/ Square Wave Voltammetry
X
Square wave voltammograms for two earth pigments extracted from Castulo samples attached to graphite bar in contact with 0.10 M HCl aqueous solution. Potential step initiated at +0.85 V vs. Ag/AgCl (3 M NaCl) in the negative direction; potential step
Square wave voltammograms for two earth pigments extracted from Castulo samples attached to graphite bar in contact with 0.10 M HCl aqueous solution. Potential step initiated at +0.85 V vs. Ag/AgCl (3 M NaCl) in the negative direction; potential step increment 4 mV; square wave amplitude 25 mV; frequency 5 Hz.