烷基膦酸改性鋯鎂復(fù)合氧化物高效液相色譜固定相性能研究.pdf

1、華中師范大學(xué)碩士學(xué)位論文烷基膦酸改性鋯鎂復(fù)合氧化物高效液相色譜固定相性能研究姓名：付紅靖申請學(xué)位級別：碩士專業(yè)：有機(jī)化學(xué)指導(dǎo)教師：馮鈺qi張友杰2000.5.1ABSTRACTAnewpackingmaterial，magnesiazirconiacomposite，hasbeenpreparedbysol—gclprocessTheelectronmicroscopy，differentthermalanalysisthermalgr

2、avimetricanalysis，X—raydiffraction，nitrogenadsorptionandelectroenergyspectroscopywereusedtoevaluatethepropertiesofthecompositeBeRerporestructureandpromisingporesizedistributionofthecompositewereobtainedcomparedwitllthato

3、fzirconilThesurfaceareaporesizedistributionandcrystalformofmagnesiazirconiacompositetreatedatdifferenttemperaturewerealsoinvestigatedThemagnesiazirconiacompositeWasfoundtobesuitableforthepackingmaterialforHPLCThealkylpho

4、sphonatemodifiedmagnesiazirconiacomposite(PMZ)hasbeensynthesizedasareversedphaseHPLCstationaryphaseandcharacterizedbythemeansofElementanalysis，F(xiàn)TIRspectrum，”CCPMASNMRspectrumhavebeenusedtocharacterizethenewstationaryphas

5、eThispackingmaterialisstableinawidepHrange(pH211)ThechromatographicbehaviorofPAHs，basiccompounds，nucleosidesandbasesonthePMZcolumnwereinvestigatedThehydrophobicinteractionisthemainfactorcontributingtotheretentionofPAHs；w

6、hileforbasiccompotmds，nucleosidesandbases，theioninteractionplaysallimportantroleintheretentionofthesessolutesnlesolutesmentionedabovecanbesatisfactorilyseparatedonthePMZcolumnThedependenceofretentionontemperatureonthePMZ

7、columnWasinvestigatedTheretentionofPAHsandbasiccompoundsWasmeasuredinthetemperaturerangeof125600CⅥ曲ationofenthalpyforthetransferofasolutefromthemobilephasetothestationaryphasewereevaluated111eresultssupportedOurdescripti

8、onforthemechanismofthesolutes：TheretentionofPAHsisresultfromthehydrophobicdrivingforce，whileforbasiccompounds，notonlyfromhydrophobicforcebutalsoionexchangeinteractionKeywordsmagnesiazireoniacomposite；alkylphosphonatemodi