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1、英文摘要Investigationandappficationofnanofibersasthematerialusingforseparationandconcentration．AbstractSansitive．preciseandaccuratemethodologiesm-efondamantaltoolsinliresciencesresearch．However,thedevelopmentofbioanalyticalproceduresis∞eofthemostformidablechallengesfaced
2、bytheresearchers．Typicalsamples∞11101tandfflorecomplexmLxlxtres，inwhichtheanalytesofinterestc％bepresentinreducedamounts．Despitethegreattcchnolo舀caladvances，mostaaab瞳icalinsa-umantscannothandlesamplematricesdirectlyan正asaresult,asample-preparationstepiscommonlyin仃oduc
3、ecLFororganictraceanalysis,thisstopmainlycomprisesextractinns，whichSarVetoisolatecompoundsofinterestfromasamplema心．Ultimately,theconcenWatinaoftargetcorapoundsisenhanoed(enrichment)andtl’epresenceofmatrixcomponentsisrcd．_,wxxl(samplecleanup)．Solid-phasea(t阿c6∞hasbeen
4、widelyusedfbri船highselectivityandgoodreproducibilityforsamplepreparation．However,conventionalsolid-phase￡x'a'actionislaborintensive，useoforganiesolventantitimeconsuming．Onepotentialtechniqueforsolid-phaseextractiontOincreaseⅡ∞adsorptioneffectofthebedisl№ofsubstancesi
5、nnartometerorderasabsorbents．Althoughthesubmicrometer-sizedparticlesⅫgreatlyincreasethesurfacearea,impracticallyhighpressuresisn硎fortheliquidflOW,whichlimitstheapplication．However,nanomcterfibersbethecandidatesformaysorbents．Eleclxospanpolymersubmicrometerfibershaved
6、iametersinthenanometgTr'缸lgeandarearbitrarilylong．Iftheyarcp∽kedintothecolumn,thepressuredropwouldbelowerthanthecolumnpackedwithn跏me缸particles．Based锄1hishypothesis，itWaSrevealedtD∞thatnanofibersmaybehave印随enalytjcalpotemla
7、∞∞effectivesolid-phaseextractionsorbentforth
8、ealialyt鹤inthesamples．Itisas．‘Rulledthalthehugesurfacesofailumbcroffinenanofibersarecffectiveinadsorptionoftbeanalytes．beneficialtoincM日setheeffecincyofextraction．BasedOnthishypothesis。thenanofibersweremanufacturedbyelcccrospinning,andwereusedassolidphasesorbents．Com
9、p删totheconventionalsolid-phaseex=n-action,themethodismoreeffective，fast,andinlowcost,without∞iIIgpoisonousorganicsolvent．11kinvesti
