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- W2351528681 abstract "The separation of four ephedrines using 1-alkyl-3methyl-imidazolium tetrafluoroborate ionic liquid as the elute additives in thin layer chromatography was studied.The addition of ionic liquids could greatly improve the peak shape of ephedines(norephedrine,ephedrine,pseudoephedrine and methylephedrine).The retardation factor(R_f) of the analytes increased at first and then do not change with the increase in the concentration of ionic liquids.These effects demonstrated that imidazolium tetrafluoroborate ionic liquid could effectively suppress the deleterious effects of free silanols on silica-based stationary phase.Besides,the selectivity of four analytes were changed with addition of ionic liquid,which indicated there could exist simultaneous two separation mechanism to determine the retentions." @default.
- W2351528681 created "2016-06-24" @default.
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- W2351528681 date "2006-01-01" @default.
- W2351528681 modified "2023-09-25" @default.
- W2351528681 title "The effects of ionic liquids as eluent additives in thin lay chromatography on separation of ephedrines" @default.
- W2351528681 hasPublicationYear "2006" @default.
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