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Showing 1 to 6 of 6 for “"Polystyrene divinylbenzene"”.
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THE FABRICATION AND STUDY OF METAL CHELATING STATIONARY PHASES FOR THE HIGH PERFORMANCE SEPARATION OF METAL IONS
… elution, is described. Hydrophobic, neutral polystyrene divinylbenzene resins were either impregnated with chelating dyes or dynamically modified with heterocyclic organic acids, using physical adsorption and chemisorption processes respectively. A hydrophilic silica substrate was covalently …
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The characterization of humic substances in seawater
… procedure of adsorption on a crosslinked polystyrene-divinylbenzene resin. The chemical and physical characteristics of both humic acid and fulvic acid fractions were studied. The elemental composition, the acidimetric titration characteristics, the l3C: l2C ratios, and the …
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Chemically modified polymeric resins for high performance liquid chromatography, solid-phase extraction and organic separation by LC and GC
<p>Polystyrene divinylbenzene (PS/DVB) was chemically modified by the introduction of several hydrophilic functional groups, -COCH[subscript]3, -CH[subscript]2OH, -CH[subscript]2CN, -COCH[subscript]2CH[subscript]2COOH, and one hydrophobic group, -C(CH[subscript]3)[subscript]3. Those functional …
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Multidimensional liquid chromatographic separations for proteomics
… 2D liquid chromatography using derivitized polystyrene-divinylbenzene (PS-DVB) pellicular ion-exchange resins and PS-DVB monolithic reversed-phase columns is described. Proteolytic digestion of the fractions followed by rapid liquid chromatography - tandem mass spectrometry was used to …
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In vitro evaluation of the enzyme inhibition and membrane permeation properties of benzophenones extracted from honeybush
… of low-density polymers (i.e. polypropylene and polystyrene divinylbenzene), which were prepared by means of extrusion spheronisation. The tablets were evaluated in terms of buoyancy, disintegration, friability, hardness and dissolution. Samples obtained from the transport and dissolution …
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Characterisation of Algal Derived Organic Nitrogen
… on a Hamilton PRP-1 column containing a polystyrene divinylbenzene stationary phase (PSDVB). During the extraction process the increased hydrophobicity of the PS-DVB phase was predicted to yield increased recoveries of peptides, when compared to analogous d g phase cartridges. The method …