BIOCHELATION CARTRIDGE FOR THE SOLID-PHASE EXTRACTION OF TRACE-METALS

被引：14

作者：

GLENNON, JD

SRIJARANAI, S

机构：

[1] Department of Chemistry, University College Cork, Cork

来源：

ANALYST | 1990年 / 115卷 / 05期

关键词：

Biochelating silica; Hydroxamic acid; Solid-phase extraction; Trace metal pre-concentration;

D O I：

10.1039/an9901500627

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The characterisation and metal complexation capacities of biochelating silicas utilising hydroxamate complexation are described. Metal complexation on the silica displayed the characteristic optical properties of the free complexes in aqueous solution. Unsubstituted and N-methyl-substituted monohydroxamate silicas are compared with the biochelator, desferrioxamine immobilised on to silica; the latter displayed an over-all lower capacity as a function of pH. A trace metal cartridge utilising the biochelating silica showed good stability, pre-concentration and elution properties for a number of metals.

引用

页码：627 / 630

页数：4

共 21 条

[1]

Agrawal Y. K., 1980, REV ANAL CHEM, V4, P237

[2]

AGRAWAL YK, 1980, B SOC CHIM BELG, V89, P159

[3] SAURECHLORIDE UND HYDROXAMSAUREN VON CARBOXYL-IONENAUSTAUSCHERN .10. MITTEILUNG UBER IONENAUSTAUSCHER [J].