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用4%的安珀菜特 LA-1或 LA-2的二甲苯溶液可从 pH=3的0.01M 丙二酸介质中定量地萃取钍,再用1M HCl 从有机相中反萃取,然后,在545毫微米处用钍试剂分光光度法测定钍。通过选择性萃取和反萃取使钍与其它元素分离。
Thorium can be quantitatively extracted from a 0.01 M malonic acid medium of pH = 3 using 4% Amphetamine LA-1 or a xylene solution of LA-2 and back-extracted from the organic phase with 1 M HCl, Thorium reagent spectrophotometric determination of thorium at 545 nm. Thorium is separated from other elements by selective extraction and stripping.