本文研究了双氯灭痛与对苯醌和四氯苯醌之间的荷移反应．实验结果表明：双氯灭痛与对苯醌和四氯苯醌的反应分别在乙醇介质和弱碱性介质中进行．配合物的最大吸收波长分别是５１０ｎｍ和３３５ｎｍ；表观摩尔吸光系数分别是１．２９×１０３和１．１×１０４Ｌ·ｍｏｌ－１·ｃｍ－１；比尔定律的线性范围分别是１０～１２０μｇ／ｍＬ和２～３０μｇ／ｍＬ．用拟定的方法分析药物制剂含量获得满意结果 In this paper, the charge transfer reaction between diclofenac and p-benzoquinone and chloranil is studied. The experimental results show that the reaction of diclofenac both with p-benzoquinone and chloranil is carried out in ethanol medium and weak alkaline medium respectively. The maximum absorption wavelength of the complex was 510 nm and 335 nm, respectively. The apparent molar absorptivities were 1.29 × 103 and 1.1 × 104 L · mol-1 · cm-1, respectively. The linear range of Beer’s law was 10 ~ 120 μg / mL and 2 to 30 μg / mL. The proposed method was used to analyze the content of the drug to obtain satisfactory results