Article ID Journal Published Year Pages File Type
1199175 Journal of Chromatography A 2014 7 Pages PDF
Abstract

•Several offline and online 2D RPLC methods to separate a multicomponent mixture were developed.•A standard mixture of 12 warfarins and monohydroxylated isomers were resolved in 16.2 min.•Online two-dimensional LC method by chiral RP-HPLC × achiral RP-UHPLC provided the fastest separation of all isomers.

Several offline and online 2D HPLC methods were investigated for the reversed phase resolution of a complex mixture of closely related warfarin and hydroxywarfarin isomers. By combining reversed phase achiral/chiral HPLC separation with UV-triggered fraction collection and subsequent chiral/achiral reversed phase HPLC analysis of collected fractions, complete resolution of all 12 components of the mixture was possible. In addition, a faster method was developed from online 2D HPLC analysis where multicomponent fractions from the first dimension are simultaneously chromatographed in the second dimension.

Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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