基于三维多孔泡沫镍材料的乳糖传感器研究  

Study of Lactose Sensor Using 3-D Porous Ni Foam Materials

作　　者：朱静宜[1] 张亶[2] 

机构地区：[1]浙江长征职业技术学院计算机与信息技术系,杭州310023 [2]浙江大学计算机科学与技术学院,杭州310027

出　　处：《传感技术学报》2015年第9期1303-1306,共4页Chinese Journal of Sensors and Actuators

基　　金：国家自然基金项目(61305030);浙江省自然科学基金项目(Y107003);浙江省高技能人才培养和技术创新活动计划项目(2013R30056)

摘　　要：提出了一种基于三维多孔泡沫镍的乳糖传感器,采用泡沫镍材料作为工作电极,铂电极作为对电极,在0.1 M的NaOH碱性环境中以循环伏安法(CV)和电流-时间曲线法(i-t)建立了乳糖定量检测方法,循环伏安扫描结果证明乳糖可以被泡沫镍氧化,电流-时间检测结果表明乳糖在0.2 mmol/L^3.5 mmol/L的线性浓度范围内,泡沫镍检测乳糖的灵敏度为9.433 1m A/(cm2·mmol/L),检测限为6.8μmol/L。本文所研究的乳糖传感器具有响应速度快、成本低、高灵敏度、低检测限等优势,具有较好的实际应用价值。A lactose sensor using 3-D porous Ni foam material was investigated. N1 loam material was u seu as working electrode, and Pt electrode was used as counter electrode. In 0.1 M NaOH solution, cyclic voltammetry（CV）and amperometric current-time （i-t）methods were utlized to quantitatively measure lactose. CV scanning results indicat- ed that lactose could be easily oxidized on the surface of Ni foam electrode. I-t measurement results demonstrated that this sensor presented a sensitivity of 9.433 1 mA/（cm^2 ·mmol/L） in linear range from 0.2 mmol/L to 3.5 mmol/L. Its detecting limit was 6.8 μmol/L. This sensor had some anvantages including fast response,low cost, high sensitivi- ty, low detecting limint, etc. It is promising in practical applications.

关 键 词：乳糖 泡沫镍 传感器 电化学 定量分析 

分 类 号：TP212.6[自动化与计算机技术—检测技术与自动化装置]