Abstract
A molecularly imprinted polymer/reduced graphene oxide (MIP/RGO)-based electrochemical sensor was developed for determining vanillin (VAN). The sensing element of MIP/RGO modified electrode was fabricated by successive in-situ electrodeposition of RGO and molecularly imprinted polypyrrole nanowires on a bare glassy carbon electrode surface. The RGO was utilized for signal amplification and the molecularly imprinted polypyrrole nanowires was used for specific recognition of VAN. VAN was detected by square-wave voltammetry using the redox probe of potassium ferricyanide. Under the optimized conditions, the MIP/RGO-based electrochemical sensor exhibited an ultra-wide linear response range of 10 pM to 100 μM and ultra-low limit of detection of 5.4 pM for VAN with the advantages of simplicity, good reproducibility, high stability and excellent selectivity. The proposed electrochemical sensor could also be employed to monitor picomole quantities of VAN in infant formula samples with good recoveries.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
