H. Kutsuna et al., SYNTHESIS AND CHARACTERIZATION OF HIGHLY STABLE POLYMER-COATED AMINOSILICA PACKING MATERIAL FOR HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY, Journal of chromatography, 635(2), 1993, pp. 187-193
A synthetic procedure leading to an amino-bonded stationary phase for
high-performance liquid chromatography was developed. The silica surfa
ce was first coated with a silicone polymer monolayer and an amino fun
ctionality was subsequently attached to the polymer layer. The polymer
-coated amino-bonded phase showed improved stability and separation in
the analysis of carbohydrates and nucleotides over conventional amino
propylsilylated silicas.