Procedure for dissolving wolframite in order to determine trace elements by atomic absorption spectrometry

被引：3

作者：

Mignardi, S ^{[1
]}

Masi, U ^{[1
]}

机构：

[1] UNIV ROMA LA SAPIENZA,DIPARTIMENTO SCI TERRA,I-00185 ROME,ITALY

来源：

TALANTA | 1995年 / 42卷 / 12期

关键词：

wolframite; trace elements; atomic absorption spectrometry;

D O I：

10.1016/0039-9140(95)01681-3

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An analytical procedure for dissolving wolframite in order to determine trace elements by atomic absorption is reported. After decomposition of the mineral by alkaline fusion, the cooled flux is dissolved by heating with aqua regia. The finely crystalline precipitate of tungstite, which forms on standing, is filtered and dissolved by heating with aqua regia. Tungstite forms again in the latter solution and the filtration and solubilization are repeated until the solution contains negligible amounts of trace elements. Following this procedure, trace elements in 35 samples of natural wolframite have been dissolved and the solutions obtained have been analyzed by atomic absorption spectrometry for Fe, Mn, Cu, Zn, Pb, Co, Ni and Cd.

引用

页码：2059 / 2061

页数：3