作者: G.R. Bogart , D.E. Leyden , T.M. Wade , W. Schafer , P.W. Carr
DOI: 10.1016/S0021-9673(01)93123-1
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摘要: Abstract Chemically modified silica gels were prepared under various conditions with γ-glycidoxypropyltrimethoxysilane in order to investigate the effect of methods hydrolyzing terminal epoxide group. The silylated substrates then examined by 13 C solid-state NMR cross-polarization and magic angle spinning. results correlated infrared obtained diffuse reflectance Fourier transform spectroscopy. By reaction a primary alkyl amine percentage unopened may be determined Infrared data indicate that as little 10% remaining after attempted hydrolysis can influence chromatographic capacity factors.