MIPs logo MIPdatabase     MIP2018 Conference website
Custom Search
Reference type: Journal
Authors: Kong LJ, Pan MF, Fang GZ, He XL, Xia YQ, Wang S
Article Title: Electrochemical sensor based on a bilayer of PPY-MWCNTs-BiCoPc composite and molecularly imprinted PoAP for sensitive recognition and determination of metolcarb.
Publication date: 2015
Journal: RSC Advances
Volume: 5
Issue: (15)
Page numbers: 11498-11505.
DOI: 10.1039/C4RA13554G

Abstract: A molecularly imprinted electrochemical sensor for metolcarb (MTMC) detection was designed and constructed by electropolymerizing a poly-o-aminophenol (PoAP) membrane in the presence of MTMC after the modification of a composite that consisted of polypyrrole (PPY), functionalized multiwalled carbon nanotubes (MWNTs) and binuclear phthalocyanine cobalt(ii) sulfonate (BiCoPc) on a glassy carbon electrode (GCE) surface. The modified electrodes were characterized by scanning electron microscopy (SEM) and cyclic voltammetry (CV). The molecularly imprinted based sensor had a good binding ability toward MTMC upon measuring the variation of the amperometric response of the oxidation-reduction probe, K3Fe(CN)6. The relative peak current response was found to be proportional to the concentration of MTMC in the range of 1.0 x 10-8 to 0.6 x 10-6 mol L-1 with a detection limit of 7.88 x 10-9 mol L-1 (S/N = 3). This desirable sensitivity may be attributed to the presence of the PPY-MWNTs-BiCoPc composite layer, which enhanced the electrode surface area and amplified the current signal. The sensor showed good selective affinity toward MTMC, compared with similar molecules, with good reproducibility and long-term stability. The prepared sensor was successfully applied to the determination of the MTMC residue in spiked vegetable samples with satisfactory recoveries ranging from 88.8% to 93.3%
Template and target information: metolcarb, MTMC


  SMI logo cufflinks  Periodic table Smart hat  Lab Chick script shirt

Molecules Special Issue call     Sensors Special Issue call






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:
US listings   UK listings

Searching for Molecular Imprinting books on Amazon.com:
Molecular Imprinting
Imprinted Polymers
Polymer Chemistry
Organic Chemistry
Biosensors

Find what you need at Amazon.com

Lab supplies from Amazon