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本文叙述了结合CL－TBP萃取色层分离，运用ICP／MS测定U3O8中痕量杂质元素B、Ti、Cd、V、Cr、Zn、Mo、Sb、W、Bi的方法。U3O8经硝酸溶解后，采用CL－TBP草林树脂作固定相，5．5mol／L，硝酸作流动相的萃取色层法使杂质元素与铀基体分离，杂质元素淋洗液用ICP／MS测定。取样量为O．5g时，各杂质元素的测定下限为1×10（-8）g／g。方法的重加回收率在88％－116％之间，相对标准偏差小于14％。
In this paper, a method for the determination of trace impurity elements B, Ti, Cd, V, Cr, Zn, Mo, Sb, W and Bi in U3O8 by CL-TBP extraction and chromatographic separation was described. U3O8 was dissolved in nitric acid, CL-TBP grass forest resin as the stationary phase, 5.5mol / L, nitric acid as the mobile phase extraction chromatography to separate the impurity elements and the uranium matrix, impurity element eluent ICP-MS determination . The sample size is O. 5g, the lower limit of determination of each impurity element is 1 × 10 (-8) g / g. The recoveries of the methods were between 88% and 116% with relative standard deviations less than 14%.