Cubillán, D., Núñez, N., González, G., & Camargo, N. (1). Optimization of the potentiometric technique with ion selective electrode for evaluating sulfate ion in aqueous samples. Rev. Téc. Fac. Ing. Univ. Zulia, 25(2). Recuperado a partir de https://mail.produccioncientificaluz.org/index.php/tecnica/article/view/5779