MIPs logo MIPdatabase      Special issue call for papers   
Custom Search
Reference type: Journal
Authors: Wang XL, Qiao XG, Ma Y, Zhao T, Xu ZX
Article Title: Simultaneous Determination of Nine Trace Organophosphorous Pesticide Residues in Fruit Samples Using Molecularly Imprinted Matrix Solid-Phase Dispersion Followed by Gas Chromatography.
Publication date: 2013
Journal: Journal of Agricultural and Food Chemistry
Volume: 61
Issue: (16)
Page numbers: 3821-3827.
DOI: 10.1021/jf400269q

Abstract: How to determine trace multipesticide residues in fruits is an important problem. This paper reports a molecularly imprinted polymer (MIP) that was prepared using 4-(dimethoxyphosphorothioylamino)butanoic acid as the template, acrylamide as the functional monomer, and ethylene glycol dimethacrylate (EGDMA) as the cross-linker. The novel imprinted polymer was characterized by static and kinetic adsorption experiments, and it exhibited good recognition ability and fast adsorption-desorption dynamic toward trichlorfon, malathion, acephate, methamidophos, omethoate, dimethoate, phosphamidon, monocrotophos, and methyl parathion. Using this imprinted polymer as sorbent, matrix solid-phase dispersion coupled to gas chromatography for simultaneous determination of nine trace organophosphorus pesticide residues was first presented. Under the optimized conditions, the LOD (S/N = 3) of this method for the nine organophosphorus was 0.3 - 1.6 μg kg-1; the RSD for three replicate extractions ranged from 1.2 to 4.8%. The apple and pear samples spiked with nine organophosphate pesticides at levels of 20 and 100 μg kg-1 were determined according to this method with good recoveries ranging from 81 to 105%. Moreover, this developed method was successfully applied to the quantitative detection of the nine organophosphorus pesticide residues in orange samples
Template and target information: 4-(dimethoxyphosphorothioylamino)butanoic acid, trichlorfon, malathion, acephate, methamidophos, omethoate, dimethoate, phosphamidon, monocrotophos, methyl parathion
Author keywords: molecular imprinting, Matrix solid-phase dispersion, Multipesticide residues, gas chromatography

  SMI logo mug  Periodic table Posh shirt  Lab Chick script 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