite LA2
  • Chemically modified carbon paste electrodes
  • Differential pulse voltammetry
  • Preliminary accumulation
  • Roxarsone

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry

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