XIE*, F.Z.; ZHANG, F.J.; XUAN, H.; GE, Y.J.; WANG, Y.; CAO, T. Selective Trace Analysis of Bismuth in Water and Sediment Samples Based on Solid Phase Extraction Using a Modified Silica Gel Containing Oxygen and Nitrogen Donor Atoms. Asian Journal of Chemistry, [S. l.], v. 23, n. 5, p. 2351–2356, 2011. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/10337. Acesso em: 30 jun. 2024.