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Octadecyl-bonded silica ODS

The selectivity differences can be understood by the comparison of four octadecyl-bonded silica (ODS) phases synthesized from the same silica gel. The... [Pg.46]

Determination of free 4-hydroxy-2,3-trans-alkenals by HPLC Esterbauer (1982) has developed a procedure for the qualitative detection and quantitative measurement of steady-state concentrations of free hydroxyalkenals (specifically HNE) in tissues, tissue extracts and lipid containing foodstuffs. Their method utilizes UV-detection of the free aldehyde at its 220 nm UV-absorption maximum and peak identification was confirmed by mass spectrometry. An effective purification and concentration step is employed using dichloromethane to extract hydroxyalkenals from samples trapped on Extrelut columns. The samples are subsequently purified by solid-phase extraction on octadecyl-bonded silica (ODS) disposable cartridges and then analysed by HPLC. [Pg.161]

See other pages where Octadecyl-bonded silica ODS is mentioned: [Pg.29]    [Pg.311]   
See also in sourсe #XX -- [ Pg.161 ]



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ODS-silica

Octadecyl

Silica bonding

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