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由于我国药典、部标和省标均未收载检验梅片、艾片的质量方法,因此难于测定其纯度。本文通过测定比旋度来检验梅片和艾片的纯度,并通过纯、杂梅片或艾片的比旋度的比较测定其掺杂程度。方法介绍如下。分别精密称定梅片、艾片及掺杂品等,加入无水乙醇,使成每ml含10mg溶液,按《中国药典》85年版旋光度测定法操作,测定比旋度,结果见表。
Since the quality methods for the inspection of plum slices and opiates are not included in the Chinese Pharmacopoeia, Departmental Standards, and Provincial Standards, it is difficult to determine their purity. In this paper, the purity of the plums and opiates was tested by measuring the specific rotation, and the degree of doping was determined by comparison of the specific rotations of pure, heterozygous, or moxa. The method is described below. Weighed finely sliced plums, opiates, and adulterants, respectively, and added anhydrous ethanol to give a 10 mg solution per ml. Operate according to the “Chinese Pharmacopoeia” 85-year optical rotation test method and determine the specific rotation. The results are shown in the table.