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Fast separation of pyrimidine derivatives by capillary electrochromatography on ion-exchange/reversed-phase mixed-mode stationary phases

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Klampfl, CW and Buchberger, W and Haddad, PR (2001) Fast separation of pyrimidine derivatives by capillary electrochromatography on ion-exchange/reversed-phase mixed-mode stationary phases. Journal of Chromatography A, 911 (2). pp. 277-283. ISSN 0021-9673

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Abstract

This work describes the use of mixed–mode stationary phases which exhibit both strong ion-exchange (either cation-exchange, SCX, or anion-exchange, SAX) and reversed-phase chromatographic characteristics in capillary electrochromatographic separations of pyrimidine derivatives. Different packing materials, namely C6, SCX/C6 and SAX/C6, were compared and the influence of the composition of the carrier electrolyte (concentration of acetonitrile and pH) on the retention behavior of the selected solutes was investigated. A separation of all eight pyrimidine derivatives could be obtained on a 6.5 cm column packed with the SAX/C6 stationary phase in less than 3 min, with good peak shapes and efficiencies in the range 39 000 to 81 000 plates per meter.

Item Type: Article
Keywords: Pyrimidines; Electrochromatography; Stationary phases, electrochromatography; Mixed-mode chromatography
Journal or Publication Title: Journal of Chromatography A
Page Range: pp. 277-283
ISSN: 0021-9673
Identification Number - DOI: 10.1016/S0021-9673(01)00515-5
Additional Information:

The definitive version is available at http://www.sciencedirect.com

Date Deposited: 31 Oct 2008 05:33
Last Modified: 18 Nov 2014 03:52
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