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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Liquid chromatographic separation of hexopyranosylated cytosine nucleosides from their degradation products.

Development of a liquid chromatographic method which can separate each of a series of hexopyranosylated cytosine nucleosides from their degradation products formed at acid, neutral and basic pH is described. Both silica-based reverse-phase and polymer columns were examined. Influence of the mobile phase pH, ion-pairing agent, concentration of the buffer and type and concentration of organic modifier were systematically investigated. The concentration of the ion-pairing agent and the buffer were found to have a major effect on selectivity. Samples were finally analyzed on a poly(styrene-divinylbenzene), PLRP-S 100 A (8 microns) 250 x 4.6 mm I.D. column at 60 degrees C and with a mobile phase consisting of acetonitrile-sodium octanesulphonate (pH 2.5; 0.02 M)-potassium phosphate buffer (pH 2.5; 0.2 M)-water (X:25:50:25-X, v/v, where X is variable).[1]

References

  1. Liquid chromatographic separation of hexopyranosylated cytosine nucleosides from their degradation products. Thoithi, G., Van Schepdael, A., Herdewijn, P., Roets, E., Hoogmartens, J. Journal of pharmaceutical and biomedical analysis. (1997) [Pubmed]
 
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