caa a22 4500 465746454 CHVBK 20180323111822.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF00321890 doi (NATIONALLICENCE)springer-10.1007/BF00321890 Reversed phase and normal phase liquid chromatography on poly(1-vinyl-2-pyrrolidone) or poly(1-vinylimidazole) bonded silica using γ-methacryloxypropyltrimethoxysilane as coupling agent. Stationary phases 23 [Elektronische Daten] [C. Kou, H. Luoh, C. Huang, T. Den] Summary: A method for preparing selective phases for reversed phase and normal phase liquid chromatography is described. Two different polymeric modified silica gel phases were prepared by simultaneously bonding with γ-methacryloxypropyltrimethoxysilane as coupling agent. Modification of these polymer phases was achieved by treatment with poly(1-vinyl-2-pyrrolidone) or poly(1-vinylimidazole). By eluting a number of standard mixtures containing polyaromatics and haloaromatics, the selectivity of each phase was evaluated. In reversed phase mode, the partition of sample components between mobile phase and stationary phase was found to be similar for polymer phases and γ-methacryloxypropylsilyl phase. In normal phase mode, only the poly(1-vinyl-2-pyrrolidone) phase or the poly(1-vinylimidazole) phase could interact electronically with aromatic nuclei. Springer-Verlag, 1990 Kou C. Department of Chemical Engineering, Lee Ming Institute of Technology, 24314, Taishan, Taiwan, Republic of China aut Luoh H. Department of Applied Chemistry, Chung Cheng Institute of Technology, 33509, Tahsi, Taiwan, Republic of China aut Huang C. Department of Applied Chemistry, Chung Cheng Institute of Technology, 33509, Tahsi, Taiwan, Republic of China aut Den T. Department of Applied Chemistry, Chung Cheng Institute of Technology, 33509, Tahsi, Taiwan, Republic of China aut Fresenius' Journal of Analytical Chemistry Springer-Verlag 336/5(1990-01-01), 409-414 0937-0633 336:5<409 1990 336 216 https://doi.org/10.1007/BF00321890 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00321890 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kou C. Department of Chemical Engineering, Lee Ming Institute of Technology, 24314, Taishan, Taiwan, Republic of China aut NATIONALLICENCE 700 1- Luoh H. Department of Applied Chemistry, Chung Cheng Institute of Technology, 33509, Tahsi, Taiwan, Republic of China aut NATIONALLICENCE 700 1- Huang C. Department of Applied Chemistry, Chung Cheng Institute of Technology, 33509, Tahsi, Taiwan, Republic of China aut NATIONALLICENCE 700 1- Den T. Department of Applied Chemistry, Chung Cheng Institute of Technology, 33509, Tahsi, Taiwan, Republic of China aut NATIONALLICENCE 773 0- Fresenius' Journal of Analytical Chemistry Springer-Verlag 336/5(1990-01-01), 409-414 0937-0633 336:5<409 1990 336 216 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer