Development of a group selective molecularly imprinted polymers based solid phase extraction of malachite green from fish water and fish feed samples

Analytica Chimica Acta
Ya-Hui LiAnping Deng

Abstract

A group selective molecularly imprinted solid phase extraction (MISPE) for malachite green (MG) from fish water and fish feed samples was developed. Using MG as template molecule, methacrylic acid as functional monomer, ethylene glycoldimethacrylate as linking agent and bulk polymerization as synthetic method, the molecularly imprinted polymers (MIPs) were synthesized and characterized with rebinding experiment. The Scatchard polt's analysis revealed that the template-polymer system showed the two-site binding behavior with dissociation constants of 0.3194 micromol L(-1) and 15.70 micromol L(-1), respectively. MG and two structurally related compounds, leucomalachite green (LMG) and crystal violet (CV) were employed for selectivity test. The MIPs exhibited the highest selective rebinding to MG, but also displayed 83.0% and 87.5% of cross-reactivity with LMG and CV, demonstrating that MIPs could be used as group recognition sorbents in solid phase extraction. The extraction conditions of MISPE column for MG were optimized. Tap water samples spiked with MG at concentration of 0.5-10 ng mL(-1) were extracted by MISPE column and analyzed by high performance liquid chromatography. The recoveries of MISPE column for MG extraction wer...Continue Reading

References

Apr 23, 2003·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Aldert A Bergwerff, Peter Scherpenisse
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Citations

Apr 5, 2014·Journal of Molecular Recognition : JMR·Michael J WhitcombeIan A Nicholls
Feb 15, 2014·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Kamran AbroShahnaz Perveen
May 15, 2018·Critical Reviews in Analytical Chemistry·Xinhui ZhouDaoliang Li
Oct 7, 2014·Chemical Communications : Chem Comm·Shaona ChenJingyao Qi
Mar 13, 2018·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Mohammad T JafariHajar Bahrami
Apr 21, 2009·Analytical Chemistry·Soledad Rubio, Dolores Pérez-Bendito

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