火焰原子吸收法在测定高品位、高氧化率铜矿石物相分析中准确度的探讨

Discussion on the accuracy of flame atomic absorption spectrometry in phase analysis of copper ores with high grade and oxidation rate

在铜矿石物相分析中,简易铜物相分析法、分光光度法、火焰原子吸收法都能对铜矿石中的游离氧化铜、结合氧化铜、硫化铜进行准确的测定,两种方法在上机测量时因测定原理的不同,其分析结果特别是在测定高品位全铜、高氧化率铜时,原子吸收法往往其测定结果偏低,本文重点就分析探讨原子吸收法测定铜物相时存在的测定结果偏低的影响因素,并就出现的这种问题提出切实可行的解决方法。

In the copper ore phase analysis,simple copper phase analysis,spectrophotometry and flame atomic absorption method can free copper oxide of copper ore,copper oxide,copper sulfide in accurate measurement,two methods due to the difference of the measurement in computer measurement,the analysis result,especially in the determination of high grade copper,high oxidation rate of copper,atomic absorption method often its determination result is low,this paper will analyze the atomic absorption method for the determination of copper content phase of the influence factors of the determination results is low,and the problems in the practical and feasible solutions are put forward.