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Reference type: Journal
Authors: Shi XZ, Meng YA, Liu JH, Sun AL, Li DX, Yao CX, Lu Y, Chen J
Article Title: Group-selective molecularly imprinted polymer solid-phase extraction for the simultaneous determination of six sulfonamides in aquaculture products.
Publication date: 2011
Journal: Journal of Chromatography B
Volume: 879
Issue: (15-16)
Page numbers: 1071-1076.
DOI: 10.1016/j.jchromb.2011.03.019
Alternative URL: http://www.sciencedirect.com/science/article/B6X0P-52D51J4-4/2/8cf2b0554414ee979263b39fc85a343c

Abstract: Group-selective molecularly imprinted polymers (MIPs) made from sulfonamides (SAs) using functional monomer methacrylic acid (MAA) were synthesized. The derived molecularly imprinted solid-phase extraction (MISPE) cartridges were developed for the purification and enrichment of aquatic products. The optimum template molecule and the ratio of the functional monomer to the template for obtaining group selectivity to SAs were sulfadimethoxine (SDM) and 4:1, respectively. The MIPs were characterized by Brunauer-Emmett-Teller (BET), scatchard plot, and chromatography analysis, all of which demonstrate better chromatographic behavior and group-selectivity of MIPs for SAs compared with those of corresponding NIPs. The extraction conditions of MISPE for six SAs were optimized; the method precision and accuracy were satisfactory for the fish and shrimp samples at 0.05, 0.1, and 0.2 mg kg-1 spiked levels. Recoveries ranging from 85.5% to 106.1% (RSD, 1.2-7.0%, n = 3) were achieved. The limits of detection (S/N = 3) and quantitation (S/N = 10) in the shrimp and fish samples were achieved from 8.4 to 10.9 μg kg-1 and from 22.4 to 27.7 μg kg-1, respectively. Therefore, the obtained MIPs and MISPE can be employed for the enrichment and clean-up of SAs. This paper presents a new analytical method which enables the simultaneous determination and quantification of SAs in aquaculture products
Template and target information: sulfonamides, SAs, sulfadimethoxine, SDM, Sulfadiazine, SDZ, sulfamerazine, SM, sulfameter, SME, sulfamethazine, SMZ, sulfamethoxazole, SMX
Author keywords: Molecularly imprinted polymers, Sulfonamides (SAs), Group selectivity, Aquaculture products


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