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在硅藻土、玻璃等硅质色谱材料表面都或多或少不均匀地残存着—Si—OH、M——OH(M:Fe、Al、B等)以及由它们的氧化物为代表的Bronsted酸和Lewis酸,表现出
-Si-OH, M-OH (M: Fe, Al, B and the like) and oxides represented by these oxides remain more or less uniformly on the surface of the silica chromatography materials such as diatomaceous earth and glass Bronsted acid and Lewis acid, shown