基于Au-Ni复合材料的新型葡萄糖传感器的研究  

A novel glucose sensor based on Au-Ni as composite matrix

作　　者：姚天明[1] 杨卉彦[1] 齐骏飞[1] 王炜祺[1] 黄杉生[1] 

机构地区：[1]上海师范大学生命与环境科学学院,上海200234

出　　处：《化学传感器》2011年第3期54-61,共8页Chemical Sensors

基　　金：上海市科委项目(08520510400)

摘　　要：利用新型Au—Ni复合材料，通过壳聚糖将Au—Ni复合材料修饰到电极表面．制备了一种新型的用于葡萄糖检测的电化学传感器。以XRD表征了Au—Ni材料，以循环伏安法，交流阻抗法，计时电流等电化学方法研究了此传感器的电化学特性。研制的电极对葡萄糖检测的线性范围为2．5×10^-9．5×10^-4mol／L，检测限为lxl0^-5mol／L。常见的尿酸和抗坏血酸对葡萄糖检测不干扰。A novel sensor for the determination of glucose was prepared by immobilizing Chitsosan and Au-Ni composite matrix on the surface of glassy carbon electrode. The preparation of Au-Ni was characterized by XRD, and the electrochemical characteristics of the sensor was investigated by cyclic vohammetry, ae impedance method and amperometric i-t curve. The method showed good linearly for 2.5 x 10-5- 9.5 x 10-4 mol/L glucose with a detection limit of 1 x 10-5 mol/L The correlation coefficient was 0.995 O. Some common orgaNic acids such as uric acid and aseorbic acid did not interfere with the detection of glucose.

关 键 词：Au—Ni 传感器 检测葡萄糖 

分 类 号：R318.08[医药卫生—生物医学工程] TP212.3[医药卫生—基础医学]