SICDOM性质relation to structure

SICDOM性质relation to structureS1SupportingInformationTitle:OpticalPropertiesofHumicSubstancesandCDOM:RelationtoStructureAuthors:ErinS.Boyle,NicolasGuerriero,AnthonyThiallet,RossanaDelVecchio†*andNeilV.Blough*DepartmentofChemistryandBiochemistry,UniversityofMaryland,CollegePark,Maryland20742†EarthSystemScienceInterdisciplinaryCenter,UniversityofMaryland,CollegePark,Maryland20742*CorrespondingAuthors.E-mail:(N.V.B.)neilb@umd.eduand(R.D.V.)rossdv@umd.eduNumberofpages:25Figures:21(pagesS5-S25)FiguresCaptions(pagesS2-S4)Literaturecited(pageS4)S2SupportingInformation_FiguresCaptions.FigureS1.Dependenceofabsorptioncoefficientat280and355nmforSRFA,SRHA,LAC,CDOMandtheC18extractsontotalligninphenolcontent(TLP).Linesrepresentthelinearregressionswithparametersreportedwithinthefigure.FigureS2:LAC-F2andLAC-F6opticalproperties:absorption();emissionmaxima,λmaxandluminescencequantumyield(φ)(λexfrom280to600nm).LAC_F2andLAC-F6werefractionscollectedfollowinglowpressureGPCfractionationoveraG-50sephadexcolum