Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"thioarsenates"”.
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Investigations towards a better understanding of arsenic-sulfur speciation in aquatic environments: Formation, stability, structural characterization, and conflicting analyses
… the nature of these species, thioarsenites vs. thioarsenates, has been under intense debate. The major objective of the present PhD work was to improve the current knowledge about As-S species by structural characterization, investigations of their occurrence, formation and transformation, and …
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Effects of sulfur complexation on intestinal transport and toxicity of metalloids in cell cultures
… bioavailability and cytotoxicity of methylated thioarsenates. No data existed about inorganic thioarsenates, even though their formation during pre-systemic arsenic metabolism was already proven. For selenium compounds, a reported general higher cytotoxicity of selenosulfate compared to selenite …
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Importance of Sulfide, Polysulfides, and Elemental Sulfur for Abiotic and Biotic Redox Processes in Sulfur-Metal(loid)Systems
… sulfide and to rapidly oxidize to pentavalent thioarsenates. The latter were suggested to form directly by the reaction of arsenite with polysulfides. In the present study, polysulfides were found to react with arsenite to form monothioarsenate. Moreover, the higher nucleophilicity of …
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Schwefelhaltige Arsenspezies in Grundwässern
Es wurde eine Arsenkontamination von Boden und Grundwasser im Bereich einer Zellstofffabrik untersucht, die auf Ablagerungen von Eisenoxidschlacken (Rückstände aus der Pyritröstung) mit hohem Gehalt an verschiedenen Spurenelementen zurückzuführen ist. Der Standort ist dadurch gekennzeichnet, dass …