摘要
本文研究了在硼砂介质中，吡哌酸与四氯对苯醌生成稳定的１：１络合物，其最大吸收波长λｍａｘ＝３７０ｎｍ，表观摩尔吸光系数ε３７０＝３．３×１０４Ｌ·ｍｏｌ－１·ｃｍ－１，本方法测定药物制剂含量与文献方法一致，回收率为９９．２５～１００．３％，相对标准偏差为１．２２％．
In this paper, pipemidic acid reacts with tetrachlorobenquinone in broax solution to form a stable complex. Its maximum adsorbent is at 370 nm, and ε=3. 3 ×104 L·mol-1·cm-1,According to it, the proposed method is applied to determination of pipemidic acid in tablets and capsules with satisfactory results. The method gives a relative standard deviation of 1. 22%,The recovery is 99. 25￣100.2%.
