0000000000286079

AUTHOR

C. B. Dissanayake

showing 3 related works from this author

The niobium and yttrium abundances in the sedimentary gem deposits of Sri Lanka

1986

MultidisciplinarychemistryNiobiumGeochemistrychemistry.chemical_elementSedimentary rockYttriumSri lankaGeologyJournal of the National Science Foundation of Sri Lanka
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Reply to the discussion by E. Soman

1985

chemistry.chemical_compoundGeophysicschemistryGeochemistry and PetrologySomanGeochemistryEconomic GeologyGeologyMineralium Deposita
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The abundance of Au, Pt, Pd, and the mode of heavy metal fixation in highly polluted sediments from the Rhine River near Mainz, West Germany

1984

The Au, Pt and Pd contents of the sediments of Ginsheimer‐Altrhine River, a channel of the Rhine river which drains one of the most industrialized regions of western Europe, have been determined by flameless atomic absorption spectrophotometry. The abundances of these noble metals range from 96–460 ppb Au; 734 ppb‐31 ppm Pt and 32 ppb‐4 ppm Pd. The extremely high concentrations, particulary those of Pt and Pd, are attributed to their use in industry and are due to the formation and concentration of metal‐organic complexes, mainly at the interface between an extremely reducing and an oxidizing aquatic environment. Differential thermal analyses of the polluted sediments in comparison to the p…

chemistry.chemical_classificationEcologyGeography Planning and DevelopmentSedimentchemistry.chemical_elementengineering.materialPollutionSoil contaminationlaw.inventionMetalchemistrylawvisual_artEnvironmental chemistryOxidizing agentvisual_art.visual_art_mediumengineeringHumic acidNoble metalComputers in Earth SciencesAtomic absorption spectroscopyPlatinumWaste Management and DisposalInternational Journal of Environmental Studies
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