丁香醛连氮测定饮水中余氯的机理探讨  

Studies on mechanism of reaction of measuring residual chlorine in drinking water with syringaldazine

作　　者：梁军[1] 陈奇洲[1] 张贵珠[2] 陈鼎[2] 

机构地区：[1]军事医学科学院卫生学环境医学研究所 [2]南开大学化学系

出　　处：《军事医学科学院院刊》1993年第4期266-270,共5页Bulletin of the Academy of Military Medical Sciences

基　　金：国家自然科学基金资助课题

摘　　要：丁香醛连氮是测定饮水中余氯的新试剂,但其反应产物的稳定性差,重现性不好,因而限制其推广应用。通过可见光光度分析,紫外分光光度分析,红外光谱分析及核磁共振波谱分析,基本搞清了丁香醛连氮与余氯的反应机理和过程,反应产物不稳定是由于产物与反应物之间的相互转化。随着时间的推移,反应产物大部又转化为反应物——丁香醛连氮。从而为提高反应产物的稳定性,增加方法的实用性,提供了依据。Syringaldazine is a new reagent for measuring residual chlorine in drinking water, but the reaction product is unstable and the reproducibility is poor; there by, it can not be widely used. On basis of visible, UV, IR, NMR spectroscopy, the mechanism and procedure of the reac- tion between syringaldazine and residual chlorine were determined. The instability of reaction product was the result of reaction between the reactant and the reaction product. As the time went by, most of the reaction product was shifted to syringaldazine again. Thus the basis for improving the stability of reaction product and increasing the practicability of this method is provided.

关 键 词：丁香醛连氮 剩余氯 反应机理 

分 类 号：R123.1[医药卫生—环境卫生学]