Methods: the paracetamol contents of the different samples of Ganmaoqing Tablets were determined by the deadstoptitration and HPLC, respectively.
方法:采用永停滴定法,HPLC法分别测定不同批号的感冒清片的对乙酰氨基酚含量。
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Objective: to evaluate the effect of instrument sensitivity on the concentration determination of tetracaine hydrochloride injection using dead - stoptitration method.