Table 2.

Interferences effect on the extraction of 1.0 mg·L⁻¹ Zr(IV) on 20.0 mg SG-APTMS-N,N-EPANTf₂ (N = 3).

Coexisting Ions	Concentration (mg·L−1)	Extraction of Zr(IV) (%)
Na+, K+, NH4+	3000	98.37
Ca2+, Mg2+	3000	97.04
Cd2+	500	97.58
Cu2+	500	96.17
Pb2+	500	96.90
Zn2+	600	95.24
Fe3+	300	93.88
Al3+	400	95.33
Cr3+	400	94.45
Cl−, F−, NO3−	7000	98.57
CO32−, SO42−	6000	97.39
PO43−	5000	98.84