The separation of the coloured derivatives of some organic compounds using liquid chromatography in small-bore columns packed with ion-exchange resins

A possibility of applying liquid chromatography to the separation of coloured homologous N,N-dimethyl- p-aminobenzeneazobenzoyl esters and amides has been studied using apparatus consisting of a pulse-free plunger feeding pump, a narrow bore column, a spectrophotometer with a flow-through measuring...

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Bibliographic Details
Published in:Journal of Chromatography A 1970-01, Vol.53 (1), p.69-75
Main Authors: Churáček, J., Jandera, P.
Format: Article
Language:English
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Summary:A possibility of applying liquid chromatography to the separation of coloured homologous N,N-dimethyl- p-aminobenzeneazobenzoyl esters and amides has been studied using apparatus consisting of a pulse-free plunger feeding pump, a narrow bore column, a spectrophotometer with a flow-through measuring cell of our own design, and a recorder. These compounds can be sorbed on sulphonated styrene-divinyl-benzene cation-exchange resins with a low degree of cross-linking and separated by elution with hydrochloric acid solutions in aqueous-organic solvents. The influence of the eluent composition, the molecular size of the solute and functional groups upon chromatographic behaviour have been studied. Good resolution can also be achieved by adsorption chromatography on silica columns.
ISSN:0021-9673
DOI:10.1016/S0021-9673(00)86705-9