1.
Ammar SH, Abdul-Nabi WAW, Rasheed MK. Extraction of Zn (II) and Cu (II) Ions Using PEG (300) - KCl Salt Aqueous Two-Phase Systems. alkej. 2011;7(2):68-74. Accessed January 4, 2026. https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/49