用P291[二(二异丁基甲基)磷酸]、TRIO(三烷基氧膦)协同流动载体,N2O5为表面活性剂,液体石蜡为膜的增强剂,磺化煤油为溶剂,H_2SO_4溶液作内相试剂的乳状液膜体系迁移富集铀(Ⅵ)。研究了乳状液膜的稳定性、温度、铀的浓度、外相pH值、乳水比、油内比等因素对富集铀的影响。实验表明,在此适宜条件下铀的迁移富集率可达99.5％～100.4％,常见共存离子都不迁移富集。此法已用于富集测定水和废水中的痕量铀。 P291 [bis (ditobutylmethyl) phosphoric acid], TRIO (trialkylphosphine oxide) in combination with a flowable carrier, N2O5 as a surfactant, a liquid paraffin as a membrane reinforcing agent, a sulfonated kerosene as a solvent and a H 2 SO 4 solution as an internal phase Reagent Emulsion Liquid Membrane Mobilizes Uranium (Ⅵ). The effects of emulsion film temperature, temperature, uranium concentration, pH of external phase, ratio of milk to water, internal ratio of oil on uranium enrichment were studied. Experiments show that under the appropriate conditions, the enrichment rate of uranium can reach 99.5% ~ 100.4%, and the common coexisting ions do not migrate and enrich. This method has been used to enrich the determination of trace amounts of uranium in water and wastewater.