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Updated: Jan 1, 2026

Curtain Flow Column: Optimization of Efficiency and Sensitivity
Published on: June 12, 2016
Characterization of triacontyl (C-30) liquid chromatographic columns
Lane C Sander1, Catherine A Rimmer1, Walter B Wilson1
1National Institute of Standards and Technology (NIST), Chemical Sciences Division, 100 Bureau Drive, MS 8392, Gaithersburg, MD 20899-8392, USA.
Abstract:
Differences in the characteristics of seventeen commercial C-30 liquid chromatographic columns were studied for the separation of carotenoid isomers. A mixture consisting of nine xanthophyll and hydrocarbon carotenoids were separated under conditions carefully chosen to reveal changes in selectivity. The influence of the mobile phase composition, column temperature, and mobile phase flow rate were evaluated. Shape selectivity was characterized with Standard Reference Material (SRM) 869b Column Selectivity Test Mixture, for correlation with carotenoid retention behavior. Regular changes were observed across a broad spectrum of shape selectivity characteristics as indicated by SRM 869b. Better separations of carotenoid isomers were achieved with C-30 columns than were possible with C-18 columns, even after optimization of separation conditions.
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