A review on development of solid phase microextraction fibers by sol–gel methods and their applications

Kumar, Ashwini; Gaurav, -; Malik, Ashok Kumar; Tewary, Dhananjay Kumar; Singh, Baldev

doi:10.1016/j.aca.2008.01.028

Cited by 286 publications

(112 citation statements)

References 74 publications

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“…82 To sorbent materials in SPME belong such coatings as polydimethylsiloxane (PDMS), polyacrylate (PA) or carbowax (CW). 83 These commercial coatings, however, are relatively expensive and difficult to be prepared in a routine laboratory due to their poor extraction reproducibility. 84 In the search for novel, low cost coating materials for SPME, enabling a better sensitivity and selectivity of this procedure, the calixarene 17-coated SPME fibre has been prepared on the surface of the quartz fibre by the sol-gel method.…”

Section: Calixarene-coated Solid-phase Microextraction Fibresmentioning

confidence: 99%

Selected applications of calixarene derivatives

Deska¹,

Dondela²,

Śliwa³

et al. 2015

Arkivoc

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Section: Calixarene-coated Solid-phase Microextraction Fibresmentioning

confidence: 99%

Selected applications of calixarene derivatives

Deska¹,

Dondela²,

Śliwa³

et al. 2015

Arkivoc

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“…In the past years, various SPME coating approaches such as electrochemical procedures [8,9], immobilized resin [10,11], sol-gel technology [12,13] and molecular imprinted technology [6,14] have been developed. For new coating materials, high-porosity materials have attracted much attention recently because of their large specific surface areas and high extraction capacities resulting in significant improvement in sensitivity, such as carbon nanotubes [15], graphene [16,17] and metal-organic framework [7].…”

Section: Introductionmentioning

confidence: 99%

Preparation and evaluation of mesoporous cellular foams coating of solid-phase microextraction fibers by determination of tetrabromobisphenol A, tetrabromobisphenol S and related compounds

Wang

Liu

et al. 2012

Analytica Chimica Acta

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h i g h l i g h t sTwo novel mesoporous cellular foams were synthesized and used as SPME coating. Four SPME fibers were prepared by sol-gel technology and immobilized resin method. New coating had excellent extraction ability to seven brominated flame retardants. g r a p h i c a l a b s t r a c t a r t i c l e i n f o a b s t r a c tTwo kinds of mesoporous cellular foams (MCFs), including mesoporous silica materials (MCF-1) and phenyl modified mesoporous materials (Ph-MCF-1), were synthesized and for the first time used as fibercoating materials for solid-phase microextraction (SPME). By using stainless steel wire as the supporting core, four types of fibers were prepared by sol-gel method and immobilized by epoxy-resin method. To evaluate the performance of the home-made fibers for SPME, seven brominated flame retardants (BFRs), including tetrabromobisphenol A (TBBPA), tetrabromobisphenol S (TBBPS) and related compounds were selected as analytes. The main parameters that affect the extraction and desorption efficiencies, such as extraction temperature, extraction time, desorption time, stirring rate and ionic strength of samples were investigated and optimized. The optimized SPME coupled with high performance liquid chromatography (HPLC) was successfully applied to the determination of the seven BFRs in water samples. The linearity range was from 5.0 to 1000 g L −1 for each compound except TBBPS (from 1.0 to 1000 g L −1 ), with the correlation coefficients (r 2 ) ranging from 0.9993 to 0.9999. The limits of detection of the method were 0.4-0.9 g L −1 . The relative standard deviations varied from 1.2 to 5.1% (n = 5). The repeatability of fiber-to-fiber and batch-to-batch was 2.5-6.5% and 3.2-6.7%. The recoveries of the BFRs from aqueous samples were in the range between 86.5 and 103.6%. Compared with three commercial fibers (100 m PDMS, 85 m PA and 65 m PDMS/DVB), the MCFs-coated fiber showed about 3.5-fold higher extraction efficiency.

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“…[4] Hybrid materials to be utilized in environmental pollution control are developed to possess improved qualities. One of these developments is the synthesis of a material, containing two highly reactive components, which exhibit sorption and photocatalytic activities.…”

Section: Introductionmentioning

confidence: 99%

Structure and properties of innovative silica hybrid materials synthesized for environmental applications

Todorova

Chernev

Okolie

et al. 2015

Biotechnology & Biotechnological Equipment

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Today, environmental protection is one of the main goals in the strive to preserve the human existence. Development in this area requires invention of new materials, which can reduce the levels of pollution. Hybrid materials are suitable for this purpose, because they combine different desirable properties existing in separate sources into one unique and accessible structure. Most of the commonly used materials for the degradation of different kind of pollutants are based on titanium dioxide, because of its photocatalytic activity under UV irradiation. Innovative silica hybrid materials, containing an organic component (chitosan) and titanium nanoparticles, were successfully synthesized via the solÀgel method and tetraethyl orthosilicate was used as a silica source and network former. Interaction between the chitosan and titanium units, and their influence on the structure of final material, were observed and discussed. A homogeneous structure with an even distribution of titanium and chitosan particles was visible from scanning electron microscopy (SEM) micrographs and the particle size varied between 50 and 150 nm. The formed silica network, characteristic peaks of chitosan and titanium groups and possible interactions between them are observed from Fourier transform infrared (FTIR) spectroscopy spectra and nuclear magnetic resonance (NMR) spectroscopy results. The behaviour of the synthesized silica hybrids after thermal treatment was investigated via differential thermal/thermo-gravimetric analysis (DTA/TG) analysis and the sorption and degradation activities of the obtained hybrid materials were investigated using a solution of methyl orange as model pollutant. The structure and properties of the synthesized silica hybrid materials assert their potential application in environmental remediation due to their photocatalytic degradation and sorption activities against pollutants.

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A review on development of solid phase microextraction fibers by sol–gel methods and their applications

Cited by 286 publications

References 74 publications

Selected applications of calixarene derivatives

Selected applications of calixarene derivatives

Preparation and evaluation of mesoporous cellular foams coating of solid-phase microextraction fibers by determination of tetrabromobisphenol A, tetrabromobisphenol S and related compounds

Structure and properties of innovative silica hybrid materials synthesized for environmental applications

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