摘要
利用化学沉积法和恒电流沉积法制备了钯-镍/硅纳米线(Pd-Ni/SiNWs)。以钯-镍/硅纳米线作为工作电极,铂电极为对电极,银-氯化银电极为参比电极,从而构建了一种二量程的无酶电化学果糖传感器。以0.1 mol/L KOH为背景溶液,分别采用循环伏安法(CV)和计时电流法(CA)进行果糖的定量检测。循环伏安法得出果糖检测量程为5~50 mmol/L,灵敏度为0.061 6 mA/(cm^2·mmol/L);计时电流法检测果糖量程为0~7 mmol/L,灵敏度为31.185 2μA/(cm^2·mmol/L),检测限为7.6μmol/L。该种电化学无酶传感器可以实现果糖的快速准确检测。
Palladium-nickel / silicon nanowires were prepared by chemical deposition process and galvanostatic electro deposition.A two ranges no-enzyme electrochemical fructose sensor was structured with the palladium-nickel / silicon nanowire as the working electrode,Pt and saturated Ag / Ag Cl served as the counter and reference electrode,respectively. Cyclic voltammetry（ CV） and chronoamperometry（ CA） were used for detecting the fructose quantificationally in the background of 0. 1 mmol / L KOH. The result of CV measures show that the range was 5 ~ 50 mmol / L and the sensitivity was 0. 061 6 m A /（ cm^2·mmol/L） and the result of CA measures indicat that the range was 0 ~ 7 mmol / L,the sensitivity was 31. 185 2 μA /（ cm^2·mmol/L） and the detection limits was 7.6μmol / L. This kind of electrochemical nonenzymatic sensor can detect the fructose rapidly and accurately.
出处
《仪表技术与传感器》
CSCD
北大核心
2016年第10期6-9,共4页
Instrument Technique and Sensor
基金
国家自然科学基金项目(61204127)
黑龙江省自然科学基金项目(F201332
F201438)
黑龙江省高校科技成果产业化前期研发培育项目(1254CGZH04)
齐齐哈尔市科学技术计划项目(GYGG-201409
GYGG2010-03-01)
关键词
硅纳米线
果糖
传感器
silicon nanowire
fructose
sensor
