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A new extraction medium was proposed for liquid–liquid extraction of the histamine H 2 receptor antagonists ranitidine (RNT) and nizatidine (NZT). The ionic liquids with low vapor pressure and favorable solvating properties for a range of compounds such as 1-butyl-3-methylimidazolium hexafluorophosphate [C 4 mim][PF 6 ] and 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide...
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