Fast Determination of Vitamin B₂Based on Molecularly Imprinted Electrochemical Sensor  

作　　者：Peidong Xu Changsheng Qiao Shufeng Yang Lijuan Liu Mingwei Wang Juankun Zhang 

机构地区：[1]Key Laboratory of Industrial Microbiology, Ministry of Education, College of Bioengineering, Tianjin Key Laboratory of Industry Microbiology, College of Bioengineering, Tianjin University of Science & Technology, TUST, Tianjin, P.R.China

出　　处：《Engineering（科研）》2012年第10期129-134,共6页工程（英文）（1947-3931）

摘　　要：Under the condition of weak acidity of pH 5.2, a sensitive vitamin B2 electrochemical sensor based on molecularly imprinted nonconducting polymer of o-aminophenol by potentiostatic polymerization in the presence of template(vitamin B2) on a glassy carbon electrode was prepared, and its performance was studied. The sensor exhibited good sensitivity and selectivity to VB2. The detection limit went down to 2.3851nM, and a linear relationship between the current incremental and the concentration was found in the range of 10~120nM. And the sensor could use in detection of VB2 real sample for a long time and show good reproducibility. The average recovery rate to VB2 was 98.41%.Under the condition of weak acidity of pH 5.2, a sensitive vitamin B2 electrochemical sensor based on molecularly imprinted nonconducting polymer of o-aminophenol by potentiostatic polymerization in the presence of template(vitamin B2) on a glassy carbon electrode was prepared, and its performance was studied. The sensor exhibited good sensitivity and selectivity to VB2. The detection limit went down to 2.3851nM, and a linear relationship between the current incremental and the concentration was found in the range of 10~120nM. And the sensor could use in detection of VB2 real sample for a long time and show good reproducibility. The average recovery rate to VB2 was 98.41%.

关 键 词：VITAMIN B2 Molecularly Imprinted Technique POTENTIOSTATIC Polymerization O-AMINOPHENOL Drug DETERMINATION 

分 类 号：O6[理学—化学]