Separation of glutaraldehyde and some of its aldol condensation products by hydroxyl-aldehyde group affinity chromatography

Tipo de material: Texto

TextoSeries ; Journal of BioChemical and Biophysical Methods, 22(4), p.321-329, 1991Trabajos contenidos:

Holmquist, L
Lewin, M

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Resumen: Glutaraldeh)dc exists in aqueous solution in equilibrium with monomers and polymers of cyclic and open-chain hemialdals and hydrates. At alkaline pH oligomeric and polymeric a,fl-unsaturated aldehyde derivatives are formed from primarily produced aldol condensation products. This communication reports a method for separation of such aldol condensates by means of a new high performance liquid chromatography technique based on the affinity of aldehyde groups for hydroxyl groups of a hydroxylated polyether matrix (Bio-Gel SEC-10). Five peaks corresponding to different aldol condensates of glutaraldehyde were obtained from the affinity column. They have been distinguished by ~tt-NMR and UV spectroscopy. Kinetic measurements yielded formation rates for the different aldol condensates.

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Glutaraldeh)dc exists in aqueous solution in equilibrium with monomers and polymers of cyclic and open-chain hemialdals and hydrates. At alkaline pH oligomeric and polymeric a,fl-unsaturated aldehyde derivatives are formed from primarily produced aldol condensation products. This communication reports a method for separation of such aldol condensates by means of a new high performance liquid chromatography technique based on the affinity of aldehyde groups for hydroxyl groups of a hydroxylated polyether matrix (Bio-Gel SEC-10). Five peaks corresponding to different aldol condensates of glutaraldehyde were obtained from the affinity column. They have been distinguished by ~tt-NMR and UV spectroscopy. Kinetic measurements yielded formation rates for the different aldol condensates.

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