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All issues Volume 4 / No 1 (2025) Natl Sci Open, 4 1 (2025) 20240028 Full HTML

Table 1

Summary of representative hydrophilic ligands from their extraction performances and extraction experimental conditions

Ligand Experimental conditions Performances References
13 OP: 0.1 M HDEHP in NPH; AP: 100 mM DTPA with pH = 3, buffering with 2 M Na-Lactate SFNd/Am = 100 [22,103]
14 OP: 50 mM T2EHDGA/0.75 M HEH[EHP] in dodecane; AP: 0.3 HEDTA with 0.4 M citrate at pH = 3.4 SFEu/Am = 150 [31]
15 OP: 65 mM HEH[EHP] in dodecane; AP: 0.2 HEDTTA at pH = 3 SFEu/Am = 150 [88]
17 OP: 50 mM NTAamide (n-Oct) in dodecane; AP: 20 mM TEE-BisDGA at pH = 3 SFEu/Am = 11 [94]
19 OP: 50 mM NTAamide (n-Oct) in dodecane; AP: 20 mM SO3-TEX(m)-BisDGA at pH = 3 SFEu/Am = 34 [94]
20 OP: 0.3 M HDEHP, 0.6 M DMDOHEMA in TPH; AP: 0.5 M HEDTA at pH = 3 SFEu/Am = 12 [115]
21 (CH) OP: 0.3 M HDEHP, 0.6 M DMDOHEMA in TPH; AP: 0.5 M ligand at pH = 3 SFEu/Am = 36 [114,115]
21 (N) OP: 0.3 M HDEHP, 0.6 M DMDOHEMA in TPH; AP: 0.5 M ligand at pH = 3 SFEu/Am = 40 [114,115]
23 OP: 0.1 M MEHEHP in dodecane; AP: 20 mM DTTA-PyM buffering with 0.5 M malonate at pH = 2.5, I = 2.0 M NaClO4 SFNd/Am = 50 [117]
25 OP: 0.5 M Cyanex 301 GN in kerosene; AP: 0.1 mM HOPO at pH = 3.6, I = 1.0 M NaClO4 SFGd/Am = 50 [127]
OP: 0.5 M HDEHP in kerosene; AP: 1 mM HOPO at pH = 1.5, I = 1.0 M NaClO4 SFGd/Am = 30 [127]
26 OP: 20 mM TODGA with 5% (vol) octanol in TPH; AP: 0.5 M ligand in 0.5 M HNO3 SFEu/Am = 900 [89]
27 OP: 20 mM TODGA with 5% (vol) octanol in kerosene; AP: 0.01 M ligand in 0.28 M HNO3 SFEu/Am = 900 [90]
OP: 20 mM TODGA with 5% (vol) octanol in kerosene; AP: 0.01 M ligand in 1.04 M HNO3 SFEu/Am = 100 [90]
28 OP: 30 mM TODGA in kerosene; AP: 1 mM ligand in 0.05 M HNO3 with 1.0 M NaNO3 SFEu/Am = 1200 [85]
OP: 30 mM TODGA in kerosene; AP: 1 mM ligand in 0.3 M HNO3 with 1.0 M NaNO3 SFEu/Am = 170 [85]
29 OP: 20 mM TODGA with 5% (vol) octanol in TPH; AP: 100 mM ligand in 0.25 M HNO3 SFEu/Am = 144 [95]
30 OP: 20 mM TODGA with 5% (vol) octanol in TPH; AP: 50 mM ligand in 0.5 M HNO3 SFEu/Am = 30 [92]
31 OP: 20 mM TODGA with 5% (vol) octanol in TPH; AP: 10 mM ligand in 0.33 M HNO3 SFEu/Am = 47 [91]
32 OP: 50 mM TODGA with 5% (vol) octanol in kerosene; AP: 10 mM ligand in 1 M HNO3 with 0.5 M NH4NO3 SFEu/Am = 40 [175]

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