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盐酸黄连素片已收载于中国药典1977年版一部,但是对目前市场上广为销售的盐酸黄连素糖衣片的含量测定方法未作规定。通常都在剥除糖衣后,再按黄连素片的方法进行含量测定。但笔者在检验过程中,发现这种方法费时费事,引起的误差也较大。为此,采用不剥除糖衣的方法,直接测定其含量,结果与药典法相近。一、改进后的含量测定方法取盐酸黄连素糖衣片5片,置250ml烧杯中,加热水约150ml,搅拌溶解,放冷至室温,
Berberine hydrochloride tablets have been included in the Chinese Pharmacopoeia 1977 edition of a, but on the market currently widely distributed method of determination of berberine hydrochloride coated tablets is not provided. Usually after stripping sugar coating, press the method of berberine tablets for content determination. However, in the course of testing, I found that this method is time-consuming and labor-intensive, causing large errors. To this end, the method is not stripped of sugar-coated, direct determination of its content, the results and Pharmacopoeia similar. First, the improved content determination method Take berberine hydrochloride sugar-coated tablets 5, set 250ml beaker, heated water about 150ml, stirring to dissolve, let cool to room temperature,