Study of molecularly imprinted solid-phase extraction of diphenylguanidine and its structural analogs

Fan, Jing; Wei, Yafang; Wang, Jianji; Wu, Chunlai; Shi, Huidong

doi:10.1016/j.aca.2009.02.045

Cited by 54 publications

(31 citation statements)

References 30 publications

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“…Compared with biological receptors, molecularly imprinted materials possess many advantages such as ease of mass production, high stability, and easily adapted for different compounds with specific binding sites. Therefore, molecularly imprinted materials have been extensively used in chromatographic separation (Qin et al, 2009), solid phase extraction (Fan et al, 2009), catalysis (Lettau et al, 2006), binding assays (Stephenson and Shimizu, 2007) and molecular sensing (Fang et al, 2009;Lakshmi et al, 2009;Li et al, 2005;Mazzotta et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Electrochemical fabrication of molecularly imprinted porous silicate film electrode for fast and selective response of methyl parathion

Tan

Liew

et al. 2010

Biosensors and Bioelectronics

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Section: Introductionmentioning

confidence: 99%

Electrochemical fabrication of molecularly imprinted porous silicate film electrode for fast and selective response of methyl parathion

Tan

Liew

et al. 2010

Biosensors and Bioelectronics

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“…1 Structures of chemicals used in this study (1) and a schematic of the preparation of atrazine-imprinted core-shell nanopolymers by RAFT precipitation polymerization (2). …”

Section: Optimization Of Surface-imprinting Synthesis Conditionsmentioning

confidence: 99%

“…[1][2][3] Thanks to the desired selectivity, physical robustness and thermal stability, MIPs have been widely applied as separation sorbents and recognition elements in sensors. To date, bulk polymerization is the commonly used method to prepare MIPs.…”

Section: Introductionmentioning

confidence: 99%

Molecularly imprinted core-shell nanoparticles for determination of trace atrazine by reversible addition–fragmentation chain transfer surface imprinting

2011

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A simple and effective method was proposed to prepare uniform surface-imprinted nanoparticles. This strategy was carried out by introducing vinyl groups to the surface of silica beads by a one-step modification, followed by copolymerization of functional monomers via reversible additionfragmentation chain transfer (RAFT) precipitation polymerization. Owing to the intrinsic advantages of controlled/living polymerization and surface imprinting technology, the resultant RAFT surfaceimprinted nano-sized polymers (RAFT-SINPs) demonstrated spherical shaped particles with excellent monodispersity, and improvements in imprinting efficiency and mass transfer in comparison to molecularly imprinted polymers (MIPs) prepared by traditional precipitation polymerization. Recoveries of 93.4% and 79.8% were achieved by one-step extraction when RAFT-SINPs were used for the preconcentration and selective separation of atrazine in spiked corn and lettuce samples, respectively. These results provided the possibility for the separation and enrichment of atrazine from complicated matrices by RAFT-SINPs.

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“…However, part of template molecule bound specifically by the imprinted polymer remains trapped due to the specific interaction [25]. Hence, it is quite necessary to optimize this process so as to reduce the interferences in complex sample matrix and the nonspecific adsorption of melamine.…”

Section: Optimization Of the Washing And Eluting Solventmentioning

confidence: 99%

Synthesis and application of core‐shell complex‐imprinted polymer for the solid‐phase extraction of melamine from dairy products

Zhang

Luo

et al. 2010

J of Separation Science

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A core-shell complex-imprinted polymer (CIP) was synthesized and evaluated for selective extraction of melamine from dairy products. The CIP synthesis based on surface modification of home-made silicon microspheres was conducted via a metal complex as functional monomer, ethylene glycol dimethylacrylate as cross-link and melamine as template. The resulting CIP was characterized by SEM and Fourier transform infrared spectroscopy. When the amount of silica microspheres was 100 mg and the molar ratio of copper(II) methacrylate to EDGMA was 1:10, well-dispersed particles were obtained. The complex-imprinted SPE condition was optimized and the maximum enrichment factor of melamine can be up to 40. The reliability of complex-imprinted SPE for extraction and enrichment of melamine was investigated and proved by using spiked samples including milk and milk powder with the recoveries ranging from 87 to 92%.

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Study of molecularly imprinted solid-phase extraction of diphenylguanidine and its structural analogs

Cited by 54 publications

References 30 publications

Electrochemical fabrication of molecularly imprinted porous silicate film electrode for fast and selective response of methyl parathion

Electrochemical fabrication of molecularly imprinted porous silicate film electrode for fast and selective response of methyl parathion

Molecularly imprinted core-shell nanoparticles for determination of trace atrazine by reversible addition–fragmentation chain transfer surface imprinting

Synthesis and application of core‐shell complex‐imprinted polymer for the solid‐phase extraction of melamine from dairy products

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