Gupta V D
J Pharm Sci. 1976 Jan;65(1):144-5. doi: 10.1002/jps.2600650138.
A simple and accurate method for the quantitative determination of resorcinol in the presence of phenol is reported. The method is based on the formation of indophenol by reacting resorcinol with 2, 6-dibromoquinone-4-chlorimide. The concentration of indophenol can be measured spectrophotometrically. This method is recommended for the determination of resorcinol in resorcinol-phenol-boric acid solution and carbol-fuchsin solution. The decomposition products of resorcinol and phenol, e.g., colored quinones, do not interfere with the assay procedure.
报道了一种在苯酚存在下定量测定间苯二酚的简单准确方法。该方法基于间苯二酚与2,6 - 二溴醌 - 4 - 氯亚胺反应生成靛酚。靛酚的浓度可用分光光度法测定。该方法推荐用于测定间苯二酚 - 苯酚 - 硼酸溶液和石炭酸品红溶液中的间苯二酚。间苯二酚和苯酚的分解产物，如有色醌类，不干扰测定过程。
