本文采用ICP-MS法对成人脏器样品中痕量稀土元素进行了研究,选择了测定的最佳仪器参数,检查了测定中的各种干扰和影响;用镍(Re)为内标元素补偿基体抑制效应和灵敏度的漂移.方法对稀土元素各分量的检出限为0.005—0.026ng·ml~(-1),标准回收率为92.9—111.3%,精密度为0.96—3.07%.在严格分析质量控制的基础上用混合酸消解样品,不须分离富集,直接对成人的心、脾、肝、肾、肺、肌肉中15种稀土元素进行测定. In this paper, trace amounts of rare earth elements in adult viscera samples were studied by ICP-MS method, the best instrument parameters were selected, and the various interferences and influences in the determination were examined. Nickel (Re) The inhibition of substrate and the drift of sensitivity.The detection limit of each component of rare earth elements is 0.005-0.026ng · ml -1 with the standard recovery of 92.9-111.3% and the precision of 0.96-3.07% Based on the analysis of quality control, 15 kinds of rare earth elements in the heart, spleen, liver, kidney, lung and muscle of adults were determined directly without digestion and enrichment by mixed acid digestion samples.