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Abstract: Abstract: This work is a first effort to prepare a low-density imprinted monolithic column for LC. The new molecularly imprinted polymer monolith was prepared with 30% (w/w) monomers in the pre-polymerization mixture while general high-density monoliths are prepared with 40% monomers. The resulting low-density (S)-naproxen-imprinted monolith produced better chiral resolution of rac-naproxen (R s = 1.55) and column efficiencies of imprinted molecules up to 2,860 plates m?1. Morphological characteristics of low density imprinted monolith was further studied by mercury intrusion porosimetry, scanning electron microscopy (SEM) and nitrogen sorption method. The experiments demonstrated that the strategy of low-density column may be one of a potential approach to the improvement of column efficiency of an imprinted stationary phase
Template and target information: (S)-naproxen
Author keywords: column liquid chromatography, Molecularly imprinted polymers, chiral separation, Low-density monolithic column, (S)-naproxen