四氯苯醌与磺胺甲基异口恶唑荷移反应的研究

THE STUDY OF CHARGE-TRANSFER REACTION OF SULFAMETHOXAZOLI WITH TETRACHLOROBENZO QUINONE

本文研究了四氯苯醌与磺胺甲基异口恶唑的荷移反应。实验表明：四氯苯醌与磺胺甲基异口恶唑在硼砂介质中可形成π—π＊荷移络合物，络合物的最大吸收波长为３６５ｎｍ，表现摩尔吸光系数是４．８３×１０４Ｌ·ｍｌ－１·ｃｍ－１，络合物组成比为１∶１，比尔定律的线性范围为１．８～３３μｇ／ｍＬ，回归方程为Ａ＝－６．６×１０－３＋０．６８６８Ｖ，相关系数ｒ＝０．９９９３，在此基础上初步探讨了荷移反应的机理，并用拟定的方法测定了复方新诺明片剂中磺胺甲基异口恶唑的含量，结果令人满意。

Electron acceptor tetrachlorobenzo quinone can form charge-transfer complexes with sulfamethoxazoli optimum conditions for determinationLinear calibration range and composition of comples have been reportedThe proposed method has been applied to the determination of sulfamethoxazoli in sinominco with satisfactory results