Liquid chromatography stationary phases with reduced silanol interactions

摘要: Novel carbamate compounds, novel silylcarbamate compounds and reversed phase materials comprising a silica substrate modified with compound are disclosed which may, for example, be used as stationary phases liquid chromatography applications. Attached to the group several or normal producing groups such cyanoalkyl, tertiary butyl, dibutyl, octyl, dodecyl, tetradecyl, octadecyl benzyl. The new may endcapped short chain alkyl silane. One particular advantage of these is decreased interaction basic samples due shielding unreacted silanol on surface. particularly useful in chromatographic analysis more generally having an undesirable unmodified silanols.