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6. New supports for more selective extraction
6.1 Mixed or dual retention mode support
It has been shown that residual ionized silanols, present in non-negligible quantities, depending on sample pH, on silica phases grafted with alkyl chains, facilitate the extraction of basic compounds. To enhance these electrostatic interactions, silica phases were grafted with both alkyl chains and ionized functions such as strong acids and strong bases ...
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New supports for more selective extraction
Solid phase extraction applications
References
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"Sample processing", http://www.espci.fr/recherche/labos/leca/traitement.htm
Technical data
Tables 1 and 2 give some technical data on the phases currently on the market and the suppliers from whom...
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