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本文研究了废性中痕量的铅、铬、铜、锌、钴、镍、锰、铁、镉和铊的测定方法,用阳离子交换树脂在0.1N HC1介质中吸附这些金属离子,用100ml 3N HC1溶液洗脱,在空气—乙炔火焰中用WYX—401型原子吸收分光光度计测定。给出了阳离子交换剂的交换容量,各种金属离子分配系数和淋洗曲线以及原子吸收分光光度测定的条件。12种常见的阴离子对交换富集没有影响。通过离子交换可以富集约100倍,随后进行测定,结果良好。
The method for the determination of trace amounts of lead, chromium, copper, zinc, cobalt, nickel, manganese, iron, cadmium and thallium in waste was studied in this paper. The cation exchange resins were used to adsorb these metal ions in 0.1N HC1 medium, HC1 solution eluting in the air - acetylene flame WYX-401 atomic absorption spectrophotometer. The exchange capacity of cation exchangers, the partition coefficients and elution profiles of various metal ions, and the conditions of atomic absorption spectrophotometry were given. The 12 common anions have no effect on exchange enrichment. About 100-fold enrichment by ion exchange followed by measurement yielded good results.