es5b00601_si_001

es5b00601_si_001S1SupportingInformationSection12EffectsofIonicStrengthontheChromophoresofDissolvedOrganic3Matter4*YuanGao,†MingquanYan‡andGregoryKorshin,†5†DepartmentofCivilandEnvironmentalEngineering,UniversityofWashington,6Seattle,WA7‡DepartmentofEnvironmentalEngineering,CollegeofEnvironmentalSciencesand8Engineering,PekingUniversity,theKeyLaboratoryofWaterandSedimentSciences,9MinistryofEducation,Beijing100871,China1011Numberofpages:812Numberoffigure:413Numberoftables:214151617S2181920S321FigureS1(a)OriginalspectraofSRFArecordedatincreasingionicstrengths(DOC=5mg/L,22cuvettepathlength5cm,pH7);(b)Differentialabsorbancespectrapriortotheirnormalization23bycelllengthandDOCconcentration.pH5,DOC5mg/L,cuvettepathlength5cmand(c)24DifferentialabsorbancespectrapriortotheirnormalizationbycelllengthandDOC25concentration.pH7,DOC5mg/L,cuvettepathlength5cm262728S429FigureS2Log-transformedspectraofSRFArecordedatincreasingionicstrengths(DOC=530mg/L,celllength=5cm,pH=7)313233343536373839404142434445S546