da Silva, Lucinei Stechmann, Tiago Nieswald Oliveira, Marco Aurélio Ballin, and Carlos Roberto de Menezes Peixoto. 2006. “Ascorbic Acid Determination Using a Carbon Paste Electrode Modified With iron(III) Ions Adsorbed on Humic Acid”. Eclética Química 31 (4):39-42. https://doi.org/10.26850/1678-4618eqj.v31.4.2006.p39-42.