LITHIUM ION-SELECTIVE ELECTRODES BASED ON 1,10-PHENANTHROLINE DERIVATIVES

被引：27
|
作者：
SUGIHARA, H
OKADA, T
HIRATANI, K
机构：
[1] National Institute of Materials and Chemical Research, Tsukuba 305, Higashi
来源：
ANALYTICAL SCIENCES | 1993年 / 9卷 / 05期
关键词：
ION-SELECTIVE ELECTRODE; LITHIUM ION; 1,10-PHENANTHROLINE;
D O I：
10.2116/analsci.9.593
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The preparation of 1,10-phenanthroline derivatives and 4,7-diphenyl-1,10-phenanthroline derivatives as neutral carriers for ion-selective electrodes and the properties of the title electrodes are described ind detail. A log K(Li,Na)Pot value of -3.1 was obtained for a Li+-selective PVC membrane electrode based on 2,9-dibutyl-1,10-phenanthroline. This value is superior to those reported so far. The electrodes also showed excellent selectivity coefficients for Li+ relative to K+, Mg2+, and Ca2+. The effects of substituents at the 2- and 9- positions of the carriers on the selectivity are discussed.
引用
收藏
页码：593 / 597
页数：5
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