MOLLAEI, Kazem; HOSSEIN MASHHADIZADEH, Mohammad. Solid Phase Extraction and Preconcentration of Copper(II) Using a Thia-crown-ether Modified Octadecyl Silica Membrane Disk. Asian Journal of Chemistry, [S. l.], v. 17, n. 3, p. 1390–1396, 2016. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/14014. Acesso em: 30 jun. 2024.