胆酸是人工牛黄的主要成分之一,它是以牛羊胆汁(膏)为原料,提取制成的。其原料质量的优劣直接影响到胆酸的含量与收率。我厂使用的牛羊胆汁(膏)多从外地进货,一小部分是京郊收购的,原料来源比较复杂。以前对原料没有进行检验时,有的地方来的胆汁或胆膏做不出胆酸,最后只得报废,一次就损失几万元。为此我们用薄层层析法对已知牛羊胆汁、已知猪胆汁和来货样品进行了分析,发现有的样品里面掺混了猪 Bile acid is one of the main components of artificial bezoar. It is extracted from beef and bile (paste) as raw material. The quality of raw materials directly affects the content and yield of cholic acid. The cattle and sheep bile (Ointment) used in our factory are mostly purchased from overseas, a small part of which is purchased in the Beijing suburbs, and the source of raw materials is relatively complicated. In the past, when raw materials were not tested, there was no bile or bile in some places. In the end, they had to be scrapped, and they lost tens of thousands of yuan at a time. For this purpose, we used thin layer chromatography to analyze known cattle and sheep bile, known pig bile, and incoming samples, and found that some samples were mixed with pigs.