Contribution de la chromatographie en phase liquide à haute performance à la séparation des lanthanides trivalents sur résine cationique en présence d'edta

Schoebrechts, F.; Merciny, E.; Duyckaerts, G.

doi:10.1016/s0021-9673(00)86008-2

Cited by 9 publications

(3 citation statements)

References 7 publications

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“…Sulfonated PS-DVB polymers have been used for many years in cationic exchange chromatography, as well as other analytes [51][52][53]. Recently, Chambers and Fritz have reported on the simple preparation of sulfonated PS-DVB with the -SO 3 H loading range of 0.27∼2.63 mmol/g using sulfonic acid and acetic acid [50].…”

Section: Resultsmentioning

confidence: 99%

Facile Method for Preparation of Silica Coated Monodisperse Superparamagnetic Microspheres

Pham

Kyeong

Jang

et al. 2016

Journal of Nanomaterials

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This paper presents a facile method for preparation of silica coated monodisperse superparamagnetic microsphere. Herein, monodisperse porous polystyrene-divinylbenzene microbeads were prepared by seeded emulsion polymerization and subsequently sulfonated with acetic acid/H2SO4. The as-prepared sulfonated macroporous beads were magnetized in presence of Fe2+/Fe3+under alkaline condition and were subjected to silica coating by sol-gel process, providing water compatibility, easily modifiable surface form, and chemical stability. FE-SEM, TEM, FT-IR, and TGA were employed to characterize the silica coated monodisperse magnetic beads (~7.5 μm). The proposed monodisperse magnetic beads can be used as mobile solid phase particles candidate for protein and DNA separation.

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Section: Resultsmentioning

confidence: 99%

Facile Method for Preparation of Silica Coated Monodisperse Superparamagnetic Microspheres

Pham

Kyeong

Jang

et al. 2016

Journal of Nanomaterials

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“…Sulfonated PS-DVB microspheres provided with easy preparation and stable characteristics have been extensively applied. 29 The application has mainly focused on two aspects, namely separating cations or other analytes via packing chromatography columns [29][30][31][32] and soening hard water by desalination. 33,34 The separation columns prefer sulfonated PS-DVB microspheres with small particle sizes (<10 mm) 26 and thus need high pressure to drive liquid phase to ow by.…”

Section: Insights Into Extraction Sorbentmentioning

confidence: 99%

An SPE-assisted BODIPY fluorometric paper sensor for the highly selective and sensitive determination of Cd2+ in complex sample: rice

Niu

Yang

et al. 2014

Analyst

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By using sensing technology, the individual component analysis at trace level in complex samples remains problematic simply because of various interfering species. For example, the determination of Cd(2+) in rice is difficult due to the co-existing interfering metal cations at thousands or even millions of times higher concentrations. In this study, a heavy-metal ion sensitive BODIPY (4,4-difluoro-4-bora-3a,4a-diaza-s-indacene)-based fluorometric paper sensor with assistance of solid phase extraction (SPE) was developed for the highly selective and sensitive determination of trace Cd(2+) in rice. SPE column packed with prepared sulfonated PS-DVB microspheres was employed to enrich trace Cd(2+) and meanwhile remove most interfering heavy-metal ions in simulated complex rice sample with oxalic acid as eluent, which was theoretically selected on the basis of f values. Mn(2+), as a major coexistent heavy-metal ion, could not be easily removed by SPE, but showed little fluorescent response for BODIPY fluorometric paper sensor even in excess amounts. Combining the separation and enrichment capability of SPE column with the selectivity of BODIPY-based fluorometric paper sensor, we were able to detect trace Cd(2+) in complex samples. The response of fluorometric paper sensor was linearly related with Cd(2+) concentrations in the range of 0.5-4 μM, with a detection limit of 0.5 μM. Twelve real rice samples spiked with Cd(2+) were analysed using this method and the results are in good agreement with ICP-MS measurements.

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“…Advantage is being taken of conventional gel-type resins in small, uniform particles for the chromatography of inorganic ions (123,161,421) as well as for organic compounds; here, the advantages of low crosslinking (287,517) and the effect of inorganic counterions on the retention of uncharged organic solutes (517) are noted. Macroporous and surfacesulfonated resins are being used (421); their preparation and properties are described (162,460). "Ion chromatography", which uses resins whose ion-exchange function resides in a thin surface film, is very popular (A7, B10,118,161,186, 271, 292, 320).…”

mentioning

confidence: 99%

Ion exchange and liquid column chromatography

Walton¹

1980

Anal. Chem.

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Contribution de la chromatographie en phase liquide à haute performance à la séparation des lanthanides trivalents sur résine cationique en présence d'edta

Cited by 9 publications

References 7 publications

Facile Method for Preparation of Silica Coated Monodisperse Superparamagnetic Microspheres

Facile Method for Preparation of Silica Coated Monodisperse Superparamagnetic Microspheres

An SPE-assisted BODIPY fluorometric paper sensor for the highly selective and sensitive determination of Cd2+ in complex sample: rice

Ion exchange and liquid column chromatography

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