研究并改进了可见分光光度法测定铊在HCl介质中活性碳吸附铊及草酸胺解吸铊的分离条件,提出了八羟基喹啉紫外分光光度法测定铊的新方法,以八羟基喹啉为配合剂与铊(Ⅲ)形成的配合物,在λ=230nm处有最大吸收,Tl(Ⅲ)质量浓度在0~24μg·25mL^-1范围符合比耳定律、回收率在96.5%~101.8%之间.
The separation of Thallium has been studied deeply and improved in this paper. Thallium is separated from other elements by using activity carbon for absorption material and (NH4 )2 C2O4 for desorption reagent in HCL solution. The amounts of thallium combined with 8-Hydroxyquinoline in 0 -24 μg@ 25 mL^-1 shows straight line with A at λ=230 nm. The recoveries of the synthetic water sample are 96.5% - 101.8%.