HPLC method for determination of paracetamol, caffeine, aspirin and the related substances in Jiere Zhitong powder was presented.

• 建立了一种HPLC方法,同时测定解热止痛散中对乙酰氨基酚、咖啡因和阿司匹林的含量以及相关杂质水杨酸和对氨基酚的含量。