Voltammetric determination of lead (II) ions at carbon paste electrode modified with banana tissue

被引：0

作者：

Institute of Chemistry, University of the Philippines, Los Baños, Philippines ^{[1
]}

机构：

[1] Institute of Chemistry, University of the Philippines, Los Baños

来源：

J. Appl. Sci. | 2007年 / 9卷 / 1286-1292期

关键词：

Banana tissue; Carbon paste electrode; Lead; Modifier;

D O I：

10.3923/jas.2007.1286.1292

中图分类号：

学科分类号：

摘要：

Banana tissue contains materials with functional groups which have the ability to form complexes with metal ions. With this property, banana tissue was used as modifier of carbon paste electrode for voltammetric determination of lead ions in aqueous samples. The use of 0.01 M HCl as supporting electrolyte and 20% (w/w) modifier gave an optimum current response for lead (II) solution. Accumulation time of 6 min, accumulating solution of pH 5, deposition time of 300 sec and deposition potential of-1500 mV were found to give the best results in the analysis of lead (II). Multiple stripping of the used electrode successfully removed lead ions for the regeneration of the electrode. The banana modified carbon paste electrode exhibited a sensitivity of 2.81 μA/ppm and a limit of detection (LOD) of 0.10 mg L-1. © 2007 Asian Network for Scientific Information.

引用

页码：1286 / 1292

页数：6

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