1.前言 TBP萃淋树脂是近年来出现的一种新型离子交换树脂,它是将TBP萃取剂聚合在苯乙烯—二乙烯苯树脂的骨架上而合成的。用该树脂进行分离、富集微量金属,操作方便、装柱要求不严格、而且分离效果较好。现已应用到铀、钍的分离和测定中。本文研究TBP萃淋树脂分离、富集金的条件和性质,采用孔雀绿萃取光度法测定。经矿样验证,该法简单快速,灵敏度较高,选择性较好,适用于矿石中微量金的测定。 1. Introduction TBP extraction resin is a new type of ion exchange resin that has emerged in recent years. It is synthesized by polymerizing TBP extractant on the skeleton of styrene-divinylbenzene resin. With the resin separation, enrichment of trace metals, easy to operate, packing requirements are not strict, and the separation is better. Has been applied to the separation and determination of uranium, thorium. In this paper, the conditions and properties of TBP levitation resin separation and enrichment were studied. The extraction was determined by malachite green extraction spectrophotometry. The mineral sample verification, the method is simple and fast, high sensitivity, better selectivity, suitable for the determination of trace gold in ores.