MIPs logo MIPdatabase      MIP2020 Conference logo Use this space
Custom Search
Reference type: Journal
Authors: Santos WdJR, Santhiago M, Yoshida IVP, Kubota LT
Article Title: Novel electrochemical sensor for the selective recognition of chlorogenic acid.
Publication date: 2011
Journal: Analytica Chimica Acta
Volume: 695
Issue: (1-2)
Page numbers: 44-50.
DOI: 10.1016/j.aca.2011.03.018
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0003267011003655

Abstract: In this study, a novel sensitive molecularly imprinted electrochemical sensor was constructed for the selective detection of chlorogenic acid (CGA) by deposition of a molecularly imprinted siloxane (MIS) film, prepared by sol-gel process, onto Au bare electrode surface. Initially, a (3-mercaptopropyl)siloxane layer (MSL) was formed on the Au bare surface, followed by a siloxane layer obtained from the acid-catalyzed hydrolysis/condensation of a solution constituted by tetraethoxysilane (TEOS), phenyltriethoxysilane (PTEOS), 3-(aminopropyl)trimethoxysilane (APTMS) and CGA, as a molecular template. After the GCA extraction the MIS imprinted film was electrochemically characterized using differential pulse voltammetry (DPV). The MIS/Au sensor was tested in a solution of the CGA template and other similar molecules. This electrode displayed excellent selectivity towards CGA when compared with structurally similar molecules. Under optimized experimental conditions, the peak current response of the sensor for CGA was linear from 5.0 x 10-7 mol L-1 to 1.4 x 10-5 mol L-1, and the detection limit was 1.48 x 10-7 mol L-1. The MIS/Au sensor was successfully applied for the determination of CGA in coffee and tea samples
Template and target information: chlorogenic acid, CGA
Author keywords: Molecularly imprinted siloxane, sol-gel, sensor, Chlorogenic acid recognition


  Mister Benzene Comic Strip greetings card  Chemistry peptide mug  Beach bunny periodic table shirt

Molecules Special Issue call      Appeal for information






 

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