The effect of adsorbed lipid on pyrite oxidation under biotic conditions

Table 1 Summary of experimental observations for the amount of pyrite oxidation in the presence of lipid and bacteria.

Samples	Lipid Amount	Oxidation rate* (10^-8M s^-1m^-2)	% Oxidation Suppression^#
A. ferrooxidans/Pyrite	N/A	1.62 ± 0.1	N/A
A. ferrooxidans/Lipid/Pyrite	7.5 μmol	0.30 ± 0.02	81
Lipid/Pyrite	7.5 μmol	0.088 ± 0.005	95
Pyrite	N/A	0.21 ± 0.01	N/A

N/A denotes Not Applicable
*Rates are estimated from a linear regression analysis of the final 10 days of data in Figure 1.
^#Values are relative to A. ferrooxidans/Pyrite rate.

ISSN: 1467-4866