Liquid-Liquid Extraction of Transition Metal Cations by Glyoximes and Their Macrocyclic Glyoxime Ether Derivatives

Table 4

Extraction of metal cations with L3 (%).

Metals	% Extraction
	pH ≅2,00	pH ≅3,00	pH ≅4,00	pH ≅5,00
Ni^+2	56,59 ± 0,69	15,38 ± 0,30	9,94 ± 0,39	4,31 ± 0,28
Co^+2	73,00 ± 0,88	28,73 ± 0,49	20,33 ± 0,44	5,63 ± 0,19
Cu^+2	78,28 ± 1,50	80,24 ± 1,77	82,09 ± 1,82	83,66 ± 1,34
Zn^+2	49,57 ± 0,74	25,13 ± 0,65	15,88 ± 0,33	14,48 ± 0,27
Cd^+2	69,39 ± 0,84	24,51 ± 0,56	10,81 ± 0,42	9,03 ± 0,57
Pb^+2	50,83 ± 0,69	20,14 ± 0,55	18,97 ± 0,68	17,79 ± 0,41
Hg^+2	76,29 ± 0,93	65,70 ± 0,81	50,12 ± 0,77	20,23 ± 0,59