DOM的光化学转化

DOM的光化学转化ChemicalandopticalphototransformationofdissolvedorganicmatterStevenLoisellea,b,*,DavideVionec,d,ClaudioMineroc,ValterMaurinoc,AntonioTognazzia,b,ArduinoM.Dattiloa,b,ClaudioRossia,b,LucaBracchinia,baDip.FarmacoChimicoTecnologico,Universita`degliStudidiSiena,ViaAldoMoro2,53100Siena,ItalybCSGI(Inter-UniversityCenterforColloidandSurfaceScience),ViadellaLastruccia3,50019SestoFiorentino(FI),ItalycDipartimentodiChimicaAnalitica,Universita`degliStudidiTorino,ViaPietroGiuria5,10125Torino,Italy1dCentroInterdipartimentaleNatRisk,Universita`degliStudidiTorino,ViaLeonardodaVinci44,10095Grugliasco(TO),Italy2articleinfoArticlehistory:Received19December2011Receivedinrevisedform24February2012Accepted29February2012Availableonline23March2012Keywords:PhotochemistryPhotogeneratedtransientsDirectandsensitizedphotolysisAbsorptionspectralslopePhotobleachingabstractDissolvedorganicmatterrepresentsthemainreservoiroforganiccarboninmostaquaticecosystems.Inthepresentstudy,wedeterminedtheopticalchangesandt