Designation:E1361−02(Reapproved2014)´1StandardGuideforCorrectionofInterelementEffectsinX-RaySpectrometricAnalysis1ThisstandardisissuedunderthefixeddesignationE1361;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—EditorialcorrectionsweremadethroughoutinApril2015.1.Scope1.1Thisguideisanintroductiontomathematicalproce-duresforcorrectionofinterelement(matrix)effectsinquanti-tativeX-rayspectrometricanalysis.1.1.1Theproceduresdescribedcorrectonlyfortheinterele-menteffect(s)arisingfromahomogeneouschemicalcompo-sitionofthespecimen.Effectsrelatedtoeitherparticlesize,ormineralogicalormetallurgicalphasesinaspecimenarenottreated.1.1.2Theseproceduresapplytobothwavelengthandenergy-dispersiveX-rayspectrometrywherethespecimenisconsideredtobeinfinitelythick,flat,andhomogeneouswithrespecttothedepthofpenetrationoftheexcitingX-rays(1).21.2Thisdocumentisnotintendedtobeacomprehensivetreatmentofthemanydifferenttechniquesemployedtocom-pensateforinterelementeffects.ConsultRefs(2-5)fordescrip-tionsofothercommonlyusedtechniquessuchasstandardaddition,internalstandardization,etc.2.ReferencedDocuments2.1ASTMStandards:3E135TerminologyRelatingtoAnalyticalChemistryforMetals,Ores,andRelatedMaterials3.Terminology3.1Fordefinitionsoftermsusedinthisguide,refertoTerminologyE135.3.2DefinitionsofTermsSpecifictoThisStandard:3.2.1absorptionedge—themaximumwavelength(mini-mumX-rayphotonenergy)thatcanexpelanelectronfromagivenlevelinanatomofagivenelement.3.2.2analyte—anelementinthespecimentobedeterminedbymeasurement.3.2.3characteristicradiation—Xradiationproducedbyanelementinthespecimenasaresultofelectrontransitionsbetweendifferentatomicshells.3.2.4coherent(Rayleigh)scatter—theemissionofenergyfromalooselyboundelectronthathasundergonecollisionwithanincidentX-rayphotonandhasbeencausedtovibra...
