Figure 9
Normalized peak intensities from positive (top) and negative (bottom) ion ToF-SIMS of freshly polished and oxidized chalcopyrite. The inset in the negative-ion graph is an expansion of the sulfur species peak intensities. Light grey, freshly polished; dark grey, oxidized in pH 9 solution. Error bars represent the statistically significant confidence intervals (P = 95%) for each mass signal. |