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近年来,由于Ge(Li)γ谱仪的普遍使用,亚化学计量分离法朝着多元素组分离的方向发展,亦可同时测定多种元素。 Elek和Kukala等人作了多元素亚化学计量组分离的理论研究,提出了关于MA_n类型的金属螯合物的多元素亚化学计量分离的关系式。如果指定:定量萃取(≥99％)金属离子M_i,同时保证亚化学计量(50％)萃取金属离子M_s,而金属离子M_1不被萃取,留在水相(≥99％);当等体积萃取时,有下述关系式:
In recent years, due to the widespread use of Ge (Li) γ spectrometer, the development of sub-stoichiometry in the direction of separation of multi-element groups can also determine a variety of elements simultaneously. Elek and Kukala et al. Made a theoretical study on the separation of multi-element and sub-stoichiometries and proposed the relationship between the multielement sub-stoichiometry of MA_n-type metal chelates. If specified: Quantitative extraction (≥99%) of metal ions M_i, while ensuring sub-stoichiometric (50%) extraction of metal ions M_s, whereas metal ions M_1 are not extracted and remain in the aqueous phase (≥99% When, have the following relation: