温度控制离子液体微富集技术在环境分析化学中的应用研究(1)

《温度控制离子液体微富集技术在环境分析化学中的应用研究(1)》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、ABSTRACTDispersiveliquid—liquidmicroextraction(DLLME)wasanovelandenvironmental．friendlysamplepretreatmenttechnology,whichhadbeenprovedtobeasensitive，simple，easytooperatetechniquewithhighenrichmentfactor．Dispersiveliquid．1iquidmicroextraction(DLLME)WasanewexnactionmodeofLPME，wh

2、ichhadsomeadvantagessuchasrapid，easytooperateandhighsensitivity．However,itusuallyutilizedchlorobenzene，carbontetrachlorideorothertoxicorganicsolvents嬲thedispersivesolventsandextractionsolvents，andwhichputpotentialthreat011theenvironmentandoperators·Ionicliquidhadbeenconsidered

3、asgreensolventforitsspecialcharacterssuchaslowvaporpressure，almostnovolatility,highstabilityandtheexcellentmiscibilitywithinorganicandorganiccompounds，whichmadeitwidelyusedinmanyfields．Basedonthesefacts，anovelgreensamplepreconcentrationtechniquenamedas“temperature-controlledio

4、nicliquiddispersiveliquid．1iquidmicroextraction”wasdesignedanddeveloped．Thisnoveltechnologywassuccessfullycompletedwithouttoxicorganicsolventsintheenrichmentstep，hadmuchhigherenrichment．Severalme吐10dSbasedontemperature-controlledionicliquidDLLMEweredevelopedfortheandsens“ivera

5、piddeterminationofphenols，aromaticamines，PAils，Atrazine，simazine，cyanazine，bisphcnolA，4-nonylphenol，4-octylphen01．Thisthesisiscomposedofsixchapters：Inthefirstchapter,onthebasisofalargenumberofliteratures，areviewwaspresentedontheapplicationofpreconcentractionmethodsintheanalysi

6、sofenvironmentalpollutantsandtheprogressofthedevelopmentandtheapplicationofDLLME．hthesecondchapter,anewmethodwasdescribedforthedeterminationoffourphenoIsbased∞temperature—controlledionicliquiddispersiveliquid—liquidmicro．extractioncoupledwithHPLC．[CsMIM][PF6]Wasusedastheextrac

7、tionsolvent，theeffectsofthevolumeofextractions01vent，pHofworkingsolution，extractiontime，dissolvedtemperature，ccntrifugationtimeandsalt．outeffect、Ⅳereoptimizedindetail．Undertheoptimalextractioncondition，theexperimentalresultsindicatedmattllelinearrange，precisionsanddetectionlim

8、itsoftheproposedmethodwereintherangeof1．0．100鹇L．1，2·1-7．2％and