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本文发现DCTA络合锡(Ⅳ)的能力比EDTA弱得多,并据此提出用EDTA和DCTA-若杏仁酸隐蔽法间接测定锡。应用本法测定了合金和锡矿中的锡。
This paper found that the ability of DCTA to complex tin (IV) is much weaker than that of EDTA, and the indirect determination of tin with EDTA and DCTA-mandelic acid concealment method is proposed. This method is used to determine tin in alloys and tin mines.