基于聚吡咯的平面型葡萄糖传感器的研究  

A Polypyrrole-modified Planar Glucose Sensor

作　　者：田承云[1] 曹大均[1] 章宗穰[1] 朱建中[2] 张国雄 

机构地区：[1]上海师范大学化学系,上海200234 [2]中国科学院上海冶金研究所传感技术国家重点实验室,上海200050

出　　处：《分析化学》1998年第7期854-857,共4页Chinese Journal of Analytical Chemistry

基　　金：上海市教育委员会技术基金

摘　　要：在含有葡萄糖氧化酶的聚吡咯修饰的铂电极表面涂覆一层明胶，再用戊二醛交联制备了葡萄糖传感器。该传感器的基础电极采用薄膜沉积和剥离技术制作，包括一个工作电极和一个对电极（兼作参比电极）。该传感器线性范围为 ０．１－４ ｍｍｏｌ／Ｌ；响应时间和灵敏度分别为１５－２５ ｓ和１８．１ｍＡ／ｍｏｌ．ｃｍ２。传感器在４℃冰箱中存放６个月其活性仍有９０％以上。A planar glucose sensor was fabricated by adsorbing glucose oxidase on the polypyrrole-modi fied platinum electrode, covering with a layer of gelatin, and finally cross-linking with glutaraldehyde. The transducer of the sensor is realized using thin-film deposition and lift-off techniques and consists of a two-electrode cell which has a working electrode and a counter electrode (also acts as a reference ele ctrode ). The developed sensor presents a linear range of 0. 1 - 4 mmol/L glucose; The response time and sensitivity were 15 - 25 s, 18. 1 mA/mol· cm2 respectively. The sensor retains more than 90% of inital response after storage(4℃ ) for sir months.

关 键 词：平面型 葡萄糖 传感器 聚吡咯 酶电极 测定 

分 类 号：O629.112[理学—有机化学] Q532.303[理学—化学]