Analysis of malachite green in aquatic products by carbon nanotube-based molecularly imprinted - matrix solid phase dispersion

Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Yu Wang, Ligang Chen

Abstract

A simple method based on matrix solid phase dispersion (MSPD) using molecularly imprinted polymers (MIPs) as sorbents for selective extraction of malachite green (MG) from aquatic products was developed. The MIPs were prepared by using carbon nanotube as support, MG as template, methacrylic acid as functional monomer, ethyleneglycol dimethacrylate as crosslinker and methylene chloride as solvent. The MIPs were characterized by Fourier transform infrared spectrometry and transmission electron microscopy. The isothermal adsorption, kinetics absorption and selective adsorption experiments were carried out. We optimized the extraction conditions as follows: the ratio of MIPs to sample was 2:3, the dispersion time was 15min, washing solvent was 4mL 50% aqueous methanol and elution solvent was 3mL methanol-acetic acid (98: 2, v/v). Once the MSPD process was completed, the MG extracted from aquatic products was determined by high performance liquid chromatography. The detection limit of MG was 0.7μgkg(-1). The relative standard deviations of intra-day and inter-day were obtained in the range of 0.9%-4.7% and 3.4%-9.8%, respectively. In order to evaluate the applicability and reliability of the proposed method, it was applied to determ...Continue Reading

References

Jul 11, 2006·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Kim-Chung LeeZongwei Cai
Aug 26, 2006·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Kirsi HalmeKimmo Peltonen
Nov 28, 2006·Journal of Biochemical and Biophysical Methods·Sara Bogialli, Antonio Di Corcia
Oct 8, 2011·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Fengxia Qiao, Hongyuan Yan
Oct 9, 2012·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Hongyuan YanKun Han
Nov 5, 2013·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Yansuo Hong, Ligang Chen
Jun 11, 2014·Journal of Chromatography. a·Bárbara Socas-RodríguezJavier Hernández-Borges
Oct 13, 2014·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Salah Khanahmadzadeh, Ahmad Tarigh

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Citations

Mar 10, 2017·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Lucia Mainero RoccaPierpaolo Tomai
May 15, 2018·Critical Reviews in Analytical Chemistry·Xinhui ZhouDaoliang Li
Oct 28, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Xijuan Tu, Wenbin Chen

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