Figure 7. Left: Solution of copper sulfate (0.01 mol) with the scavenging reagent. Right: Si-thiol silica gel (left) and copper-coated Si-thiol silica gel (right)

From

The Inhibition and Reactivation of Enzymatic Processes

A. Habekost

World Journal of Chemical Education. 2017, 5(3), 102-106 doi:10.12691/wjce-5-3-4