METHODS TLC was used to make a qualitative determination for 4 drugs in the formulary.The content of bomeol was determined by GC, the contents of strychnine and brucine were determined by TLC.

• 方法采用薄层色谱法对本品4种药物进行定性鉴别，采用气相色谱法测定冰片的含量，薄层扫描法测定马钱子中士的宁、马钱子碱的含量。