黄连为我国著名的常用中药,目前,国内主要的商品黄连是味连、部分雅连及云连。此外,各地还有自产自销的多种野生黄连,如峨眉野连、土黄连、草连、串珠连、天全野连、西藏野连及灌县野连等10种。作者用薄层光密度双波长扫描法,测定了上述各种黄连中小檗碱、黄连碱、巴马亭、药根碱和表小檗 Huanglian is a famous traditional Chinese medicine in China. At present, the main commodities in China are Coptis, some Yalian and Yunlian. In addition, there are also a variety of wild berberines produced and sold locally, such as Emeiyelian, Tuhuanglian, Cailian, Dianzhulian, Tianquanyeilian, Tibetyelian and Guanxianyelian. The authors determined the berberine, coptisine, bamazetin, jatrorrhizine and epidermis of various berberine mentioned above by thin-layer optical density dual-wavelength scanning method.