GDMS working smart12

《GDMS working smart12》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、GDMSGlowDischargeMassSpectrometrySpecialistsinMaterialsCharacterizationLowPressureGlowDischargeIonSourceArgonAre-Ar*NegativeGlowAr+hnnnAr*Ar+M0M+M0MagneticSectorMagneticSectorM+MassAnalyzerM0M+MassAnalyzerAr+Ar+Ar+Ar+M0Ar*SampleM+DarkSpacee-Anode•Theglowdischargesourceservesasaverystablesourceofanal

2、yteionswithnoorminimalinfluenceofasamplepropertiesonanalyticalcharacteristics.•Thesampleisatomizedintheglowdischargeuniformly,layerbylayer.•Thesputteredspecies(predominantlyneutralatoms)diffuseintoaplasmawheresubsequentlyareionized.•Intheglowdischargesourcessputteringandionizationprocessesareseparat

3、edintimeandspace,whichleadstonegligiblematrixeffects.•Theglowdischargeworksasanatommillwithsputterratesintheorderof0.1-1microns/min.©Copyright2007EvansAnalyticalGroupLLC2ModelVG9000Schematically-LowPressureGDIonSource-LowPressureGDIonSource-ReverseNier-JohnsonGeometry-ReverseNier-JohnsonGeometry-Dou

4、bleFocusing-DoubleFocusing-DualDetectorw/AutomaticSwitching-DualDetectorw/AutomaticSwitching©Copyright2007EvansAnalyticalGroupLLC3TypicalApplications
Traceandultra-traceelementdeterminationsinhighpuritymetals,alloys,manufacturedcarbonsandgraphites,semiconductormaterials,variousoxides,carbidesandcera

5、mics.
Elementdepthprofilingofflatsurfacesformajor,minorandtraceelements.
Identificationofunknownsfromminuteamountofspecimen
Fullelementcharacterizationofpowdersorparticulatematerials©Copyright2007EvansAnalyticalGroupLLC4TypicalAnalyticalReportsTaIngotGaAsWafer©Copyright2007EvansAnalyticalGroupLLC5Su

6、mmary
DirectsolidsanalysisofadvancedmaterialsbyhighresolutionGDMStechniquescanprovidepreciseandaccurateanalyticaldatafortraceandultradatafortraceandultra-datafortraceandultra---traceelementswithoutlengthyandtraceelementswithoutlengthyandpotentiallyhazardoussamplepreparations.
Screeningdata,including

7、traceandultraScreeningdata,includingtraceandultra-Screeningdata,includingtraceandultra---traceelements,canbetraceelements,canbeobtainedbyGDMSevenwhenproperreferencematerialsarenotavailable.
NonNon-Non