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Table 1 Selectivity study of 20 mg SG-N-PhenacylPyrNTf 2 toward different metal ions

From: New solid phase extractor based on ionic liquid functionalized silica gel surface for selective separation and determination of lanthanum

Metal ion Concentration (mg L−1) q e(mg g–1) K d(mL g−1)
Co(II) 2.00 0.54 340.33
Fe(II) 2.00 0.17 93.36
Fe(III) 2.00 1.65 2410.32
La(III) 2.00 2.50 2.50 × 106
Ni(II) 2.00 0.55 354.62