光腔衰荡光谱(CRDS)技术

中国地质大学（武汉）材化学院课程名称：文件检索班级：031111姓名：刘欢学号：20111000544题目(4)：光腔衰荡光谱(CRDS)技术1.Comparisonofwaterisotope-ratiodeterminationsusingtwocavityring-downinstrumentsandclassicalmassspectrometryincontinuousice-coreanalysis作者：OliviaJ.Maselli,DiedrichFritzsche,LawrenceLayman,JosephR.McConnell,HannoMeyer作者单位：DesertResearchInstitute;;Alfred-WegenerInstituteforPolarandMarineResearch刊名：IsotopesinEnvironmentalandHealthStudies,2013,Vol.49(3),pp.387-398来源数据库：Taylor&Francis期刊DOI：10.1080/10256016.2013.781598关键词：cavityring-down;hydrogen-2;ice-core;isotopemeasurements;methodsandequipment;oxygen-18;paleoclimatology;water;原始语种摘要：Wepresentadetailedcomparisonbetweensubsequentversionsofcommerciallyavailablewavelength-scannedcavityring-downwaterisotopeanalysers(L2120-iandL2130-i,PicarroInc.).Theanalysersareusedinparallelinacontinuousmodebyadaptionofalow-volumeflashevaporationmodule.Applicationoftheanalyserstoice-coreanalysisisassessedbycomparisonbetweencontinuouswaterisotopemeasurementsofaglacialice-corefromSevernayaZemlyawithdiscreteisotope-ratiomassspectrometrymeasurementsperformedonparallelsamplesfromthesameice-core.Thegreatadvancesbetweeninstrumentversions,particularlyinthemeasurementofδ2H,allowthecontinuoustechniquetoachievethesamehighlevelofaccuracyandprecisionobtainedusingtraditionalisotopespectrometrytechniquesinafractionoftheexperimenttime.However,whenappliedtocontinuousice-coremeasurements,increasedintegrationtimesresultinacompromiseoftheachievabledepthresolutionoftheice-corerecords.相似文献：[1]OlgaGarmash.DepositionHistoryofPolychlorinatedBiphenylstotheLomonosovfonnaGlacier,Svalbard:A209CongenerAnalysis.[J].Environ.Sci.Technol.,2013[2]UlrichSchimschal.Mathematicalmodelofgamma-rayspectrometryboreholeloggingforquantitativeanalysis(Open-filereport/United....[M].,19812.Towardareal-timemeasurementofatmosphericmercuryconcentrationsusingcavityring-downspectroscopy作者：X.Faïn,H.Moosmüller,D.Obrist刊名：AtmosphericChemistryandPhysicsDiscussions,2009,Vol.9(5),pp.22143来源数据库：DOAJ期刊原始语种摘要：Anewsensorbasedoncavityring-downspectroscopy(CRDS)hasbeendevelopedforthemeasurementofgaseouselementalmercury(Hg0)massconcentrationwithsub-ngm−3detectionlimitandhightemporalresolution.Cavityring-downspectroscopyisadirectabsorptiontechniquethatutilizespathlengthsofuptomultiplekilometersinacompactabsorptioncellandhasasignificantlyhighersensitivitythanconventionalabsorptionspectroscopy.Ourprototypeusesafrequency-doubled,tuneabledyelaseremittingpulsesat~253.65nmwithapulserepetitionfrequencyof50Hz.ThedyelaserincorporatesauniquepiezoelementattachedtoitstuninggratingallowingittotunethelaseronandofftheHg0absorptionlineonapulsetopulsebasistofacilitate...differentialabsorptionmeasurements.Hg0absorptionmeasurementswiththisCRDSlaboratoryprototypearehighlylinearlyrelatedtoHg0concentrationsdeterminedbyaTekran2537BanalyzeroveraHg0concentrationrangeoffourordersofmagnitude,from0.2ngm−3to573ngm−3implyingexcellentlinearityofbothinstruments.ThecurrentCRDSinstrumenthasa~sensitivityof0.10ngm−3at10stimeresolution.ThistoolopensnewprospectsforthestudyofHg0becauseofitshightemporalresolutionandreducedlimitedsamplevolumerequirements(0.5lofsampleair).FutureapplicationsmayincludeambientHg0fluxmeasurementswitheddycovariancetechniques,whichrequiremeasurementsofHg0concentrationswithsub-ngm−3sensitivityandsub-secondtimeresolution.相似文献：[1]PaulJB.Ultrasensitiveabsorptionspectroscopywithahigh-finesseopticalcavityandoff-axisalignment..[J].AppliedOptics,2008,40(27)[2]ZinggW.Insulinabsorptionfromtheperitonealcavity..[J].Lifesupportsystems:thejournaloftheEuropeanSocietyforArtificialOrgans,1985,3(4)[3]SynovetsAS.[Effectofproteolyticenzymesandtheirinhibitorsonabsorptionfromtheabdominalcavity]..[J].Fiziologicheski?zhurnal,1980,26(5)[4]GhermanTitus.Modelockedcavity--enhancedabsorptionspectroscopy..[J].OpticsExpress,2002,10(19)[5]MorvilleJérĵme.Effectsoflaserphasenoiseontheinjectionofahigh-finessecavity..[J].AppliedOptics,2002,41(33)[6]WilliamsSkip.QuantitativedetectionofsingletO2bycavity-enhancedabsorption..[J].OpticsLetters,2004,29(10)[7]SpulerScott.Numericalanalysisofbeampropagationinpulsedcavityring-downspectroscopy..[J].AppliedOptics,2002,41(15)[8]ZhaoHui.[Off-axiscavityenhancedabsorptionspectroscopydetectiontechniquesforthemeasurementofcarbondioxide]..[J].GuangPuXueYuGuangPuFenXi/SpectroscopyandSpectralAnalysis,2012,32(1)[9]GarroBarrioJ.[Causesoffracturesinamalgamcavityrestorationsandtheirprevention]..[J].Revistadeactualidadestomatológicaespa?ola/IlustreConsejoGeneraldeColegiosdeOdontólogosyEstomatólogosdeEspa?a,1984,44(335)[10]DouvitsasGP.[Newaspectsincavitypreparationforamalgamrestorations]..[J].Stomatologia,1983,40(4)[11]ThomasAE.Evaluationofprinciplesofcavitypreparationdesign..[J].TheAlabamajournalofmedicalsciences,1983,20(4)[12]EamesWB.Theeffectsoftrichloroaceticacidonthehardandsofttissuesoftheoralcavity..[J].JournaloftheGeorgiaDentalAssociation,1973,47(2)[13]WangT.Experimentalobservationofphotonechoesandpower-efficiencyanalysisinacavityenvironment..[J].Opticsletters,2007,23(22)[14]ZippilliStefano.Sup