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 determination of trace chromium in copper and copper alloy by enhancing effect-flame atomic absorption spectrometry with derivative technique is pro - posed.
提出了增感效应导数火焰原子吸收光谱测定金属铜和铜合金中微量铬的新方法。
A new method has been studied for the determination of trace phosphorus in iron, nickel and copper by floatation-extraction spectrophotometry with molybdate and malachite green in acid solution.
研究了在酸性介质中，钼酸盐孔雀绿浮选分光光度法测定铁、镍、铜中痕量磷。
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