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本文研究了在弱酸性介质中，利用铜（Ⅱ）催化过氧化氢氧化二苯碳酸二肼生成二苯卡巴腙的指示反应与铜（Ⅱ）和二苯卡巴腙的显色反应相结合，建立了催化-萃取光度法测定铜的新方法。方法的线性范围为5．0～500μg／L，表观摩尔吸光系数为8．8×104L·mol－1·cm-1。用于水、铝合金和岩石中铜的测定。结果满意。
In this paper, we studied the reaction of copper (Ⅱ) catalyzed oxidation of diphenylcarbazide by diphenylcarbazide with copper (Ⅱ) in the presence of weak acid to establish a colorimetric reaction with copper (Ⅱ) and diphenylcarbazone to establish Catalytic - extraction spectrophotometric method for the determination of copper. The linear range of the method is 5.0 ~ 500μg / L, the apparent molar absorptivity is 8.8 × 104L · mol-1 · cm-1. Used in the determination of copper in water, aluminum alloy and rock. Satisfactory results.