1-s2.0-S0022231313001178-main

1-s2.0-S0022231313001178-mainStudyofthepHinfluenceontheopticalpropertiesofdissolvedorganicmatterusingfluorescenceexcitation–emissionmatrixandparallelfactoranalysisMingquanYana,n,QiangweiFub,DechaoLib,GunfaGaob,DongshengWangcaDepartmentofEnvironmentalEngineering,PekingUniversity,TheKeyLaboratoryofWaterandSedimentSciences,MinistryofEducation,Beijing100871,ChinabCollegeofEnvironmentalSciencesandEngineering,Chang’anUniversity,Xi’an,Shanxi,710064,ChinacStateKeyLaboratoryofEnvironmentalAquaticChemistry,ResearchCenterforEco-EnvironmentalSciences,CAS,POB2871,Beijing100085,ChinaarticleinfoArticlehistory:Received7November2012Receivedinrevisedform31January2013Accepted28February2013Availableonline30March2013Keywords:FluorescencePARAFACpHDissolvedorganicmatterabstractThisstudyinvestigatedtheopticalpropertiesofdissolvedorganicmatter(DOM)usingthefluorescenceexcitation–emissionmatrix(EEM)methodcombinedwithparallelfactor(PARAFAC)analysis.TheexaminedDOMsamplesincludedSuwanneeRiverfulvicacid(SRFA)andNord