MIPs logo MIPdatabase      MIP2024 Conference banner, website is now open, register on site for important updates   
Custom Search
Reference type: Journal
Authors: Qi PP, Wang J, Wang ZW, Wang X, Wang XY, Xu XH, Xu H, Di SS, Zhang H, Wang Q, Wang XQ
Article Title: Construction of a probe-immobilized molecularly imprinted electrochemical sensor with dual signal amplification of thiol graphene and gold nanoparticles for selective detection of tebuconazole in vegetable and fruit samples.
Publication date: 2018
Journal: Electrochimica Acta
Volume: 274
Page numbers: 406-414.
DOI: 10.1016/j.electacta.2018.04.128
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0013468618308880

Abstract: A probe-immobilized molecularly imprinted electrochemical sensor was constructed for selective determination of tebuconazole in vegetable and fruit samples. Thiol graphene was introduced onto a glassy carbon electrode modified with gold nanoparticles to increase its specific surface area. Prussian blue was co-deposited with gold nanoparticles on the modified electrode and served as the immobilized probe, followed by electro-polymerization of the molecularly imprinted polymer film as the recognition element. Systematic validation and characterization were performed to verify the successful preparation and mechanisms of the Prussian blue and molecularly imprinted polymers in the electrode. Several important parameters, including monomer concentration, scan cycles and pH, were systematically varied to elucidate their influence on the performance of the sensor. Meanwhile, the surface features of the modified electrode were characterized using scanning electron microscopy, atomic force microscopy, cyclic voltammetry and electrochemical impedance spectroscopy. The optimized sensor demonstrated a wide linear range from 5.0 x 10-8 mol L-1 to 4.0 x 10-4 mol L-1 with a detection limit of 1.25 x 10-8 mol L-1. The proposed sensor exhibited specific recognition of tebuconazole in selectivity experiments and contrast tests. Furthermore, the sensor can be used for detection of tebuconazole in real samples with satisfactory recoveries
Template and target information: tebuconazole
Author keywords: Molecular imprinted electrochemical sensor, Tebuconazole, Thiol graphene, Prussian blue


  mipdatabase.com logo imprinters do it in bulk shirt  Science Teacher peptide mug  Perpetual student shirt






 

Join the Society for Molecular Imprinting
Logo of the Society for Molecular Imprinting

New items RSS feed
new items RSS feed  View latest updates

Sign-up for e-mail updates:
Choose between receiving an occasional newsletter or more frequent e-mail alerts.
Click here to go to the sign-up page.


Is your name elemental or peptidic? Enter your name and find out by clicking either of the buttons below!
Other products you may like:
view listings for MIP books on eBay:



Mickey Mouse 90th Anniversary banner