title: Determination of heavy metals in humic substances by instrumental photon activation analysis.
abstract: Photoactivation analysis is used for the determination of heavy metals in water and humic substances. Isolated humic acids serve as a carrier of environmental pollutants. The investigation of the drinking water catchment area in the middle German conurbation Leipzig/Halle shows it to be endangered from old neglected deposits of toxic wastes (chemical factory destroyed during World War II). Elevated concentrations of the elements zinc, cadmium, lead, and mercury in humic acids from surface waters were found.
authors.affiliation: Universität Leipzig, Bereich Geowissenschaften, Abteilung Geochemie, Germany.
authors.forename: D
authors.initials: D
authors.lastname: Schulze
authors.forename: H
authors.initials: H
authors.lastname: Kupsch
authors.forename: C
authors.initials: C
authors.lastname: Segebade
mesh_terms: D000201:Activation Analysis; D005858:Germany; D006812:Humic Substances / Q000032:analysis*; D008670:Metals / Q000032:analysis*; D017785:Photons; D014462:Ultrafiltration; D014874:Water Pollutants, Chemical / Q000032:analysis; D014881:Water Supply / Q000032:analysis
chemical_list: D006812:Humic Substances; D008670:Metals; D014874:Water Pollutants, Chemical