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In two-dimensional HPLC (2D-HPLC) “heart-cut” applications, two columns are connected in series via a switching valve and volume fractions from the “primary” column are re-injected on the “secondary” column. The heart-cut 2D-HPLC system here described was implemented by connecting a reversed-phase (RP) column (first dimension) to a chiral column (second dimension) containing a quinidine-based chiral...
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