Voltammetric determination of 2-amino-6-nitrobenzothiazole at two different silver amalgam electrodes

Dana Deýlová, Vlastimil Vyskočil, Jiří Barek

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Voltammetric behavior of genotoxic 2-amino-6-nitrobenzothiazole (ANBT) has been investigated using direct current voltammetry (DCV) and differential pulse voltammetry (DPV) at a polished silver solid amalgam electrode (p-AgSAE) and at a mercury meniscus modified silver solid amalgam electrode (m-AgSAE). The optimum conditions have been found for its determination in the concentration range of 0.2-100 μmol l -1 in a 9:1 (v/v) mixture of aqueous Britton-Robinson buffer solution (pH 10.0) and methanol, with the limits of quantification (L Qs) 0.10 μmol l -1 (DCV at p-AgSAE), 0.19 μmol l -1 (DPV at p-AgSAE), 0.17 μmol l -1 (DCV at m-AgSAE) and 0.12 μmol l -1 (DPV at m-AgSAE). An attempt at increasing the sensitivity using adsorptive stripping DCV or DPV at both p-AgSAE and m-AgSAE was not successful. Practical applicability of the newly developed methods was verified on direct determination of ANBT in spiked samples of drinking and river water, with L Qs ∼ 10 -7 mol l -1.

Original languageEnglish
Pages (from-to)335-340
Number of pages6
JournalElectrochimica Acta
Publication statusPublished - 15 Feb 2012
Externally publishedYes



  • 2-Amino-6-nitrobenzothiazole
  • Drinking and river water samples
  • Mercury meniscus modified silver solid amalgam electrode
  • Polished silver solid amalgam electrode
  • Voltammetry

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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