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Studies from University of Alberta Add New Findings in the Area of Nanoparticles

June 13, 2014

By a News Reporter-Staff News Editor at Science Letter -- Current study results on Nanoparticles have been published. According to news originating from Edmonton, Canada, by NewsRx correspondents, research stated, "Hydrophilic interaction liquid chromatography (HILIC) is a fast growing separation technique for hydrophilic and polar analytes. In this work, we combine the unique selectivity of carbon surfaces with the high efficiency of core-shell silica."

Our news journalists obtained a quote from the research from the University of Alberta, "First, 5 mu m core-shell silica is electrostatically coated with 105 nm cationic latex bearing quaternary ammonium groups. Then 50 nm anionic carbon nanopartides are anchored onto the surface of the latex coated core-shell silica particles to produce a hybrid carbon-silica phase. The hybrid phase shows different selectivity than ten previously classified HILIC column chemistries and 36 stationary phases. The hybrid HILIC phase has shape selectivity for positional isomeric pairs (phthalic/isophthalic and 1-naphthoic/2-naphthoic acids). Fast and high efficiency HILIC separations of biologically important carboxylates, phenols and pharmaceuticals are reported with efficiencies up to 85,000 plates m(-1). Reduced plate height of 1.9 (95,000 plates m(-1)) can be achieved."

According to the news editors, the research concluded: "The hybrid phase is stable for at least 3 months of usage and storage under typical HILIC eluents."

For more information on this research see: Hybrid carbon nanoparticles modified core-shell silica: A high efficiency carbon-based phase for hydrophilic interaction liquid chromatography. Analytica Chimica Acta, 2014;820():187-194. Analytica Chimica Acta can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier -; Analytica Chimica Acta -

The news correspondents report that additional information may be obtained from M.E.A. Ibrahim, University of Alberta, Dept. of Chem, Gunning Lemieux Chem Center, Edmonton, AB T6G 2G2, Canada. Additional authors for this research include M.F. Wahab and C.A. Lucy (see also Nanoparticles).

Keywords for this news article include: Canada, Alberta, Edmonton, Nanotechnology, Emerging Technologies, North and Central America

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Source: Science Letter

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