食品科学2012，Vol.33Issue(10)：311-314,4.
基于金钯纳米合金修饰的过氧化氢传感器的研制
Development of Hydrogen Peroxide Sensor Modified by Gold-Palladium Nano-Alloys
摘要
Abstract
A new type of biosensor for detecting hydrogen peroxide in food residues was developed through modification of gold-palladium nano-alloys on the glassy carbon electrode.Due to large surface area,good biocompatibility and excellent catalytic properties of nano particles,the gold-palladium nano-alloy was used to immobilize horseradish peroxidase（HRP） on glassy carbon electrode.The electrochemical properties of electrode surface during each fabrication procedure were characterized by cyclic voltammetry and AC impedance method and the sensor performance of this sensor was evaluated by chronoamperometry.The results revealed that the hydrogen peroxide sensor had a good linear relationship in the range of 1 × 10-7—5 × 10-3mol/L for H2O2and the limit of detection was 8.0×10-7mol/L.It had better catalytic activity and good detection performance for detecting hydrogen peroxide.Moreover,this hydrogen peroxide sensor proved inexpensive,easy to use and strong repeatability,thus it is applicable for the hydrogen peroxide in food residues.关键词
过氧化氢传感器/金钯合金纳米粒子/玻碳电极/计时电流法Key words
hydrogen peroxide sensor/gold-palladium nano-alloys/chronoamperometry/AC impedance分类
轻工纺织引用本文复制引用
朱伟明,梁新义,庞广昌,康晓斌,崔兰..基于金钯纳米合金修饰的过氧化氢传感器的研制[J].食品科学,2012,33(10):311-314,4.基金项目
天津市自然科学基金项目 （）
天津市自然科学基金重点项目 （）
教育部留学回国人员科研启动基金项目 （）
“十一五”国家科技支撑计划项目 （）
