研究了麻杏石甘汤改成滴丸工艺中提取物的制备方法。以双波长薄层扫描法测定麻黄碱的含量为依据，对4种提取方法进行比较．结果表明，各法与汤剂之间存在显著性差异，分开提取法Ⅰ较好.

Influence of extraction process on the quality of Maxingshigan pills was studied. Guided by the amount of ephedrine in the extraction as determined by dual wavelength TL- C-scanning. Four different processes were compared. Result showed that Process C was the best among all.