Figure 6-14. Comparison of the separation of the reversed-phase (RP) test mixture on an in house developed RP/WAX-AQ360 phase with those obtained on commercially available mixed mode phases employing RP-elution mode. Solutes: (1) butylbenzene; (2) pentylbenzene; (3) DETP (O,O-Diethyl thiophosphate); and (4) Boc-Pro Phe.

Reprinted with permission from La¨mmerhofer, M., Richter, M., Wu, J., Nogueira, R., Bicker, W., Lindner, W., 2008. Mixed-mode ion-exchangers and their comparative chromatographic characterization in reversed-phase and hydrophilic interaction chromatography elution modes. J. Sep. Sci. 31, 2572-2588.

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