研究了新显色剂2 ，4 二羟基苯甲醛缩氨基硫脲（DBT ）与铜的显色反应，建立了光度法测定微量铜的新方法。
A new method for the spectrophotometric determination of trace copper with 2,4 dihydroxybenzaldehyde thiosemicarbazone(DBT) is reported in this paper.
研究了新显色剂2 ，4 二羟基苯甲醛缩氨基硫脲（DBT ）与铜的显色反应，建立了光度法测定微量铜的新方法。
A new method for the spectrophotometric determination of trace copper with 2,4 dihydroxybenzaldehyde thiosemicarbazone(DBT) is reported in this paper.
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