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"Hilbrandt, Hannah S"
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Antimony Stable Isotope Systematics during Bacterial and Abiotic Redox Cycling
Antimony (Sb) is a relatively unstudied heavy metal. To further our understanding of its fate and transport, we have set out to determine the fractionation of 121Sb and 123Sb during anaerobic respiration. We have conducted research to demonstrate that bacteria isolated from a hypersaline environment can use antimonite [Sb(V)] as a terminal electron acceptor for anaerobic respiration. We set out to determine if Sb fractionation occurs during this metabolism. Our preliminary results are not conclusive, but we believe that further research on isolate bacteria from Mono Lake will prove that Sb fractionation occurs during respiration.
Dissertation