CHROMOGENIC DIAZA-CROWN ETHER DICARBOXYLIC-ACIDS FOR DETERMINATION OF CALCIUM-IONS

被引：19

作者：

BARTSCH, RA ^{[1
]}

CHAPOTEAU, E ^{[1
]}

CZECH, BP ^{[1
]}

KRZYKAWSKI, J ^{[1
]}

KUMAR, A ^{[1
]}

ROBISON, TW ^{[1
]}

机构：

[1] MILES INC,DIV DIAGNOST,TARRYTOWN,NY 10591

来源：

JOURNAL OF ORGANIC CHEMISTRY | 1994年 / 59卷 / 03期

关键词：

D O I：

10.1021/jo00082a019

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The synthesis of two novel calcium chromoionophores 2 and 3, which are based on a benzodiazacrown ether with an inward-facing methoxyl group and bear two acetic acid groups and a 2,4,6-trinitroanilino chromophore, is described. Calcium and magnesium responses at pH optima are determined. Compound 2 exhibits a 31-nm bathochromic shift of the absorption maximum, an increase in the absorptivity upon complexation with Ca2+, and good selecitivity for Ca2+ over Mg2+ at pH 10.3. The response of chromoionophore 2 is linear from 0 to 8 X 10(-3) M Ca2+.

引用

页码：616 / 621

页数：6

共 15 条

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