三波长分光光度法用于中药分析少见报道。本文应用三波长分光光度法对三黄片中盐酸小檗碱的含量测定进行了研究。结果表明:此法简便、迅速,不经分离可直接测定三黄片中盐酸小檗碱的含量,且结果可靠,稳定性好,回收率高(98.66%),为中药分析提供一种可靠的分析方法。 Three-wavelength spectrophotometry is rarely used for analysis of traditional Chinese medicines. In this paper, three-wavelength spectrophotometry was used to determine the content of berberine hydrochloride in Sanhuang Tablets. The results show that this method is simple, rapid, and can directly determine the content of berberine hydrochloride in Sanhuang Tablets without separation. The results are reliable, the stability is good, and the recovery rate is high (98.66%), which provides a reliable analysis for the analysis of traditional Chinese medicines. method.