资源描述：
《Advances in solventmicroextraction》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、TrendsTrendsinAnalyticalChemistry,Vol.43,2013Advancesinsolvent-microextractiontechniquesJohnM.KokosaSinceitsinceptionin1995,solvent-microextraction(SME)techniquesforsamplepreparationhavegrownincreasinglypopularduetotheirsimplicity,lowcost,andadaptabilitytoawidevarietyofsampletypesandanalytes.S
2、MEmethodsareusedaloneorasfinalclean-upandconcentrationtechniquesinpreparingenvironmental,clinical,forensic,personal-care,pharmaceuticalandfood-productsamples.TherearetwobroadcategoriesofSME:exposed-solventandmembrane-protectedsolventtechniques.Theprincipalexposed-droptechniquesincludesingle-dro
3、pmicroextraction(SDME),headspacesingle-dropmicroextraction(HS-SDME),liquid-liquidmicroextraction(LLME),liquid-liquid-liquidmicroextraction(LLLME)anddispersiveliquid-liquidmicroextraction(DLLME).Theprincipalmembrane-protectedmodesarehollow-fiber-protected2-phasemicroextraction[HF(2)ME]andhollow-
4、fiber-protected3-phasemicroextraction[HF(3)ME].Inrecentyears,interestinSMEhasincreasinglyturnedtorefinementsofthesemodesforuseinpracticalsamplepreparations.Thishasinvolvedinnovations(e.g.,ionicliquids,ultrasonic-assistedemulsification,automation,andlow-densitysolventsforDLLME).Inthisreview,weexpl
5、oretheseandotherSMEinnovationsappearingintheliteratureintheperiodfrommid-2010tomid-2012.ª2012PublishedbyElsevierLtd.Keywords:Dispersiveliquid-liquidmicroextraction(DLLME);Exposedsolvent;Headspacesingle-dropmicroextraction(HS-SDME);Hollow-fiber-protected2-phasemicroextraction[HF(2)ME];Hollowfib
6、er-protected3-phasemicroextraction[HF(3)ME];Liquid-liquid-liquidmicroextraction(LLLME);Liquid-liquidmicroextraction(LLME);Membrane-protectedsolvent;Single-dropmicroextraction(SDME);Solventmicroextraction(SME)1.Introductionusedtodescribethisprocessand,whilejustJohnM.Kokosa*asanappropriatedescri
7、ptivetermasSME,MDRCConsulting,MottApracticaldefinitionofsolventmicroex-LPMEisassociatedbymanywiththeCommunityCollege,Flint,traction(SME)isatechniqueofsamplemembrane-protectivemodesofSME,ra-MI48503,USApreparationbyextractionandconcentra-t
