%0 Journal Article
%T QualityControlof1-Alkyl-3-methylimidazoliumIonicLiquidPrecursorswithHPLC
%A 张延强
%A 张建敏
%A 陈玉焕
%A 张锁江
%J 过程工程学报
%D 2007
%X Ahighperformanceliquidchromatography(HPLC)methodwasproposedtomonitorthesynthesisandpurificationofthe1-alkyl-3-methylimidazoliumionicliquidprecursorsfromalkylationof1-methylimidazolewithalkylhalidesanddeterminethepurityoffinalproducts.Theresultsshowedthatseparationof1-methylimidazolefromtheprecursorscouldbeobtainedundertheHPLCperformanceconditionssuchascationexchangecolumn,acetonitrile/KH2PO4aqueoussolutionand209nmwavelength.Thecontentofunreacted1-methylimidazoleintheprecursorscouldbeeasilycalculatedfromtheircorrespondingHPLCpeakareaswiththecalibrationcurveof1-methylimidazole.Theretentiontimesofthe1-alkyl-3-methylimidazoliumionicliquidprecursorsdecreasedwiththeirincreasingalkyls,andtheionicliquidswiththesamecationanddifferentanionshadalmostthesameretentiontimes.
%K 1-methylimidazole
%K purity
%K ionicliquid
%K precursor
%K HPLC
%U http://www.jproeng.com/qikan/Cpaper/zhaiyao.asp?bsid=708