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HPLC analysis of selectfluor
Posted: Tue Dec 15, 2009 4:23 pm
by praveenpaliwal
Hellow ,
Can any body tell me the HPLC analysis of selectfluor. The flurinating reagent
Best regards
praveen
Posted: Tue Dec 15, 2009 9:53 pm
by Vlad Orlovsky
selectfluor is double quaternary amine, you can use Obelisc R trimodal RP column (cation and anion-exchange plus reversed phase) .
Should retain similar to paraquat or both components of ionic liquids:
http://www.sielc.com/compound_403.html
http://www.sielc.com/application_180.html
Posted: Wed Dec 16, 2009 5:28 pm
by praveenpaliwal
But sir it has two BF4- ion's and one side N atom is linked with F atom then how it can a quaternary amine . Which type of ionic column is suitable for this ?
Best regards
praveen
Posted: Wed Dec 16, 2009 8:25 pm
by krickos
But sir it has two BF4- ion's and one side N atom is linked with F atom then how it can a quaternary amine .
praveen
Hi
Well strictly speaking I would say that it is a single rather than a double quaternary amine, as one side has four alkyl sides and the other "only" three but that is a bit beside the point I think, Vlads suggestion might still be a good suggestion.
Posted: Wed Dec 16, 2009 9:18 pm
by Vlad Orlovsky
Sorry, my mistake it is single quat!
My only concern is reactivity of the compound, it is oxidant and fluorination agent. Retaining/separating cation and anion portions is not a problem with Obelisc trimodal columns