动力学光度法测定碳酰肼产品的纯度  

KINETIC SPECTROPHOTOMETRIC DETERMINATION OF PURITY OF CARBOHYDRAZIDE

作　　者：伍涛[1] 张同来[1] 陈红艳[1] 刘伟华[1] 张建国[1] 

机构地区：[1]北京理工大学爆炸灾害预防控制国家重点实验室,北京100081

出　　处：《理化检验（化学分册）》2006年第9期732-733,共2页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：基于碳酰肼与孔雀石绿反应生成无色物质，建立了简单、快速、准确的动力学光度法测定碳酰肼产品纯度的方法。测定了表观反应速率常数，并对反应机理进行研究，该方法测定范围为4×10^—3～50×10^-3mol·L^-1，方法检出限为1.0×10^-3mol·L^-1。A simple, rapid and accurate kinetic method for the determination of purity of carbohydrazide product was described. The method was based on the reaction between carbohydrazide and malachite green to form a colorless compound. The apparent reaction rate constant was determined and the reaction mechanism was studied. The linear calibration curve was in range of 4 × 10^-3- 50× 10^-3 mol. L^-1 for carbohydrazide with a limit of detection of 1, 0 × 10^-3 mol . L^-1. The method has been applied to the determination of purity of carbohydrazide product

关 键 词：动力学光度法 碳酰肼 纯度 

分 类 号：O657.3[理学—分析化学]