锌精矿中铟的测定

应用电感耦合等离子体发射光谱法测定锌精矿中的铟，确定了最佳工作条件，选择了最佳分析谱线，并利用标准加入法和基体匹配法确定了该方法的准确性。样品用氟化氢铵、盐酸、硝酸、高氯酸溶样，用盐酸浸取。本法与萃取分离盐酸羟胺示波极谱法测定的铟含量结果一致。方法准确，快速，加标回收率为99.6%~101.7%，相对标准偏差为0.97%~2.1%。

Determination of Indium in zinc concentrate by inductively coupled plasma emission spectrometry

A method of determining indium in zinc concentrate by inductively coupled plasma emission spectrometry is reported. The experiment confirmed optimum conditions and spectrum line for the determination. And the accuracy of the experimental method was ascertained by using the standard addition method and the matrix matching method. The sample was digested by ammonium hydrogen fluoride, hydrochloric acid, nitric acid and perchloric acid. Then the salts were dissolved by ammonium hydrogen. The method was applicable for the determination of indium in zinc concentrate, and the results were in good agreement with the results of the oxammonium hydrochloride medium oscillopolarographic method. The method is precise and rapid. The recovery of standard addition and precision tests were made, with the recoveries of 99.6%~101.7% and the relative standard deviations of 0.97%~2.1%.