日本在用HNO_3和HClO_4分解后,借助螯合树脂(Chelex 100)预富集,用电感耦合等离子体质谱法(ICP-MS)进行了人体血清中稀土元素的测定。当在室温下进行螯合树脂预富集时,重稀土元素的回收率比轻稀土元素小,因为它们与分解血清溶液时残留的有机化合物生成稳定的络合物。在螯合树脂 Japan was pre-enriched with chelate resin (Chelex 100) after decomposition with HNO 3 and HClO 4, and the determination of rare earth elements in human serum was performed by inductively coupled plasma mass spectrometry (ICP-MS). When chelating resin pre-enrichment is performed at room temperature, the recovery of heavy rare earth elements is smaller than that of light rare earth elements since they form stable complexes with the organic compounds remaining in the serum solution. Chelating resin