Colina M, Gardiner PH, Rivas Z, Troncone F. Modified procedure for the simultaneous determination of nitrogen, phosphorus and sulphur by hydrogen peroxide microwave digestion and ion chromatography. Ciencia [Internet]. 1 [citado 3 de agosto de 2025];14(1). Disponible en: http://www.produccioncientifica.luz.edu.ve/index.php/ciencia/article/view/9316