Spectrophotometric Determination of Chromium Using Indigo Carmine -Application in Various Samples. Baghdad Science Journal, Iraq, Baghdad, v. 13, n. 3, p. 0556, 2016. DOI: 10.21123/bsj.2016.13.3.0556. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2299.. Acesso em: 28 apr. 2024.