ABDULLAH, mohammad. Spectrophotometric Determination of Fe(II) and Fe(III) Using 5-(4-Ethylphenyl azo ) 2-Hydroxybenzaldehyde Oxime Reagent. Zanco Journal of Pure and Applied Sciences, [S. l.], v. 33, n. 6, p. 21–29, 2022. DOI: 10.21271/ZJPAS.33.6.3. Disponível em: https://zancojournal.su.edu.krd/index.php/JPAS/article/view/51. Acesso em: 17 may. 2024.