FORMAZANS AS FUNCTIONAL-GROUPS OF CHELATING ION-EXCHANGERS .1.

被引：20

作者：

GROTE, M ^{[1
]}

KETTRUP, A ^{[1
]}

机构：

[1] GESAMT HSCH PADERBORN,FACHBEREICH CHEM & CHEM TECH,WARBURGER STR 100,D-4790 PADERBORN,FED REP GER

来源：

FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE | 1979年 / 295卷 / 05期

关键词：

D O I：

10.1007/BF00539705

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The preparation of substituted formazans and their fixation on cellulose, amino- and chloromethylated polystyrene is described. The capacities of the exchangers vary from 0.05 meq/g (cellulose) to 0.6 meq/g (polystyrene). They show in neutral medium greater affinity to Hg(II), Pd(II) and Ag(I), but no affinity to Cu(II). Further, a spectrophotometric determination of Hg(II) and Ag(I) with the watersoluble formazan (FII)-NO2 has been worked out. [Hg(II): e{open}546=23 000 l Mol-1 cm-1, Ag(I): e{open}546=38 000 l Mol-1 cm-1]. © 1979 Springer-Verlag.

引用

页码：366 / 370

页数：5

共 10 条

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