电感耦合等离子体质谱法(ICP-MS)测定钼矿石中的铼

Determination of Rhenium in Molybdenum Ores by Inductively Coupled Plasma Mass Spectrometry(ICP-MS)

以硝酸+氢氟酸+高氯酸消解钼矿石中的铼,不经分离富集,用电感耦合等离子体质谱法直接测定钼矿石样品中的铼。方法检出限可达0.012μg/g,通过对国家岩石一级标准样品的测试,测定结果一致;对GBW07285标准样品11次测定的相对标准偏差(RSD)为1.1%。

A inductively coupled plasma mass spectrometry（ICP-MS） method was developed to directly analyze rhenium in molybdenum ores without sample separation and enrichment after the sample were digested in a mixture of nitric acid, hydrofluoric acid, and perchloric acid. The detection limit was 0. 012 μg/g. The method was applied to determine rhenium in the primary standards of national rock samples and the results were consistent with the true values. The relative standard deviation （RSD） for 11 replicate analyses of the GBW07285 standard sample was 1.13%.