International Journal of Materials Science and Applications
Volume 5, Issue 3, May 2016, Pages: 160-163
Received: Jun. 14, 2016;
Accepted: Jun. 28, 2016;
Published: Jul. 13, 2016
Views 3943 Downloads 97
Wei Yao, Center for Disease Control and Prevention, Agency for Offices Administration, Beijing, China
Shanyu Wang, Center for Disease Control and Prevention, Agency for Offices Administration, Beijing, China
Baofeng Xu, Center for Disease Control and Prevention, Agency for Offices Administration, Beijing, China
Hong Yin, Center for Disease Control and Prevention, Agency for Offices Administration, Beijing, China
Zhixian Gao, Institute of Hygiene and Environmental Medicine, Tianjin, China
To obtain the desired specific adsorbents for chlorpyrifos to enrichment, separation and analysis of trace pesticides residue, molecularly imprinted polymer microspheres were prepared by precipitation polymerization using chlorpyrifos and methacylic acid (MAA) as template and functional monomer respectively. Computer simulation was employed to demonstrate the mechanism of the interaction between chlorpyrifos and MAA. The adsorption properties of chlorpyrifos, in acetonitrile for imprinted microspheres were evaluated by equilibrium rebinding experiments. Scatchard plot analysis revealed that there was a class of binding sites populated in the molecularly imprinted polymers (MIPs). The specificity of the imprinted microspheres was investigated by binding analysis using chlorpyrifos and related organophosphate pesticides. The results indicated that the obtained imprinted microspheres showed a good selectivity for chlorpyrifos.
Molecularly Imprinted Microspheres for the Adsorption of Chlorpyrifos, International Journal of Materials Science and Applications.
Vol. 5, No. 3,
2016, pp. 160-163.
USEPA, Preliminary Cumulative Risk Assessment of the Organophosphorus Pesticides, USEPA, Washington, DC, (2001).
Reyzer, M. L., Brodbelt, J. S., Analysis of fire ant pesticides in water by solid-phase microextraction and gas chromatography/mass spectrometry or high-performance liquid chromatography/mass spectrometry. Anal. Chim. Acta, 436, 11-20 (2001).
Díaz-Cruz, M. S., Barceló, D., Highly selective sample preparation and gas chromatographic–mass spectrometric analysis of chlorpyrifos, diazinon and their major metabolites in sludge and sludge-fertilized agricultural soils. J. Chromatography A, 1132, 21–27 (2006).
Ballesteros, E., Gallego, M., Valcarcel, M., Automatic gas chromatographic determination of N-methylcarbamates in milk with electron capture detection. Anal. Chem., 65, 1773-1778 (1993).
Li, H., Liu, Y. J., Zhang, Z. H., Liao, H. P., Nie, L. H., Yao, S. Z., Separation and purification of chlorogenic acid by molecularly imprinted polymer monolithic stationary phase. J. Chromatography A, 1098, 66-74 (2005).
Yan, S. L., Fang, Y. J., Gao, Z. X., Quartz crystal microbalance for the determination of daminozide using molecularly imprinted polymers as recognition element. Biosens. Bioelectron., 22, 1087-1091 (2007).
Alexander, C., Andersson, H. S., Andersson, L. I., Ansell, R. J., Kirsch, N., Nicholls, I. A., O’ Mahony, J., Whitcombe., M. J., Molecular imprinting science and technology: a survey of the literature for the years up to and including 2003. J. Mol. Recognit. 19, 106-180 (2006).
Mahony, J. O., Nolan, K., Smyth, M. R., Mizaikoff. B., Molecularly imprinted polymers—potential and challenges in analytical chemistry Anal. Chim. Acta, 534, 31-39 (2005).
Mayes, A. G., Whitcombe, M. J., Synthetic strategies for the generation of molecularly imprinted organic polymers. Adv. Drug Deliv. Rev., 57, 1742-1778 (2005).
Piletska, E., Piletsky, S., Karim, K., Terpetschnig, E., Turner, A., Biotin-specific synthetic receptors prepared using molecular imprinting. Anal. Chim. Acta, 504, 179-183 (2004).
Zhang, L. Y., Cheng, G. X., Fu, C., Synthesis and characteristics of tyrosine imprinted beads via suspension polymerization. React. Funct. Polym., 56, 167-173 (2003).
Pérez-Moral, N., Mayes, A. G., Comparative study of imprinted polymer particles prepared by different polymerization methods. Anal. Chim. Acta, 504, 15-21 (2004).
Yao, W., Fang, Y. J., Li, G. L., Gao, Z. X. Cheng, Y. Y., Adsorption of carbaryl using molecularly imprinted microspheres prepared by precipitation polymerization. Polym. Advan. Tech. 19, 812-816 (2008)