Abstract

Here, we created for the first time that highly stable polymer microspheres copolymerized with capsaicin derivative, divinyl benzene, and N-(Hydroxymethyl)acrylamide could be efficient for reversed-phase high-performance liquid chromatography (RP-HPLC) by using a simple “one-pot cooking” method, which had the potential to be produced in large quantities. Then, the spheres were post-functionalized with two different monomers, N-vinyl formamide and 4-acrylomorpholine by double coating, which had ideal mechanical strength and efficiency as stationary phase. In order to reach best separation condition, the effects of buffer concentration, pH, column temperature, and mobile phase polarity on the retention rate were studied. Specifically, the interaction mechanism showed that the stationary phase had hydrophobic and electrostatic interaction with the water-soluble vitamins. It is of significant interest that all columns had excellent precision and accuracy (RSD < 4 %). Taken together, this study played a specific role in promoting the development of a new reverse-phase mode for separating hydrophilic compounds.

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