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The Chemical Educator

ISSN: 1430-4171 (electronic version)

Table of Contents

Abstract Volume 19 (2014) pp 058-060

Square Wave Anodic Stripping Voltammetry Analysis of Arsenic Using Solid Gold and Silver Electrode

Corrie Spradlin, Phuong Khanh Quoc Nguyen and Suzanne Lunsford*

Wright State University, Department of Chemistry, 3640 Colonel Glenn Hwy., Dayton, Ohio 45435; Suzanne.Lunsford@wright.edu
Received December 14, 2013. Accepted February 17, 2014.

Published: 14 March 2014

Abstract. The manuscript describes an introductory electro-analytical experiment utilizing Square Wave Anodic Stripping Voltammetry (SWASV). In this experiment, SWASV is employed to detect metal contaminant arsenic (III) at part-per-billion concentration using the gold and silver working electrodes. The use of square wave potential waveform in the stripping step, instead of linear sweep, allows for the sensitivity enhancement in arsenic detection. For this particular project, the gold electrode was found to give better results based on the parameters utilized with the SWASV analysis.

Key Words: Laboratories and Demonstrations; analytical chemistry

(*) Corresponding author. (E-mail: Suzanne.Lunsford@wright.edu)

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