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乙醛酸缩氨基硫脲与铜形成的络合物在２４５ｎｍ处有一灵敏的吸收峰，其ε＝１．４ｘ１０￣４Ｌｍｏｌ￣（－１）ｃｍ￣（－１）本文研究了络合物的形成及铜的最佳测试条件，应用于铝合金、铁合金中铜的测定获得了满意的结果．
The complex formed between glyoxylic thiosemicarbazone and copper has a sensitive absorption peak at 245nm, and its ε = 1.4x10 ~ 4Lmol -1 (cm -1). The formation of complex And copper the best test conditions, used in aluminum, iron alloy determination of copper obtained satisfactory results.