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Naturally occurring amorphous silicic acids of fossil origin, also known as diatomaceous earth or diatomite. Purified for chromatographic applications. Compared to silica, kieselguhr has a small surface of low activity (application in partition chromatography). After impregnation with various substances (paraffin, silicone oil, undecane) it can be used for reversed phase chromatography.
|Method||LC, packing material (adsorbent, bulk)|
|Base material||Kieselguhr (diatomaceous earth, diatomite)|
|Surface chemistry||Kieselguhr (amorphous silica)|
|Mode||Normal phase (NP)|
|Particle type||Fully porous particles (FPP)|
|Recommended application(s)||LC packing material|