中性载体水杨酸根离子电极的研究  

Study on carriers of highly selective salicylate electrode

作　　者：孙志勇[1] 冯丽娟[1] 邓镇涛[1] 吴庆[2] 

机构地区：[1]遵义医学院珠海校区化学教研室,广东珠海519041 [2]遵义医学院基础化学教研室,贵州遵义563003

出　　处：《化学研究与应用》2010年第9期1158-1161,共4页Chemical Research and Application

基　　金：遵义医学院珠海校区科研启动基金资助项目(KY200604)

摘　　要：A new highly selective salicylate electrode based on N,N’-bis(3-nitrosalicylidene)-2,6-Pyridinediamine manganese(Ⅱ) complex[Mn(Ⅱ)-BNSPD]as neutral carrier is studied first,which displays an excellent electric potential response and an anti-Hofmeister selectivity sequence which is:Sal->SCN-> ClO4-> I-> Br-> NO3-> Cl-> NO2-> SO32-> SO42-.The electrode exhibits Nernstian potential linear range to salicylate from 1.0×10-1 to 6.0×10-6 mol·dm-3 with a detection limit 2.0×10-6 mol·dm-3 and a slope of 58.5 mV/dec in pH 5.0 of phosphorate buffer solution at 28℃.The electrode response mechanism is studied with the UV spectroscopy technology.The electrode is designed to be applied in medicine analysis with a satisfactory result worked out.A new highly selective salicylate electrode based on N,N＇-bis（3-nitrosalicylidene）-2,6-Pyridinediamine manganese（Ⅱ） complex[Mn（Ⅱ）-BNSPD]as neutral carrier is studied first,which displays an excellent electric potential response and an anti-Hofmeister selectivity sequence which is：Sal-SCN- ClO4- I- Br- NO3- Cl- NO2- SO32- SO42-.The electrode exhibits Nernstian potential linear range to salicylate from 1.0×10^-1 to 6.0×10^-6 mol·dm^-3 with a detection limit 2.0×10^-6 mol·dm^-3 and a slope of 58.5 mV/dec in pH 5.0 of phosphorate buffer solution at 28℃.The electrode response mechanism is studied with the UV spectroscopy technology.The electrode is designed to be applied in medicine analysis with a satisfactory result worked out.

关 键 词：N N’-二(3-硝基亚水杨基)-2 6-吡啶二氨 水杨酸根离子 离子选择性电极 中性载体 

分 类 号：O622.5[理学—有机化学]