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Cadmium Complexation in Culture Media
Abstract:
Square‐wave anodic stripping voltammetry (SW‐ASV) has been applied to monitor changes in the complexing capacity (CC) in a microbiological culture medium through different physiological states, focusing on cadmium interactions with the potential ligands. Total ligand concentration (Lt) is evaluated both from the titration curve and Ruzic linearization, with good agreement between the methods. Values obtained for the conditional stability constant suggest the occurrence of moderate ligands. Results show that the studied culture medium is capable of complexing cadmium and that the complexing capacity is affected by the physiological states of bacteria.
Keywords:Cadmium  Complexation  Culture media  Anodic stripping voltammetry  Bioremediation
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