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- W2473202489 abstract "Poly (glycidylmethacrylate-divinylbenzene) (Poly (GMA-DVB)) microspheres were prepared by the two-staged swelling and polymerization method, and modified with octadecylamine (ODA) to obtain ODA-poly (GMA-DVB) stationary phase for HPLC. The new material was characterized by scanning electron microscope, nitrogen adsorption-desorption measurement, Fourier transform infrared spectrum, elemental analysis and thermogravimetric analysis. The results showed that poly (GMA-DVB) microspheres had good monodispersity, porosity and ball shapes. The diameters and specific surface area of the microspheres were about 6µm and 396m(2)g(-1), respectively. ODA-poly (GMA-DVB) stationary phase had good thermal stability. Furthermore, the chromatographic performance of the stationary phase was illustrated by separating n-alkylbenzenes, mono-substituted benzenes and N-nitrosamines. Auxiliary quantum chemistry calculation was also carried out to evaluate the interaction mechanism. According to the evaluation, ODA-poly (GMA-DVB) stationary phase exhibited good hydrophobicity and hydrophobic selectivity, strong stereo-selectivity, polar interaction and π-π interaction. The multi-interaction mechanisms could very likely guarantee its excellent chromatographic performance for the analysis of complex samples. Finally, the column was successfully applied in the determination of N-nitrosamines in pickles sample." @default.
- W2473202489 created "2016-07-22" @default.
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- W2473202489 date "2016-11-01" @default.
- W2473202489 modified "2023-10-18" @default.
- W2473202489 title "Octadecylamine-modified poly (glycidylmethacrylate-divinylbenzene) stationary phase for HPLC determination of N- nitrosamines" @default.
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- W2473202489 doi "https://doi.org/10.1016/j.talanta.2016.07.021" @default.
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