Authors: Ali Asghar Ensafi, Adam C Ring, Ingrid Fritsch

Publication date: 2010/6/1

Journal name: Electroanalysis

Volume: 22

Pages: 1175-1185

Publisher: WILEY‐VCH Verlag

Abstract A simple, fast, reproducible (2.5% RSD at 3.0 μg/L), and sensitive method is
described for quantifying As (III)(0.3 μg/L detection limit, 0.5–440 μg/L dynamic range).
Anodic stripping voltammetry (ASV) is performed after accumulating arsenic at a mercury
film electrode at− 0.350 V vs. Ag/AgCl (saturated KCl) for 20 s in 0.2 M HCl containing 8 μM
ammonium 2-amino-1-cyclopentene-1-dithiocarboxylate (AACD), without oxygen removal.
This is the first report of using AACD in ASV and in electrochemical quantification of As (III) ...