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- Title
Stripping Analysis of Trace Arsenic Based on the MnO<sub> x</sub>/AuNPs Composite Film Modified Electrode in Alkaline Media.
- Authors
Wu, Shouguo; Zhao, Qiping; Zhou, Lei; Zhang, Zhixin
- Abstract
A simple, rapid fabricated and sensitive modified electrode for detection of As(III) in alkaline media was proposed. The modified electrode was prepared by co-electrodeposition of manganese oxides (MnO x) and gold nanoparticles (AuNPs) on the glassy carbon electrode (GCE) with cyclic voltammetry. Linear sweep anodic stripping voltammetry (LS-ASV) was employed for the determination of arsenic (III) without interference from Cu(II), Hg(II), and other coexisting metal ions. A lower detection limit of 0.057 µg L−1 ( S/N=3) were obtained with a accumulation time of 200 s. The proposed method was successfully applied to determine arsenic (III) in real water samples with satisfactory recoveries.
- Subjects
ARSENIC analysis; GOLD nanoparticles; MANGANESE oxides; VOLTAMMETRY; SEPARATION (Technology); ELECTROPLATING
- Publication
Electroanalysis, 2014, Vol 26, Issue 8, p1840
- ISSN
1040-0397
- Publication type
Article
- DOI
10.1002/elan.201400219