Dissolved yellow organics: quantitative and qualitative aspects of extraction by four common techniques.
The dissolved yellow organic matter is removed from aliquots of the same freshwater sample by four common techniques: lyophilization, ion-exchange, ultrafiltration and organic solvent. Quantitative and qualitative aspects of the recovery, including fractionation by gel filtration and total nitrogen determinations, are presented.
D002625:Chemistry, Organic; D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D003116:Color; D005612:Freeze Drying; D005618:Fresh Water / Q000032:analysis*; D006812:Humic Substances; D008722:Methods; D009584:Nitrogen / Q000032:analysis; D055601:Organic Chemistry Phenomena; D012997:Solvents; D014462:Ultrafiltration; D014867:Water / Q000032:analysis*
D006812:Humic Substances; D012997:Solvents; D014867:Water; D009584:Nitrogen