纯水与自来水中氰离子的比色检测  

Colorimetric Detection of Cyanide Ion in Pure Water and Tap Water

作　　者：何进军 王军[1] 陈敏 杨欢 陈治明[1] 张金生[1] He Jinjun;Wang Jun;Chen Min;Yang Huan;Chen Zhiming;Zhang Jinsheng(Key Lab of Functional Materials Chemistry of Guizhou Province,School of Chemistry and Materials Science,Guizhou Normal University,Guiyang,550001)

机构地区：[1]贵州省功能材料化学重点实验室贵州师范大学化学与材料科学学院,贵阳550001

出　　处：《化学通报》2021年第6期585-590,514,共7页Chemistry

基　　金：国家自然科学基金项目(21362006)资助。

摘　　要：设计合成了水溶性比色传感器磺酸功能化的偶氮水杨醛吖嗪(S),其结构经由1H NMR,ESI-MS确证。S在纯水与自来水中对氰离子(CN-)具有专一选择性的比色检测能力,最低检出限分别为0.16和0.63μmol/L。可逆的质子转移检测机制赋予S循环再利用的优势,借助于检测试纸,实现了CN-可逆的比色检测。该工作为纯水相中CN-的检测提供了实验依据。A water-soluble colorimetric sensor(S)was well designed and synthesized,and its structure was characterized by 1H NMR,ESI-MS.In pure water and tap water,S displayed exclusively selectivity for CN-with the detection limits of 0.16μmol/L and 0.63μmol/L,respectively.The detection mechanism of proton transfer was fully reversible,which endows the advantage of reusability of S.The reversible colorimetric detection of CN-could be achieved based on the test strip.This work may provide a feasible experiment reference for CN-detection in pure water.

关 键 词：氰离子 比色检测 偶氮酚羟基 脱质子 检测试纸 

分 类 号：TU991.21[建筑科学—市政工程] O657.3[理学—分析化学]