Spectrophotometric Determination of Aminophenol Isomers in Aqueous Solution using 1,2-Naphthoquinone-4-sulphonate Reagent. Pakistan Journal of Analytical & Environmental Chemistry, Pakistan, v. 12, n. 1 & 2, p. 68–75, 2011. DOI: 10.21743/. Disponível em: https://pjaec.pk/index.php/pjaec/article/view/405. Acesso em: 12 jul. 2025.