摘要
Abstract
The problem of dissolution of tungsten ore in the acid solution after acid dissolution was effectively solved by using acid dissolution to decompose rock mineral samples and using oxalic acid as complexing agent,which can avoid the precipitation of tungsten acid. In the acid medium inductively coupled plasma mass spectrometry was used to determine the tungsten in the rock minerals,the aim of determination of the minim tungsten(0. 00xx% )and the constant tungsten( x. xx% ) by ICP-AES was reached. In this method when the acid medium was used, the W03 working curve of 0.00mg/L, 1. 00mg/L,10, 00mg/L and 50. 00mg/L is excellent, the correlation coefficient coin-cides with the national standard material analysis result,the method detection limit is 3.4μg/g and the LSD is less than 5.0%. The results showed that this method has the characteristics that the time for pretreating samples is short, the operation is simple and analysis stability is good, which fits for the geological survey and beneficiation flowsheet samples. This method has been used in the analysis of beneficiation flowsheet samples.关键词
ICP-AES/酸溶分解试样/酸性介质/钨Key words
ICP-AES/Acid dissolution decomposition samples/Acid medium分类
化学化工
