MIPs logo MIPdatabase      MIP2018 Conference website
Custom Search
Reference type: Journal
Authors: Zhan J, Fang GZ, Yan Z, Pan MF, Liu CC, Wang S
Article Title: Preparation of a semicovalent, molecularly surface imprinted polymer for the rapid determination of trace acid orange II in food and environmental samples.
Publication date: 2013
Journal: Analytical and Bioanalytical Chemistry
Volume: 405
Issue: (19)
Page numbers: 6353-6363.
DOI: 10.1007/s00216-013-7036-5

Abstract: In this work, molecularly imprinted polymer (MIP) particles were synthesized using a semicovalent method based on a specific thermally reversible bond, and these particles were used for the rapid detection of the azo dye acid orange II. The imprinted polymers-which were prepared via the covalent reaction of 3-(triethoxysilyl)propyl isocyanate with the template molecules-were attached to the surface of silica-coated magnetic nanoparticles, and a simple thermal reaction was then performed to remove the templates, leaving spaces with specific noncovalent bonds for target re-recognition. The conditions for the synthesis of the MIP were optimized during the polymerization experiments to improve the adsorption capacity and selectivity. The resulting polymers were characterized using Fourier transform infrared spectroscopy, scanning electron microscopy, and transmission electron microscopy to confirm their structure. The MIPs were subjected to an online solid-phase extraction and a magnetic molecularly imprinted solid-phase extraction procedure. For both methods, all samples were prepared with spiking levels of 5.0, 10.0, and 15.0 μg kg-1 using high-performance liquid chromatography with UV/vis detection; after the preconcentration of 50-mL sample solutions, the enhancement factors reached 710 and 629. The limits of detection (signal-to-noise ratio of 3) were 9.83 and 17.41 ng L-1, with relative standard deviations (n = 9) of 6.72 % and 8.25 %, respectively, for a 4.0 μg L-1 standard template solution. These two methods were developed to quantify trace acid orange II contents in food and environmental samples; the recoveries ranged from 72 to 105 % and from 70 to 94 %, respectively
Template and target information: acid orange II
Author keywords: Acid orange II molecularly imprinted polymer, Semicovalent, Solid-phase extraction, Food and environmental samples


  Periodic table Nerd shirt  Cryptic logo shirt  Woman of proper-tea mug in red

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