Highly selective iodide membrane electrode based on a cerium salen

被引：93
作者：
Ganjali, MR [1 ]
Poursaberi, T
Hosseini, M
Salavati-Niasari, M
Yousefi, M
Shamsipur, M
机构：
[1] Univ Tehran, Dept Chem, Tehran, Iran
[2] Kashan Univ, Dept Chem, Kashan, Iran
[3] Razi Univ, Dept Chem, Khorramshahr, Iran
来源：
ANALYTICAL SCIENCES | 2002年 / 18卷 / 03期
关键词：
D O I：
10.2116/analsci.18.289
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A highly selective PVC membrane electrode based on a cerium-salen complex was prepared. The sensor displays an anti-Hofmeister selectivity sequence with a preference for iodide ion over many common organic and inorganic anions. The proposed electrode exhibits a near-Nernstian behavior over a wide concentration range (5.0 x 10(-2) - 8.0 x 10(-6) M) with a slope of 57.5 mV per decade, and a detection limit of 6.0 x 10(-6) M. The electrode has a very fast response time and can be used in the pH range of 3.0 - 11.0. It was applied, as an indicator electrode, in potentiometric titration of Ag+ ions.
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收藏
页码：289 / 292
页数：4
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