燃气发生剂中二羟基乙二肟的测定

Spectrophotometric Determination of Dihydroxyglyoxime (DHG)in Gas Generator Propellants

基于二羟基乙二肪（DHG）与铁（Ⅲ）的颜色反应，用分光光反法测定DHG的含量。测定波长490nm，DHG的线性范围为0～5．00m8／50ml，摩尔吸光系数为1．38×103L·mol(-1)·cm(－1)。方法简便、快速，应用于燃气发生刘中DHG的测定，结果令人满意。

Based on the red complex produced from the reaction of dihydroxyglyoxime (DHG) and iron (Ⅲ),DHG content is determined by spectrophotometric method. The maximum absorption wave length is 490nm and the molar absorptivity is 1. 38 ×103L/(mol· cm ). The absorption is linear within the DHG content range of 0~5. 00 mg/50ml. This method is simple and rapid and has been successfully applied to determine the DHG content in gas generator propellants.