TITLE:
Fast Determination of Vitamin B2 Based on Molecularly Imprinted Electrochemical Sensor
AUTHORS:
Peidong Xu, Changsheng Qiao, Shufeng Yang, Lijuan Liu, Mingwei Wang, Juankun Zhang
KEYWORDS:
Vitamin B2; Molecularly Imprinted Technique; Potentiostatic Polymerization; O-aminophenol; Drug Determination
JOURNAL NAME:
Engineering,
Vol.4 No.10B,
October
21,
2013
ABSTRACT: 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%.