de Souza, J. C., A. T. Toci, M. A. Beluomini, and S. de P. Eiras. “Determination of Copper in Sugarcane Spirit by Flame Atomic Absorption Spectrometry Using a Ternary Solvent Mixture (water-Ethanol-Acetone)”. Eclética Química, vol. 42, no. 1, Apr. 2018, pp. 33-39, doi:10.26850/1678-4618eqj.v42.1.2017.p33-39.