关于甲酚混合物及氯酚混合物中各异构体的检驗及分析,前人已进行过很多研究工作,特別是甲酚,提出的方法更多。Woolfolk和Taylor曾把酚类的对苯基偶氮苯甲酸酯用层析法分离。本文所提供的方法是取一定量的甲酚或氯酚混合物,在規定条件下和对硝基重氮苯盐进行偶联反应,将所得的有色偶氮化合物溶于三氯甲烷中,移到硅胶吸 On the cresol mixture and chlorophenol mixture of the isomers of the test and analysis, many studies have been carried out before, especially cresol, the proposed method more. Woolfolk and Taylor used phenolic p-phenylazobenzoates to separate them by chromatography. The method provided herein is to take a certain amount of cresol or a mixture of chlorophenols under coupling reaction with p-nitro diazonium salt under the specified conditions. The resulting colored azo compounds are dissolved in trichloromethane and moved to Silicone suck