高效液相色谱法同时测定复方对乙酰氨基酚片中3组分的含量

目的:建立以高效液相色谱法同时测定复方对乙酰氨基酚片中对乙酰氨基酚、咖啡因、阿司匹林含量的方法。方法:色谱柱为ODS,流动相为甲醇-4.2%的冰醋酸溶液(3∶7),流速为1.0ml/min,检测波长为275nm,进样量为20μl,柱温为25℃。结果:对乙酰氨基酚、咖啡因、阿司匹林的线性范围分别为16.08～428.80μg/ml(r=0.9981)、3.42～91.20μg/ml(r=0.9988)、23.87～769.92μg/ml(r=0.9999),平均回收率分别为99.2%(RSD=0.23%)、100.4%(RSD=0.63%)、99.3%(RSD=0.11%)。结论:本方法简便、快速、准确,可用于复方对乙酰氨基酚片的含量测定。

Simultaneous Determination of 3 Components in Compound Paracetamol Tablets by HPLC

OBJECTIVE:To establish a HPLC method for the determination of paracetamol,caffeine and aspirin in compound paracetamol tablets.METHODS:The chromatographic column was ODS,the mobile phase was methanol-4.2% glacial acetic acid solution(3∶7)with a flow rate at1.0ml/min;the detecting wavelength was 275nm,the sample size was 20μl and the column temperature was 25℃.RESULTS:The linear ranges of paracetamol,caffeine and aspirin were 16.08～428.80μg/ml(r=0.9981),3.42～91.20μg/ml(r=0.9988) and 23.87～769.92μg/ml(r=0.9999) respectively;The average recovery were 99.2%(RSD=0.23%),100.4%(RSD=0.63%)and 99.3%(RSD=0.11%)respectively.CONCLUSION:This method was simple,fast and accurate,which can be used for the content determination of compound paracetamol tablets.