Cesarino, I., Marino, G., Matos, J. do R., & Cavalheiro, Éder T. G. (2007). Evaluation of a carbon paste electrode modified with organofunctionalised SBA-15 silica in the determination of copper. Eclética Química, 32(2), 29–34. https://doi.org/10.26850/1678-4618eqj.v32.2.2007.p29-34