用层离法识别熊胆,比較簡捷、准确、經济。茲归納报告其方法与結果如下: 1.熊胆特有成分(去氧熊胆酸)的柱层离称取熊胆粉(經五氧化二磷或真空干燥者)約2克,加二倍量海砂,于乳鉢內研匀,以30毫升苯研合后,傾入事先装好的氧化鋁柱(45×0.5厘米)中,以苯-石油醚(3∶5)混液显层、洗脫,除 It is relatively simple, accurate, and economical to identify bear bile by delamination. The methodology and results of this report are summarized as follows: 1. The column layer of the specific ingredient of bear bile (deoxycholic cholic acid) is about 2 g of birch powder (via phosphorus pentoxide or vacuum desiccator). The amount of sea sand was studied in a mortar and pestle. After homogenized with 30 ml of benzene, it was poured into a pre-packed alumina column (45 x 0.5 cm) and exposed to a benzene-petroleum ether (3:5) mixture. Take off