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Citation: Peng Tuzhi, Wang Guoshun, Zhu Peilin. ELECTROSTATIC ADSORPTION OF GOLD (Ⅲ) ON CARBON PASTE ELECTRODE AND ITS VOLTAMMETRIC DETERMINATION[J]. Chinese Journal of Applied Chemistry, ;1992, 9(2): 76-78. shu

ELECTROSTATIC ADSORPTION OF GOLD (Ⅲ) ON CARBON PASTE ELECTRODE AND ITS VOLTAMMETRIC DETERMINATION

1.
Department of Chemistry, Hangzhou University, Hangzhou 310028

Corresponding author: Peng Tuzhi,
Received Date: 21 March 1991
Available Online: 17 May 1991
Fund Project:

A sensitive method for determination of gold in ore using cathodic stripping voltammetry is reported.The method is based on the adsorption of AuCl₄^- on the carbon paste surface at+1.4V (vs Ag/AgCl) in 0.1mol/L HCl solution.In the concentration range of 2~100ng/mL the stripping current and concentration of gold appeared a linear relationship. The detection limit is 0.2ng/mL after 5 min accumulation. The effects of different parameters on the response were examined.
- carbon paste electrode,
- adsorptive stripping voltammetry,
- gold
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