Acrylic-based high internal phase emulsion polymeric monolith for capillary electrochromatography

Tunc, Yeliz; Gölgelioğlu, Çiğdem; Hasırcı, Nesrin; Ulubayram, Kezban; Tuncel, Alï

doi:10.1016/j.chroma.2010.01.020

Cited by 47 publications

(55 citation statements)

References 24 publications

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“…The polyHIPEs within capillary housing therefore have shown In addition to the superior adsorption effects observed, the retention time repeatability of both GONP columns was excellent, (%RSD 0.3%-1.2%), as shown in Table 2. These %RSD values were comparable to a similar separation observed in the literature using capillary electrochromatography (CEC) [47,48]. Additionally, resolution (R s ) between all analytes was greater than 1, meaning that all peaks could be differentiated easily.…”

Section: Application Of Graphene Oxide-modified Polyhipe Materials Insupporting

confidence: 72%

“…PS-co-DVB polyHIPEs were prepared based on a modified procedure described by Tunç et al [47]. Briefly, for a 90% polyHIPE the emulsion consisted of two separately prepared phases: the aqueous phase (15 mL H 2 O, 0.03 g potassium persulfate (PPS), 0.01 g calcium chloride dihydrate), and the organic phase (1.33 mL styrene, 0.33 mL divinylbenzene, 0.33 g Span ® 80).…”

Section: Fabrication Of Graphene Oxide-modified Polyhipe Capillary Comentioning

confidence: 99%

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Graphene Oxide Nanoparticles and Their Influence on Chromatographic Separation Using Polymeric High Internal Phase Emulsions

Choudhury

Duffy

Connolly³

et al. 2017

Separations

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This work presents the first instance of reversed-phase liquid chromatographic separation of small molecules using graphene oxide nanoparticle-modified polystyrene-divinylbenzene polymeric high internal phase emulsion (GONP PS-co-DVB polyHIPE) materials housed within a 200-µm internal diameter (i.d.) fused silica capillary. The graphene oxide nanoparticle (GONP)-modified materials were produced as a potential strategy to increase both the surface area limitations and the reproducibility issues observed in monolithic stationary phase materials. GONP PS-co-DVB polyHIPEs were found to have a surface area up to 40% lower than unmodified polymeric high internal phase emulsion (polyHIPE) stationary phases. However, despite having a surface area significantly lower than that of the unmodified material, the GONP-modified polyHIPEs demonstrated superior analyte adsorption properties. Reducing the GONP material did not have any significant impact on elution order or retention factor of the analytes, which was most likely due to low GONP loading attributed to the 250-nm GONPs utilised. The lower surface area of GONP-modified polyHIPEs provided similar separation efficiency and increased repeatability from injection to injection resulting in % relative standard deviations (%RSDs) of less than 0.6%, indicating the potential offered by graphene oxide (GO)-modified polyHIPES in flow through applications such as adsorption or separation processes.

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Section: Application Of Graphene Oxide-modified Polyhipe Materials Insupporting

confidence: 72%

Section: Fabrication Of Graphene Oxide-modified Polyhipe Capillary Comentioning

confidence: 99%

Graphene Oxide Nanoparticles and Their Influence on Chromatographic Separation Using Polymeric High Internal Phase Emulsions

Choudhury

Duffy

Connolly³

et al. 2017

Separations

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“…HIPEs as templates have been used to prepare porous polymer monoliths, and the resulting monolithic column had high porosity, good mechanical stability, and good separation of proteins [20] and alkylbenzenes [21] in a very short time, similar to the separation obtained by use of commercial monoliths. As far as we are aware, however, there are no reports on polyHIPE monolith for the extraction and enrichment of trace analytes from complex plant samples.…”

Section: Introductionmentioning

confidence: 96%

High-internal-phase-emulsion polymeric monolith coupled with liquid chromatography–electrospray tandem mass spectrometry for enrichment and sensitive detection of trace cytokinins in plant samples

