Research Article Open Access

Determination of Trivalent Aluminum and Divalent Zinc in Drinking Waters by Differential Pulse Stripping Voltammetry

Ahmed Hassan

Abstract

A Sensitive and precise differential- pulse stripping voltammetric method at static mercury dropping electrode (SMDE) has been applied to measure zinc(II) by anodic stripping at pH~¼4 and aluminum(III) by adsorptive cathodic stripping mode in presence of 1&Cross10-3M N,N` -bis-2-hydroxyethyl-2-amino-ethane sulphonic acid (BES) buffer at pH~7.1 and 2⨯10-5 M of alizarin red S as a ligand in drinking water samples purchased in Egypt. The optimal preconcentration potentials and times for the detection of these metal ions in all samples have been studied. The concentrations of metal ions were determined by standard addition method. The statistical parameters i.e. standard deviation, correlation coefficient, slope and confidence have been calculated. The limits of detection for Zn and Al were 2.5 and 10 µg l-1, respectively.

American Journal of Applied Sciences
Volume 4 No. 4, 2007, 245-250

DOI: https://doi.org/10.3844/ajassp.2007.245.250

Submitted On: 30 January 2007 Published On: 30 April 2007

How to Cite: Hassan, A. (2007). Determination of Trivalent Aluminum and Divalent Zinc in Drinking Waters by Differential Pulse Stripping Voltammetry . American Journal of Applied Sciences, 4(4), 245-250. https://doi.org/10.3844/ajassp.2007.245.250

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Keywords

  • Aluminum
  • Zinc
  • Electroanalytical determination
  • waters