Granular, vitreous, porous form of silicon dioxide.
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The purification procedure entailed ethyl acetate extract, silica gel column, and thin layer chromatography.
2
The extracts were then further purified with SPE silica gel tubes deactivated with trimethylamine.
3
The dimer fraction was separated by size-exclusion chromatography (SEC) after pre-fractionation on silica gel.
4
After removing the template by calcination, porous dehydrated silica gel nanoshells of uniform size were obtained.
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Both extracts were subjected to silica gel column chromatography for isolation of main constituents, followed by purification in sephadex.
1
The sintering behavior of HA can be improved by adding amorphous silica with a low coefficient of thermal expansion.
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Catalan