TY - JOUR
T1 - Chromatographic characteristics of poly(1-vinylimidazole)-grafted silica in normal-phase HPLC
AU - Sun, Min
AU - Feng, Juanjuan
AU - Liu, Shujuan
AU - Wang, Xusheng
AU - Liu, Xia
AU - Jiang, Shengxiang
PY - 2011/5
Y1 - 2011/5
N2 - A stationary phase based on poly(1-vinylimidazole)-grafted silica has been prepared by the surface radical chain-transfer reaction. The stationary phase was characterized by infrared spectra, X-ray photoelectron spectroscopy and elemental analysis. Chromatographic characteristics of the stationary phase were investigated in normal-phase HPLC. The results showed that both weak polar compounds (polycyclic aromatic hydrocarbons, dialkyl phthalates) and polar compounds (anilines, phenols) could be successfully separated on this stationary phase, implying better separation performance than blank silica and conventional aminopropyl-bonded silica under the same conditions. The excellent performance can be attributed to multiple interactions between surface modifier and the analytes that might include dipole, hydrogen bonding, H-π, electrostatic and inductive interactions.
AB - A stationary phase based on poly(1-vinylimidazole)-grafted silica has been prepared by the surface radical chain-transfer reaction. The stationary phase was characterized by infrared spectra, X-ray photoelectron spectroscopy and elemental analysis. Chromatographic characteristics of the stationary phase were investigated in normal-phase HPLC. The results showed that both weak polar compounds (polycyclic aromatic hydrocarbons, dialkyl phthalates) and polar compounds (anilines, phenols) could be successfully separated on this stationary phase, implying better separation performance than blank silica and conventional aminopropyl-bonded silica under the same conditions. The excellent performance can be attributed to multiple interactions between surface modifier and the analytes that might include dipole, hydrogen bonding, H-π, electrostatic and inductive interactions.
KW - HPLC
KW - Normal-phase
KW - Poly(1-vinylimidazole)
KW - Radical polymerization
KW - Stationary phase
UR - http://www.scopus.com/inward/record.url?scp=79955678075&partnerID=8YFLogxK
U2 - 10.1002/jssc.201000895
DO - 10.1002/jssc.201000895
M3 - 文章
C2 - 21495188
AN - SCOPUS:79955678075
SN - 1615-9306
VL - 34
SP - 1149
EP - 1156
JO - Journal of Separation Science
JF - Journal of Separation Science
IS - 10
ER -