十六烷基三辛碘化铵修饰BLM传感器的研究

A NEW SENSOR FOR IODIDE BASED ON MODIFIED BILAYER LIPID MEMBRANE ON SOLID SUPPORT

制备了十六烷基三辛碘化铵修饰铂基支撑双层类脂膜（ＢＬＭ）传感器，研究了它对Ｉ－的响应情况．结果表明，十六烷基三辛碘化铵修饰ＢＬＭ传感器对Ｉ－在１０－６～１０－２ｍｏｌ／Ｌ范围内符合Ｎｅｒｎｓｔ关系．

A Pt-supported BLM to be modified by ammonium hexadecyl trioctyl iodide has been prepared.The changes in potential of the process of BLM formation on a new cut tip surface and its potential response to iodide ion have been investigated.The results show that iodide ion concentrations in the range of 10-6～10-2 mol/L obey Nernst equation,with a response slope of 57 mV and a detection limit of 10-7 mol/L I-.