ICP-MS问答式培训

PerkinElmerPerkinElmerICPICP--MSMS1ICP-MSICP-MSICP-MSICP-MSICP-MSCDC…….GreenMarkBlueAngelEnvironmentalChoiceEnvironmentLabelNordicSwanGreenLabelEnvironmentChoiceEnvironmentLabelGermanyUSAJapanGermanyUSAJapanElementmg/Lmg/Lmg/LElementmg/Lmg/Lmg/LAg0.010.100.10Mo0.07Al0.200.20Na150As0.010.01Ni0.050.01B1.001.00P5.00Ba1.002.00Pb0.040.05Be0.004PtCaSb0.010.0060.002Cd0.010.0050.01Se0.010.050.01CoSiCr0.050.100.05SnCu3.001.001.00SrFe0.200.300.30Tl0.002Hg0.0010.002VK12.0Zn5.005.001.00LiU0.030.002Mg50.0Mn0.050.050.05CollectingwatersamplesEPASamplingTeamICP-MS(PerkinsElmerElan6100)PbisotopesPb1mg/L(ppb)107107Ag/Ag/109109AgAg0.08%0.08%Re/OsRe/OsAsSpeciationlSeparationofAs(III),As(V),MMAs,andDMAsMMAs=MonomethylarsonicacidDMAs=Dimethylarsinicacid-Alkalineseparation200mmol/LNaOH/DIwater+3%methanol-AS-16column(Dionex)withgradientelution01000020000300004000050000600000200400600800Time(seconds)Intensity(cps)AsBAs(V)As(III)MMAsDMAsDegradationProducts01000200030004000500060007000800090001000002468101214161820Time(min)Intensity(cps)As(V)MMAs(V)RoxAsAs(III)??????4-hydroxyphenylarsonicacid3-amino-4-hydroxyphenylarsonicacidGC-ICP-MSLA-ICP-MS2ICP-MSICP-MSDefinitionlAnanalyticaltechniquetodetermineElementsusingMassSpectrometryfromIonsgeneratedbyanInductivelyCoupledPlasmalMassspectroscopySeparation(byMass/Charge)andmeasurementofthemassofindividualatomsmakingupagivenmaterialeg.Naatmass23fromMgatmass24;chargeis1inargonplasma.ICP-OESGC-MSICP-MSICP-MSFirstdevelopedandintroducedinearlyeighties(1983,SCIEX)ICP............SampleInterfaceMassspectrometerDetectorThePurposeofthePlasmaDesolvation:DryingDropletsVaporization:ParticlestogasExcitation:EmissionAtomization:DissociationIonization:ElectronLosse-+nnGroundStateElectronGroundStateElectronnnQuantizedQuantizedOrbitalsOrbitals-BohrModelofHydrogennnQuantumofenergyisaddedQuantumofenergyisaddednnEnergySourceEnergySourceYYHeatHeatYYEnergeticelectronsandionsEnergeticelectronsandionsYYLightLight+ExcitationnnElectronreturnstolowerenergylevelElectronreturnstolowerenergylevelnnLightisemittedataspecificwavelengthLightisemittedataspecificwavelengthLight+DecayandEmissionExcitationEmissionEnergyIonExcitedStateIonGroundStateabcda,bexcitationcionizationdionexcitationefgheionemissionf,g,hatomemission}ExcitedStates{~λ4~λ3~λ2~λ1EnergyLevelDiagramnnManytransitionsarepossibleManytransitionsarepossiblennEmittedlightdependsonenergydifferenceEmittedlightdependsonenergydifferenceoftwostatesoftwostatesDecaywithEmissionofLight+ExcitedStates∆E=hν=hc/λh=Planck’sconstant,ν=frequency,c=velocityoflight,λ=wavelengthOriginsofAtomicSpectraPrincipleofAtomicSpectroscopyHHeLiMEnergyEmission(νe)Absorption(νa)IonizationAbsorption(νa)Emission(νe)GroundstateExcitationlevelIonizationV:IonizsationpotentialEn,Em:Excitationpotential∆E=En-Em=hνEnEmVBeICP-MS0102030405060708090020406080100AtomicnumberIonisationefficiency(%)LiBeBCBaMgAlSiPSClKCaScVTiCrMnZnGaGeCuFeNiCoAsSeBrRbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXeCsNaLanthanoidesHfTaWReOsIrPtAuHgTlPbBiPoRnRaAcNFKrHeONeArElectrontemperature:6,680KElectrondensity:1.4714x10cm-1ArICPICP--MSMSICP-MS-1.1mm0.9mm)ICP-MSICP-MSICP-MSICP-MSICP-MSICP-MSICP-MSICP-MSrELAN---SimulScangate/A/V••••••993ICP-MSPerkinElmerPerkinElmerSciexSciex————ICPICP--MSMS1983ELAN250ICP-MS1987ELAN500ICP-MS1990ELAN5000ICP-MS1994ELAN6000ICP-MS,1999ELAN6100ICP-MS,ELAN6100DRCICP-MSDynamicReactionCellDRC2001ELANDRCPlusDRC,AxialFieldTechnologyAFT2002ELAN9000ICP-MSELANDRCIIDRCELANDRC-eDRCICP-AESMassSprctrometryQ-ICP-MS1ICP-MSHR-ICP-MS2ICP-MSMC-HR-ICP-MS3ICP-MS1970s1980s1990s2000s1960sRCQ-ICP-MSDOSDOS/WINDOWSWINDOWSTOF-ICP-MSDRC-ICP-MS4ICP-MSICP-MS1970s1980s1990s2000s1960s123ICP-MS45ICP-MS51234ICP-MSMC-ICP-MSTOF-ICP-MSQ-ICP-MS+1983+FaradayDaly+FaradayDaly+ETPSF-ICP-MSCCT-ICP-MSDRC-ICP-MSORS-ICP-MS+ETP+ETP+ETPPerkinElmer------PerkinElmer--------AASl1961l1970l1988l1990l1994PerkinElmer------ELANProductHistorylELAN250-1983-FirstcommerciallyavailableICP-MS-Cryogenicpumpingsystem-On-boardcomputer-ManualoperationlELAN500-1987-Improvedsensitivity-Improvedresolution-newquadrupoleandpowersupply-OmniRangeextendeddynamicrange-CorrosionresistantsampleintroductionsystemPlasmaLokRFRFRFRFH.V.ToGroundToGroundRFH.V.RFH.V.ToGroundRFcoilturns01.5301.53RFcoilturnsPlasmapotentialPlasmapotentialAverageplasmapotentialAverageplasmapotentialConventionalSystemPlasmaLokSystem0v0v++--Rytonscott-TubingSaverELANProductHistorylELAN5000-1990Improvedreliabilityandeaseofuse-FirstturbopumpedICP-MS-FreerunningICPRFgenerator-Newquadrupoleandpowersupply-Improvedinterface-Windowing,mousecontrolledPCsoftware-TotalQuantspectralinterpretationandsemiquantitativeanalysispackage-On-boardcontinuoussystemdiagnosticsELANProductHistory–Smallestfootprintintheindustry–Firstsimultaneousautomaticextendeddynamicrangedetectionsystem–Improvedionopticaltrainwithimprovedperformance–Faster,morepowerfulquadrupolesystemAdvancedautomationandproductivitylElan6000-1994&Elan6100/DRC-1999AutoLensVoltageisfixedandfrequencychangeswithmassscanNeutralspeciesfromplasmaDRCcell(U+Vcoswt)150vShadowstopAutoLen