氢化物发生ICP-MS连用技术的研究与应用

Study and application of coupling technique of hydride generation with ICP-MS determination

研究了氢化物发生与ICP-MS连用技术。采用氢化物发生与ICP-MS连用测定As、Sb、Bi、Ge、Sn、Ph、Se、Te,与ICP-MS直接测定相比,测定灵敏度提高1～2个数量级,检出限降低1～2个数量级。分析砷含量为0.3μg/g的标准样品,分析结果的相对标准偏差为4.2％。

A coupling technique of hydride generation with ICP-MS determination was studied in this paper. For the determination of As, Sb, Bi, Ge, Sn, Pb, Se and Te, the determination sensitivities of the proposed technique were increased by 1-2 magnitude and the detection Limits decreased by 1-2 magnitude in comparison with the direct ICP-MS determination. The relative standard deviation was 4.2%for analyzing a reference material containing 0.34 μg/g As.