NDLI: The application of pseudo template molecularly imprinted polymer to the solid-phase extraction of cyromazine and its metabolic melamine from egg and milk.

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The application of pseudo template molecularly imprinted polymer to the solid-phase extraction of cyromazine and its metabolic melamine from egg and milk.

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The application of pseudo template molecularly imprinted polymer to the solid-phase extraction of cyromazine and its metabolic melamine from egg and milk.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Wang, Xianhua Fang, Qiuxue Liu, Shipeng Chen, Lei
Description	Country affiliation: China Author Affiliation: Wang X ( School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China.)
Abstract	The combination of molecularly imprinted polymer with high performance liquid chromatography has been developed to determine cyromazine and its metabolic melamine in some samples. However, the potential risk of template leakage used in molecularly imprinted polymer is a major disadvantage. To solve this problem, 2-(4,6-diamino-1,3,5-triazin-2-ylamino) ethanethiol disulfide, a molecule that shares the similar imprinting sites with cyromazine and melamine, was selected as pseudo template to prepare molecularly imprinted polymer. Methacrylic acid, ethylene glycol dimethyl acrylate and toluene were selected as functional monomer, crosslinker and porogen, respectively. The molecular recognition property and binding capability of cyromazine and melamine were evaluated by adsorption test and Scatchard analysis. The results showed that the molecularly imprinted polymer based on pseudo template had more excellent affinity and selectivity for cyromazine and melamine. The resulting molecularly imprinted polymer was used as a solid-phase extraction material to enrich cyromazine and melamine in egg and milk samples for high performance liquid chromatography analysis. The solid-phase extraction process was carefully optimized. It was found that when different concentration of cyromazine and melamine standards were spiked into samples, satisfactory recovery rate of cyromazine and melamine were obtained as 85.6-98.8% with relative standard deviation <5.5%.
File Format	HTM / HTML
ISSN	16159306
Issue Number	12
Volume Number	35
e-ISSN	16159314
Journal	Journal of Separation Science
Language	English
Publisher	Wiley-VCH
Publisher Date	2012-06-01
Publisher Place	Germany
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Analytical Discipline Chemistry Eggs Analysis Food Contamination Milk Chemistry Polymers Solid Phase Extraction Methods Triazines Isolation & Purification Adsorption Animals Cattle Chickens Chromatography, High Pressure Liquid Molecular Imprinting Chemical Synthesis Instrumentation Metabolism Evaluation Studies Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Filtration and Separation

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