A saturated calomel electrode SCE and high purity graphite were used as reference and counter electrodes, respectively. The exposed area was 0.8 cm.
Para ello se utilizaron las recomendaciones de la norma ASTM G5 ASTM G5-87, 1999 y se empleó un contraelectrodo de grafito de alta pureza y un electrodo de referencia de calomel saturado SCE.