GAO, Hong-Wen; ZHANG, Peng-Fei. Ananlysis of Nickel Chelate solution with m-Chloroazo-antipyrine and Determination of Trace Amounts of Nickel in Wastewater. Asian Journal of Chemistry, [S. l.], v. 11, n. 3, p. 715–720, 2010. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/23369. Acesso em: 23 jul. 2024.