本文叙述了一个简便和快速测定混合片剂中非那西汀含量的分析方法。本法原理基于下述反应。将非那西汀先硝化后用氢氧化钠皂化,可定量地转化为3-硝基对氨基苯乙醚,溶解在硷性溶液中,在445mμ比色测定,此法可以应用于含非那西汀r—5mg的样品,它的操作简单,准确度和专属性等方面,都优于现行的各种方法。在测定A.P.C片剂时,不需要分 This article describes a simple and rapid method for the determination of phenacetin in mixed tablets. The principle of this method is based on the following reaction. The phenacetin after nitrification with sodium hydroxide saponification can be quantitatively converted to 3 - nitro p-amino phenetole dissolved in alkaline solution, 445mμ colorimetric determination of this method can be applied to containing phenacene Ting r-5mg samples, its simple operation, accuracy and specificity, etc., are better than the current methods. When measuring A.P.C tablets, no points are required