Properties of the ion-selective electrode with a chelating pseudo-liquid membrane phase for zinc determination

被引：27

作者：

Dumkiewicz, R ^{[1
]}

Wardak, C ^{[1
]}

Zareba, S ^{[1
]}

机构：

[1] Marie Curie Sklodowska Univ, Fac Chem, PL-20031 Lublin, Poland

来源：

ANALYST | 2000年 / 125卷 / 03期

关键词：

D O I：

10.1039/a907453h

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An optimal composition for pseudo-liquid membrane chelating potential phase of a zinc function pseudoliquid electrode was established. Its basic analytical parameters, such as the slope of characteristics (29 mV pa(Zn)(-1)), the detection limit (5.6 x 10(-6) mol dm(-3)), lifetime (40 d), response time (10 s), selectivity against nickel, cobalt, cadmium, calcium, magnesium and sodium ions, as well as the dependence of the electrode potential on pH, were established. The electrode was used to determine the presence of zinc ions in vitamin preparations. The results obtained were compared with the determination made by use of a voltammetric method.

引用

页码：527 / 530

页数：4

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