Selective solid-phase extraction of dibutyl phthalate from soybean milk using molecular imprinted polymers

He, Juan; Lyu, Ruihe; Zhu, Jing; Lü, Kui

doi:10.1016/j.aca.2009.12.029

Cited by 108 publications

(43 citation statements)

References 17 publications

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“…The MIPs were prepared by bulk polymerization [18] using EtP as a template molecule, MAA as a functional monomer, EDMA as a cross-linking agent, AIBN as an initiator, and acetonitrile as a porogen. The MI-SPME device consisted of an outer tube made of a 5 mL microinjector and an inner core made of a 1 mL microinjector coupled with an MI-SPME fiber [15].…”

Section: Synthesis Of Mips and Preparation Of Mi-spme Devicementioning

confidence: 99%

Preparation and selective recognition of a novel solid‐phase microextraction fiber combined with molecularly imprinted polymers for the extraction of parabens in soy sample

Chen

Jiang³

et al. 2011

J of Separation Science

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A prepared molecularly imprinted polymer with ethyl p-hydroxybenzoate as template molecule was applied for the first time to a homemade solid-phase microextraction fiber. The molecularly imprinted polymer-coated solid-phase microextraction fiber was characterized by scanning electron microscopy and thermogravimetric analysis. Various parameters were investigated, including extraction temperature, extraction time, and desorption time. Under the optimum extraction conditions, the molecularly imprinted polymer-coated solid-phase microextraction fiber exhibited higher selectivity with greater extraction capacity toward parabens compared with the nonimprinted polymer-coated solid-phase microextraction fiber and commercial fibers. The molecularly imprinted polymer-coated solid-phase microextraction fiber was tested using gas chromatography to determine parabens, including methyl p-hydroxybenzoate, ethyl p-hydroxybenzoate, and propyl p-hydroxybenzoate. The linear ranges were 0.01-10 μg/mL with a correlation coefficient above 0.9943. The detection limits (under signal-to-noise ratio of 3) were below 0.30 μg/L. The fiber was successfully applied to the simultaneous analysis of three parabens in spiked soy samples with satisfactory recoveries of 95.48, 97.86, and 92.17%, respectively. The relative standard deviations (n=6) were within 2.83-3.91%. The proposed molecularly imprinted polymer-coated solid-phase microextraction method is suitable for selective extraction and determination of trace parabens in food samples.

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Section: Synthesis Of Mips and Preparation Of Mi-spme Devicementioning

confidence: 99%

Preparation and selective recognition of a novel solid‐phase microextraction fiber combined with molecularly imprinted polymers for the extraction of parabens in soy sample

Chen

Jiang³

et al. 2011

J of Separation Science

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“…Up to now, various pretreatment techniques have been attempted to extract PAEs from different samples, such as liquid-liquid extraction (LLE) [6,7], solid-phase extraction (SPE) [8][9][10][11][12][13], solid-phase microextraction (SPME) [14][15][16][17][18], liquid-phase microextraction (LPME) [19], LPME method based on the solidification of a floating organic microdrop (LPME-SFO) [20], accelerated solvent extraction (ASE) [21], stir-bar sorptive extraction (SBSE) [22], single-drop microextraction (SDME) [23], dispersive liquid-liquid microextraction (DLLME) [24][25][26], hollow fiber-based liquid-phase microextraction (HF-LPME) [27], polymer monolith microextraction (PMME) [28], supercritical fluid extraction [29], and ultrasound-assisted emulsification-microextraction (USAEME) [30]. Among them, SPE and SPME are the mostly used techniques for environmental analysis.…”

Section: Introductionmentioning

confidence: 99%

Extraction of phthalate esters from water and beverages using a graphene-based magnetic nanocomposite prior to their determination by HPLC

Liu

et al. 2011

Microchim Acta

102

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We have developed a highly sensitive microextraction method for the preconcentration of some phthalate esters such as diethyl phthalate, di-n-propylphthalate, di-nbutyl-phthalate, dicyclohexyl-phthalate, and diethyl-hexyl phthalate prior to their determination by HPLC. It is based on a magnetic graphene nanocomposite as an effective adsorbent. The effects of the amount of the extractant composite employed, extraction time, pH values, salt concentration and desorption conditions were investigated. Under the optimum conditions, the enrichment factors range from 1574 to 2880. Response is linear in the concentration range from 0.1 to 50 ng mL −1 . The limits of detection (at S/N03) were between 0.01 and 0.04 ng mL −1 . The method was successfully applied to the determination of five phthalate esters in water and beverage samples.

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“…Several studies describe MAA monomers as having a great effect on binding adsorption (Shi et al, 2007;Beltran et al, 2010;He et al, 2010;Kang et al, 2012). Thus MAA-linked allyl-β-CD MIPs (M-MAA) were selected as models amongst the prepared MIPs to evaluate their binding performance for CLEN in different testing solvents.…”

Section: Influence Of Adsorption Solvent On the Binding Factormentioning

confidence: 99%

“…MISPE cartridges have been employed to separate pesticides (Muldoon and Stanker, 1997;Zhu et al, 2002;Lv et al, 2007), drugs (Mullett and Lai, 1998;Shi et al, 2007), and illicit food additives (He et al, 2010;Kang et al, 2012) from different biological matrices. The main compositions engaged in the creation of MIPs are the template molecule, the functional group, and the cross-linking agent.…”

Section: Introductionmentioning

confidence: 99%

Molecularly imprinted polymers as the extracted sorbents of clenbuterol ahead of liquid chromatographic determination

Lay

et al. 2016

J. Zhejiang Univ. Sci. B

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A pre-treatment methodology for clenbuterol hydrochloride (CLEN) isolation and enrichment in a complex matrix environment was developed through exploiting molecularly imprinted polymers (MIPs). CLEN-imprinted polymers were synthesized by the combined use of ally-β-cyclodextrin (ally-β-CD) and methacrylic acid (MAA), allyl-β-CD and acrylonitrile (AN), and allyl-β-CD and methyl methacrylate (MMA) as the binary functional monomers. MAA-linked allyl-β-CD MIPs (M-MAA) were characterized by Fourier transform-infrared (FT-IR) spectroscopy and a scanning electron microscope (SEM). Based upon the results, M-MAA polymers generally proved to be an excellent selective extraction compared to its references: AN-linked allyl-β-CD MIPs (M-AN) and MMA-linked allyl-β-CD MIPs (M-MMA). M-MAA polymers were eventually chosen to run through a molecularly imprinted solid-phase extraction (MISPE) micro-column to enrich CLEN residues spiked in pig livers. A high recovery was achieved, ranging from 91.03% to 96.76% with relative standard deviation (RSD) ≤4.45%.

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Selective solid-phase extraction of dibutyl phthalate from soybean milk using molecular imprinted polymers

Cited by 108 publications

References 17 publications

Preparation and selective recognition of a novel solid‐phase microextraction fiber combined with molecularly imprinted polymers for the extraction of parabens in soy sample

Preparation and selective recognition of a novel solid‐phase microextraction fiber combined with molecularly imprinted polymers for the extraction of parabens in soy sample

Extraction of phthalate esters from water and beverages using a graphene-based magnetic nanocomposite prior to their determination by HPLC

Molecularly imprinted polymers as the extracted sorbents of clenbuterol ahead of liquid chromatographic determination

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