Spectrophotometric determination of Zinc(II) in solutions samples using 1-azobenzene-3-(3-hydroxyl-2-pyridyl)-triazene in the Surkhandarya region. American Journal of Engineering , Mechanics and Architecture (2993-2637), [S. l.], v. 1, n. 10, p. 16–20, 2023. Disponível em: https://grnjournal.us.e-scholar.org/index.php/AJEMA/article/view/1764. Acesso em: 27 jan. 2026.