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. Author manuscript; available in PMC: 2012 Feb 1.
Published in final edited form as: Geochim Cosmochim Acta. 2011 Feb 1;75(3):784–799. doi: 10.1016/j.gca.2010.11.011

Fig. 6.

Fig. 6

Cu concentration (yellow squares) and δ65Cu (green circles) data plotted as a function of time for the reversibility experiment with B. subtilis (10 mg/L Cu and 5 g/L bacteria). The pH of the experiment was changed from 4 to 5 and back to 4 at the times identified by the dashed lines. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)