Evaluation and application of a new core-shell chromatographic stationary phase for high performance liquid chromatography

doi:10.3724/SP.J.1123.2016.09006

Abstract

Abstract:

A new core-shell chromatographic stationary phase was characterized by scanning electron microscope, transmission electron microscope and nitrogen adsorption method. The results showed that it had excellent monodispersity, homogeneous structure and narrow pore size distribution. It was modified by C18, and the chromatographic performance was also performed. The number of theoretical plates was over 150000 plates/m, and the chromatographic peaks were symmetrical. The retention factor ratio of toluene and ethylbenzene was 1.45, and the methylene selectivity was excellent. Finally, it was applied to detect aldehydes and ketones in automobile exhaust. The aldehydes and ketones which derivatized by 2,4-dinitrophenylhydrazine (DNPH) were well separated in less than 15 min under the optimized chromatographic conditions. The high separation speed, good selectivity and perfect column efficiency are obtained with the novel core-shell chromatographic stationary.

Key words: carbonyl compounds, core-shell chromatographic stationary phase, evaluation and application, high performance liquid chromatography (HPLC)

CLC Number:

O658

SUN Yuanshe, QU Qishu, YU Shuxin, LI Shuangshuang, TANG Tao, LI Tong. Evaluation and application of a new core-shell chromatographic stationary phase for high performance liquid chromatography[J]. Chinese Journal of Chromatography, 2016, 34(12): 1250-1254.

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