A study of differential potentiometric stripping analysis for lead and cadmium with Nafion coated carbon fibre electrode

被引：0
|
作者：
DONG
HE
WANG
机构：
来源：
ChineseJournalofChemistry | 1990年 / 06期
基金：
中国国家自然科学基金;
关键词：
A study of differential potentiometric stripping analysis for lead and cadmium with Nafion coated carbon fibre electrode;
D O I：
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中图分类号：
学科分类号：
摘要：
The differential potentiometric stripping analysis (DPSA) with Nafion coated carbon fibreelectrode has been studied, and a method to determine lead and cadmium in urine directly has beenattempted. The effect of various experimental parameters on the DPSA response is discussed.The experimental conditions include 0.2M sodium perchlorate, deposition potential of-1.0 or -1.1 Vand using 20 ppm mercuric ion as oxidizing agent. The response of the signal is in linear relationwith the concentrations of lead and cadmium respectively up to 0.5 ppm. The electrode coated withNafion film alleviates the interference from organics in urine samples.
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页码：507 / 511
页数：5
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