用乘子罚函数法处理多波长分光光度数据同时测定复方阿斯匹林片中三组分的含量 ,模拟样品中阿斯匹林、非那西丁、咖啡因的平均回收率分别为 10 0 .4 %、99.78%、10 0 .6% ,相对标准偏差分别为 0 .4 5%、0 .56%、1.17%。对 4个批号实际样品的测定结果与标准方法的测定结果吻合。 Multiplier spectrophotometric data were processed by multiplier penalty function to determine the content of three components in compound aspirin tablets. The average recoveries of aspirin, phenacetin, and caffeine in simulated samples were respectively 10 0 .4%, 99.78% and 100.6%, respectively. The relative standard deviations were 0.45%, 0.56% and 1.17% respectively. The test results of 4 batches of actual samples are consistent with those of the standard method.