CHROMOGENIC LITHIUM CRYPTAHEMISPHERAPLEXES FOR DETERMINATION OF SODIUM IN AQUEOUS-SOLUTIONS

被引：12

作者：

CZECH, BP

CHAPOTEAU, E

CHIMENTI, MZ

ZAZULAK, W

GEBAUER, CR

KUMAR, A

机构：

[1] Miles Inc., Tarrytown, NY 10591

来源：

ANALYTICA CHIMICA ACTA | 1992年 / 263卷 / 1-2期

关键词：

CRYPTAHEMISPHERAPLEXES; LITHIUM COMPLEXES; SODIUM;

D O I：

10.1016/0003-2670(92)85439-D

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Three new lithium cryptahemispheraplexes for selective complexation of sodium in aqueous solutions were synthesized. Combining diaza-12-crown-4 or diaza-14-crown-4 with the rigid trianisyl concave produced hosts with two different cavity sizes. These compounds, having the [1.1] cavity, incorporate 2,4-dinitro-6-(trifluoromethyl)anilino (2 and 5) and 2,6-dinitro-4-(trifluoromethyl)anilino (4) chromophoric groups for generating a chromogenic and kinetic response to sodium ion. For comparison, the end product of sodium complexation with compound 2 (cryptahemispheraplex 3) was isolated and characterized.

引用

页码：159 / 167

页数：9

共 10 条

[1]

Berry M N, 1991, J Int Fed Clin Chem, V3, P18

[2]

BERRY MN, 1988, CLIN CHEM, V34, P2295

[3] KINETICS OF PROTOLYSIS OF CRYPTANDS IN BASIC AQUEOUS-SOLUTION [J].