Validation and estimation of uncertainty of an analytical method to quantify total iron by the colorimetric method of phenantrolin in potable and natural water. Revista Científica Estelí, [S. l.], n. 34, p. 154–168, 2020. DOI: 10.5377/farem.v0i34.10014. Disponível em: https://revistas.unan.edu.ni/index.php/Cientifica/article/view/2158. Acesso em: 7 aug. 2025.