GAO, Hong-Wen. Primary-Secondary Wavelength Spectrophotometry to Improve the Determination of Trace Amounts of Nickel in Waste Water. Asian Journal of Chemistry, [S. l.], v. 11, n. 3, p. 862–866, 2010. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/23390. Acesso em: 5 nov. 2024.