Figure 1. left: Copper sheets in water with glyphosate (left) and with AMPA (right); Right: Copper sheets in sodium carbonate with glyphosate (left), with AMPA (right), and without glyphosate or AMPA (middle)

From

Spectroscopic and Electrochemical Investigations of N-(Phosphonomethyl)glycine (glyphosate) and (Aminomethyl)phosphonic Acid (AMPA)

A. Habekost

World Journal of Chemical Education. 2015, 3(6), 134-140 doi:10.12691/wjce-3-6-2