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根据对乙酰氨基酚经酸水解后可重氮化反应的性质，采用差示分光光度法测定强力维C银翘片中对乙酰氢基酚的含量，可以较好的清除其他成分的干扰，方法简单、快速、准确，为该制剂的质量控制提供了依据．
According to the nature of the diazotization reaction of acetaminophen after acid hydrolysis, the content of p-acetylphenol in strong Vitamin C Yinqiao Tablets was determined by differential spectrophotometry, which can better remove the interference of other components. Simple, fast and accurate, provided the basis for the quality control of the preparation.