Del Tóro Déniz, R., M. Rajmanko, E., Peón Espinosa, A. M., & Peña Velázquez, I. (1997). Influence of the medium (strongly acid or basic) over the electrochemical properties of the nitrate selective electrode. Eclética Química, 22(1), 23–30. https://doi.org/10.26850/1678-4618eqj.v22.1.1997.p23-30