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ID:33364966
大小:5.75 MB
页数:216页
时间:2018-05-25
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1、仪器分析木志坚AASFourier-TransformUV-VISGC-MSHPLCCourseObjectivesLecture:Discusstheoryandbackgroundfor1)physical/chemicalpropertiesmeasured2)originofphysical/chemicalproperties3)Instrumentationandnatureofresponse4)Signalprocessingandrelationshipbetweenreadouttoproper
2、tiesmeasuredLaboratory:Provideshands-onexperiencein1)relatinglecturematerialtopracticalanalysis2)operationandmeasurementsonrangeofinstruments3)establishmentofinstrumentalmethodsofanalysis4)exampleanalysestoillustratevalueoftechniqueTeachfundamentalsofInstrumen
3、talanalysisChapter1IntroductionQualitative(定性)isthatmeasuredpropertiesindicatepresenceofanalyteinmatrix(基体).Quantitative(定量)isthatmagnitudeofmeasuredpropertiesisproportionaltoconcentrationofanalyteinmatrix.ClassificationofanalyticalmethodsSpeciesofinterestAllc
4、onstituentsincludinganalyteMatrix-analyte=concomitants(共存物)Oftenneedpretreatment-chemicalextraction,distillation,separation,precipitation1)ClassicalQualitative–identificationbycolor,indicators,boilingpoints,odorsQuantitative–massorvolume(e.g.gravimetric,volume
5、tric)2)InstrumentalQualitative–identificationbymeasuringphysicalproperties(e.g.spectroscopy,electrodepotential,massspectra)Quantitative–measuringpropertiesanddeterminingrelationshiptoconc.(e.g.spectrophotometry,massspectrometry)Chapter1IntroductionThesciencean
6、dartofdeterminingchemicalcomposition,state,concentrationorstructureofmaterialswithinstrumentsbasedonphysicalorphysicochemicalpropertiesofaparticularelementorcompound.DefinitionofinstrumentalanalysisChemical/physicalinformationobservablesignalsInstrumentsChapte
7、r1Introduction1)Interactionofradiantenergywithmatter2)Electricalandelectrochemicalproperties3)Inter-phaseseparation4)OtherpropertiesPhysicalpropertiesusefulininstrumentalanalysisMechanicalpropertiesThermalpropertiesNuclearpropertiesExtensivepropertiesChapter1I
8、ntroductionClassificationofmaininstrumentalmethods1)OpticalmethodsAtomicMolecularAbsorption:spectroscopy(AAS)Emission:spectroscopy(AES)FluorescencespectroscopyUV-VISspectrophotomet
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