Spectrographic determination of gold in geological materials after preconcentration on Spheron-Thiol

被引：32

作者：

Polakovicova, J

Medved, J

Stresko, V

Kubova, J

Celkova, A

机构：

[1] Faculty of Natural Sciences, Comenius University, SK-842 15 Bratislava, Mlynská dolina

来源：

ANALYTICA CHIMICA ACTA | 1996年 / 320卷 / 01期

关键词：

gold; geological materials; ion exchange; Spheron-Thiol; preconcentration;

D O I：

10.1016/0003-2670(95)00518-8

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A spectrographic method for the determination of gold in geological materials after preconcentration on chelating sorbent Spheron-Thiol has been developed. The method involves the decomposition of the samples, preconcentration of Au on Spheron-Thiol, decomposition of the sorbent and spectrographic determination of gold at 267.59 nm. The method is simple, rapid and enables the determination of gold at mu g g(-1) levels in various types of geological materials with good precision and accuracy. The detection limit is 0.5 mu g Au kg(-1). The method has been applied to the determination of Au in a number of certified and other reference materials with accurate results.

引用

页码：145 / 149

页数：5

共 26 条

[1] A SOLVENT-EXTRACTION TECHNIQUE FOR DETERMINING CONCENTRATIONS OF GOLD AND SILVER IN NATURAL-WATERS [J].