Fast Determination of Vitamin B2 Based on Molecularly Imprinted Electrochemical Sensor


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%.

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P. Xu, C. Qiao, S. Yang, L. Liu, M. Wang and J. Zhang, "Fast Determination of Vitamin B2 Based on Molecularly Imprinted Electrochemical Sensor," Engineering, Vol. 4 No. 10B, 2012, pp. 129-134. doi: 10.4236/eng.2012.410B034.

Conflicts of Interest

The authors declare no conflicts of interest.


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