chromium reduction

A reduced inorganic sulphur analysis technique has now been developed using chromium reduction.

Though the multicolored samples were difficult to analyze, researchers are confident that they likely underwent the same chromium reduction as the artificially aged samples.

The color change was similar to that seen in the Van Gogh painting, and with X-ray analysis the researchers pinpointed the change to the chromium reduction.

Acid sulfate soils are tested on a routine basis using the POCAS and chromium reduction methods.