摘要
将玻碳电极置于0.1或0.2mol/L NaOH溶液中,采用恒电位(0.75V vs SCE)或电位扫描(0～0.75 V)的方式氧化测定葡萄糖、蔗糖、果糖等碳水化合物,检测下限达1μg/mL,电极的重现性良好,使用寿命长,葡萄糖的检测范围为0.1～5×10^(16)mol/L.初步探讨了反应机理。
The determination of carbohydrate, such as glucose, fructose, maltose, lactose, sucrose, glycerol etc. was carried out with glassy carbon electrode by constant potential oxidation (0. 75 V vs. SCE) or potential sweep oxidation(0. 2-0. 75 V) in 0. 1 or 0. 2 mol/L NaOH solution. The lowest detection limit is 1 μg/mL, A better repeatability and long useful lifetime are obtained. The detection range of glucose is 0.1-5×10-6 mol/L. The response mechanism is discussed in this paper.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1991年第10期1316-1319,共4页
Chemical Journal of Chinese Universities
关键词
葡萄糖
玻碳电极
电化学
Electrochemical oxygen evolution, Electrochemical oxidation, Glassy carbon electrode, Glucose, Carbohydrate
