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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验证了方法的准确性。样品用氟化氢铵、盐酸、硝酸、高氯酸溶样,用盐酸定容。结果表明,电感耦合等离子体发射光谱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%。
The determination of indium in zinc concentrate by inductively coupled plasma-atomic emission spectrometry has been carried out. The optimum working conditions have been determined. The best analytical line has been selected. The accuracy of the method has been verified by standard addition method and matrix matching method. Samples with ammonium bifluoride, hydrochloric acid, nitric acid, perchloric acid dissolved samples, with hydrochloric acid volume. The results show that the results of inductively coupled plasma atomic emission spectrometry and extraction of hydrochloric acid hydroxylamine oscillopolarographic determination of indium content results. The method was accurate and rapid with the recovery rates of 99.6% ~ 101.7% and the relative standard deviations of 0.97% ~ 2.1%.