| 维生素B2在玻碳电极上的伏安行为及痕量检测 |
| |
| 引用本文： | 刘武胜,张娟琨,卢金辉,白丽荣,董杉木.维生素B2在玻碳电极上的伏安行为及痕量检测[J].生物加工过程,2009,7(3):73-77. |
| |
| 作者姓名： | 刘武胜 张娟琨 卢金辉 白丽荣 董杉木 |
| |
| 作者单位： | 天津科技大学,工业微生物教育部重点实验室,生物工程学院,天津,300457 |
| |
| 摘 要： | 玻碳电极在活化后，在pH=5．6的柠檬酸-磷酸二氢钠缓冲体系中，在-0．8—0．1V范围内进行循环伏安扫描，可观察到明显的准可逆氧化还原峰，峰电流与扫速成正比。实验表明，VB2在玻碳电极表面有弱吸附现象，VB2浓度与峰电流在1．0×10^-5～2．0×10^-4moL／L之间线性关系较好，最低检测隈为5．0×10^-7mol／L。
|
| 关 键 词： | 维生素B2 循环伏安 玻碳电极 |
Trace vitamin B2 determination with glassy carbon electrode and electrochemical behavior |
| |
| LIU Wu-sheng,ZHANG Juan-kun,LU Jin-hui,BAI Li-rong,DONG Shan-mu.Trace vitamin B2 determination with glassy carbon electrode and electrochemical behavior[J].Chinese Journal of Bioprocess Engineering,2009,7(3):73-77. |
| |
| Authors: | LIU Wu-sheng ZHANG Juan-kun LU Jin-hui BAI Li-rong DONG Shan-mu |
| |
| Institution: | ( Key Laboratory of Industrial Microbiology of the Ministry of Education, College of Bioengineering, Tianjin University of Science and Technology, Tianjin 300457, China) |
| |
| Abstract: | With activated electrode and citric acid/Nail2 PO4 （pH 5.6 ） buffer system, CV scan with GCE was carried out in the range of -0. 8 V to 0. 1 V. Quasi-reversible redox peak was clearly observed. Peak current was proportional to scan rate. The experiment also showed a phenomenon of weak adsorption of vitamin B2 on the GCE surface. There was a linear relation between Vitamin B2 concentration and peak current between 1.0 ×10^-5mol/L to 2.0 ×10^-4mol/L mol/L. The determination limit was 5.0 ×10^-7mol/L. |
| |
| Keywords: | vitamin B2 cyclic vohammetry glassy carbon electrode |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
