Preparation and evaluation of molecularly imprinted solid-phase micro-extraction fibers for selective extraction of phthalates in an aqueous sample

He, Juan; Lyu, Ruihe; Zhan, Hui; Wang, Huizhi; Cheng, Jie; Lü, Kui; Wang, Fengcheng

doi:10.1016/j.aca.2010.06.018

Cited by 63 publications

(29 citation statements)

References 18 publications

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“…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%

“…Molecularly imprinting technology is a molecular recognition technology and molecularly imprinted polymers (MIPs), with high selectivity, have shown potential applications as SPE sorbent [12][13][14] and SPME fiber coating to recognize the template and other closely related compounds [15]. The use of MIP-coated SPME (MI-SPME) [16,17], instead of other pretreatment methods, is expected to reduce assay time, as well as the cost of solvents and disposal and increase the selectivity of the determinations for complex matrices.…”

Section: Introductionmentioning

confidence: 99%

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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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“…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%

Section: Introductionmentioning

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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“…MIP coated fiber is the most commonly used mode of MISPME and has been developed rapidly in many fields. MIPs were synthesized on the surface of SPME fibers which commonly include glass capillary, 448 silica fiber 449 and stainless steel fiber (SSF). 450 For instance, Buszewski's group prepared two novel MIP coated SPME fibers by the improved electrochemical polymerization method using SSF as mold and applied them to the determination of antibiotic drugs in biological samples (synthetic body fluids, human plasma and human whole blood samples).…”

Section: 425mentioning

confidence: 99%

Molecular imprinting: perspectives and applications

et al. 2016

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a Molecular imprinting technology (MIT), often described as a method of making a molecular lock to match a molecular key, is a technique for the creation of molecularly imprinted polymers (MIPs) with tailor-made binding sites complementary to the template molecules in shape, size and functional groups. Owing to their unique features of structure predictability, recognition specificity and application universality, MIPs have found a wide range of applications in various fields. Herein, we propose to comprehensively review the recent advances in molecular imprinting including versatile perspectives and applications, concerning novel preparation technologies and strategies of MIT, and highlight the applications of MIPs. The fundamentals of MIPs involving essential elements, preparation procedures and characterization methods are briefly outlined.Smart MIT for MIPs is especially highlighted including ingenious MIT (surface imprinting, nanoimprinting, etc.), special strategies of MIT (dummy imprinting, segment imprinting, etc.) and stimuli-responsive MIT (single/dual/ multi-responsive technology). By virtue of smart MIT, new formatted MIPs gain popularity for versatile applications, including sample pretreatment/chromatographic separation (solid phase extraction, monolithic column chromatography, etc.) and chemical/biological sensing (electrochemical sensing, fluorescence sensing, etc.). Finally, we propose the remaining challenges and future perspectives to accelerate the development of MIT, and to utilize it for further developing versatile MIPs with a wide range of applications (650 references).

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“…That is, MIP is prepared on the surface of solid substrates; this approach can not only [18,19]. The advances in this field have found application comprehensively such as optical sensor [20], SPE [21], solidphase micro-extraction [22], chromatographic separation [23] and so on. Xu et al [24] first synthesized MIP on the surface of TiO 2 and applied it to adsorption of DBT in the model system.…”

Section: Introductionmentioning

confidence: 99%

Preparation of molecularly imprinted polymer by surface imprinting technique and its performance for adsorption of dibenzothiophene

Zhou

Bian

et al. 2011

J of Separation Science

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The novel surface imprinted polymer composites (MIP/K(2)Ti(4)O(9)) were prepared using dibenzothiophene (DBT) as the template, 4-vinylpyridine as the functional monomer and potassium tetratitanate whisker (K(2)Ti(4)O(9)) as the carrier. The synthetic product was characterized by Fourier transform infrared spectroscopy and scanning electron microscopy. Parameters influencing DBT adsorption such as contact time, temperature and DBT initial concentration were investigated. The adsorption kinetics were evaluated with the pseudo-first-order and pseudo-second-order models, and the adsorption isotherms were fitted by Langmuir and Freundlich models. Selectivity experiments showed that MIP/K(2)Ti(4)O(9) exhibited excellent recognition capacity and binding affinity to DBT compared with the comparative substrates. MIP/K(2)Ti(4)O(9) could also be easily regenerated and reused ten times with only about 20% loss of adsorption capacity.

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Preparation and evaluation of molecularly imprinted solid-phase micro-extraction fibers for selective extraction of phthalates in an aqueous sample

Cited by 63 publications

References 18 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

Molecular imprinting: perspectives and applications

Preparation of molecularly imprinted polymer by surface imprinting technique and its performance for adsorption of dibenzothiophene

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