DETERMINATION OF 241Am IN FOOD

A method for the determination of 241Am in food is reported in this paper. 241Am in food is first separated and purified by PMBP-TOPO-cyclohexzne synergistic extraction and HDEHP-Kel-F micro column extraction chromatography, and then collected and prepared directly into a source for further determination. The recovery of 24·Am in one gram ashed sample of food is over 60%. The decontamination factors of U, Th, 237Np, 238Pu and 242Cm are all over 103. It is suitable for routine analysis of 241Am in ordinary food.