Enhanced Cathodic Preconcentration of As(0) at Au and Pt Electrodes for Anodic Stripping Voltammetry Analysis of As(III) and As(V)

• Published in: Journal of physical chemistry. C Vol. 119; no. 21; pp. 11400 - 11409
• Main Authors: Bu, Lijuan, Gu, Tiean, Ma, Yixuan, Chen, Chao, Tan, Yueming, Xie, Qingji, Yao, Shouzhuo
• Format: Journal Article
• Language: English
• Published: American Chemical Society 28.05.2015

We report that the cathodic preconcentration of electron-insulating As(0) on Au and Pt electrodes can be enhanced by chemical reduction of As­(III) and As­(V) by electrogenerated H2, as studied by cyclic voltammetry. This finding is used for sensitive anodic stripping voltammetry (ASV) analysis of A...