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 8 of 8 for “"soil and sediment samples"”.
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Determination of actinide elements in environmental samples by ICP-MS
… of the actinide elements in water, biological, soil and sediment samples have been developed using on-line solid phase extraction and high performance liquid chromatography (HPLC) coupled with inductively coupled plasma mass spectrometry (ICP-MS). Initial applications utilised a commercially …
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Monitoring pesticides in the soil, groundwater, and submarine groundwater discharge of the Chesapeake Bay Area
… shallow groundwater beneath agricultural sites, and if so, to determine a correlation between soil and groundwater pesticide concentrations. The second was to examine the correlation between pesticide concentrations measured by gas chromatography with electron capture detector (GC/ECD) and an …
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Investigation of Lead Hydrolytic Polymerization and Interactions with Organic Ligands in the Soil/Sediment-Water Environment
… was to investigate lead speciation in the soil/sediment-water environment and to better understand how the species affect lead mobility under different environmental conditions. The research involved both field soil and sediment samples as well as standard lead solutions. Field samples were …
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Speciation of Mercury by Chromatography Coupled with Atomic Spectrometry
A commercial GC-AFS instrument has been developed and optimised for the speciation of organomercury. This instrument couples a GC oven to a modified atomic fluorescence detector via a ceramic pyrolyser. Organomercury compounds in dichloromethane solvent were directly injected through a Programmable …
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Characterization of Extremophilic Bacteria for Potential in the Biofuel and Bioprocess Industries
… for harsh bioprocess conditions. Over 500 soil and sediment samples collected from 77 saline and/or thermal sites in the continental United States, Hawaii, and Puerto Rico were used to inoculate fermentations in an effort to optimize the microbial communities for a biofuel process developed …
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Environmental mineralogy of gold recovery from refractory gold-arsenic-bearing Bakyrchik concentrates
… minerals. In the case of gold ores, the mining and beneficiation may also produce As-bearing wastes and this can accelerate the natural mechanisms of As mobilization. The Bakyrchik is the largest gold deposit in Kazakhstan and one of the largest in the world. Gold (Au) is dispersed in pyrite and …
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Influence of natural organic matter on the mobility of arsenic in aquatic systems, soils and sediments
… one of the most dangerous inorganic contaminants and threats for the world’s water resources. Arsenic is ubiquitious in the earth crust and humans are especially affected through As polluted drinking water supplies. The occurrence of high As groundwater concentrations is often caused by geogenic …
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Konstruktion und Durchmusterung von Metagenombanken: Identifizierung und Charakterisierung von Genen und Genprodukten von am Polyol-Stoffwechsel beteiligten Oxidoreduktasen und Coenzym B12-abhängigen Dehydratasen
… Als Proben wurde Boden eines Zuckerrübenfeldes, Sediment des Flusses Grone (beide nahe Göttingen, Deutschland), Sediment des Solar Lake (Ägypten) und Sediment des Golfs von Eilat (Isarel) verwendet. Die Durchmusterung auf Glycerin- und Diol-Dehydratasen basierte auf der Komplementation eines …