The stability study of Coptidis Rhizoma and Huanglian Jiedu Decoction / 中国药学杂志

ABSTRACT

RESULTS: Twenty-eight days later, the content of berberine hydrochloride in Coptidis Rhizoma Decoction in normal pressure Chinese materia Medica extractor group is from 0.066 9 to 0.065 5 mg��mL-1 and that in traditional decoction group is from 0.063 5 to 0.064 4 mg��mL-1. In Huanglian Jiedu Decoction (normal pressure Chinese materia medica extractor group and traditional decoction group), the content of jasminoidin is from 0.296 6 to 0.285 7 mg��mL-1 and from 0.275 0 to 0.261 2 mg��mL-1, baicalin decreased from 0.275 7 to 0.199 0 mg��mL-1 and from 0.219 4 to 0.162 4 mg��mL-1, berberine hydrochloride decreased from 0.026 2 to 0.005 0 mg��mL-1 and from 0.014 0 to 0.005 8 mg��mL-1, respectively. The result of pH determination of Coptidis Rhizoma and Huanglian Jiedu Decoction showed there is no difference during 1 month.