Sun

Zhen

et al. 2015

Anal Bioanal Chem

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High-internal-phase-emulsion polymers (polyHIPEs) show great promise as solid-phase-extraction (SPE) materials because of the tremendous porosity and highly interconnected framework afforded by the high-internal-phase-emulsion (HIPE) technique. In this work, polyHIPE monolithic columns as novel SPE materials were prepared and applied to trace enrichment of cytokinins (CKs) from complex plant samples. The polyHIPE monoliths were synthesized via the in-situ polymerization of the continuous phase of a HIPE containing styrene (STY) and divinylbenzene (DVB) in a stainless column, and revealed highly efficient and selective enrichment ability for aromatic compounds. Under the optimized experimental conditions, a method using a monolithic polyHIPE column combined with liquid chromatography-electrospray tandem mass spectrometry (LC-MS-MS) was developed for the simultaneous extraction and sensitive determination of trans-zeatin (tZ), meta-topolin (mT), kinetin (K), and kinetin riboside (KR). The proposed method had good linearity, with correlation coefficients (R (2)) from 0.9957 to 0.9984, and low detection limits (LODs, S/N = 3) in the range 2.4-47 pg mL(-1) for the four CKs. The method was successfully applied to the determination of CKs in real plant samples, and obtained good recoveries ranging from 68.8 % to 103.0 % and relative standard deviations (RSDs) lower than 16 %.

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“…So far, in order to increase the mechanical strength of polyHIPEs several methods such as changing the polymerisable monomomer(s) and cross-linker comonomer, introducing a suitable reinforcement into the continuous phase or increasing the foam density have been used by scientists. However, increasing the foam density is not preferred since most of the applications of these materials required low density [39]. Within this context, Wu et al [43] reported the preparation of nanoparticle reinforced polyHIPEs with reduced brittleness and chalkiness by using a stress-reducing cross-linker.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, a polyHIPE membrane produced by ROMP of DCPD and norbornene has been utilised as a separator in Li-ion batteries [31] and in another study macroporous polyolefin membranes were prepared by using the same approach [32]. PolyHIPEs have been explored for a wide range of applications [31][32][33][34][35][36][37][38][39]. However, the poor mechanical strength originated from the highly porous and interconnected morphology is the major deficiency restricting the commercial applications.…”

Section: Introductionmentioning

confidence: 99%

Tailoring the mechanical and thermal properties of dicyclopentadiene polyHIPEs with the use of a comonomer

Mert

Slugovc²,

Krajnc³

2015

Express Polym. Lett.

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Abstract. The effect of adding a comonomer to dicyclopentadiene in high internal phase emulsions (HIPEs) on the properties of ring-opening metathesis polymerisation (ROMP) derived polyHIPEs has been investigated. With this aim, dicylopentadiene was copolymerised with norbornene in surfactant stabilized high internal phase emulsions. Morphological, mechanical and thermal properties of the resulting materials were investigated with regard to the monomer ratio. The interconnected pore structure was observed for the resulting poly(dicylopentadiene-co-norbornene) polyHIPEs. Furthermore, the new polyHIPE copolymers were found to have an improved thermal stability compared to the poly(dicylopentadiene) homopolymer.

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Acrylic-based high internal phase emulsion polymeric monolith for capillary electrochromatography

Cited by 47 publications

References 24 publications

Graphene Oxide Nanoparticles and Their Influence on Chromatographic Separation Using Polymeric High Internal Phase Emulsions

Graphene Oxide Nanoparticles and Their Influence on Chromatographic Separation Using Polymeric High Internal Phase Emulsions

High-internal-phase-emulsion polymeric monolith coupled with liquid chromatography–electrospray tandem mass spectrometry for enrichment and sensitive detection of trace cytokinins in plant samples

Tailoring the mechanical and thermal properties of dicyclopentadiene polyHIPEs with the use of a comonomer

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