Journal of Chemistry / 2016 / Article / Tab 3 / Research Article
Analysis of Some Trace Metals in Fish Species after Preconcentration with Congo Red on Amberlite XAD-7 Resin by Flame Atomic Absorption Spectrometry Table 3 Tolerance limit of foreign species (in binary mixtures) on sorption of metal ions (column parameter: 100 mL of solution; 10 μ g/L metal ions; 0.5 g resin).
Foreign species Tolerance ratio μ g/L)/metal ion (μ g/L) Cu(II) Ni(II) Fe(III) Zn(II) Cr(III) Cd(II) Pb(II) Na+ (NaCl) 2.46 × 106 3.51 × 106 1.84 × 106 1.99 × 106 1.67 × 106 1.77 × 106 1.68 × 106 K+ (KCl) 1.98 × 106 3.12 × 106 4.02 × 106 1.55 × 106 1.98 × 106 1.82 × 106 0.97 × 106 4 Cl)1.09 × 106 2.31 × 106 3.68 × 106 1.38 × 106 1.66 × 106 1.65 × 106 1.02 × 106 Cl− (NaCl) 2.98 × 106 3.98 × 106 4.77 × 106 1.79 × 106 1.51 × 106 7.19 × 106 1.75 × 106 2 SO4 )3.78 × 106 3.94 × 106 4.02 × 106 4.12 × 106 7.89 × 106 8.14 × 106 3.75 × 106 3 )3.9 × 106 3.47 × 106 3.88 × 106 4.17 × 106 8.13 × 106 1.5 × 106 4.12 × 106 3 PO4 )6.8 × 105 6.72 × 105 7.75 × 105 4.43 × 105 6.76 × 105 2.62 × 105 4.68 × 105 2 CO3 )2.47 × 106 2.43 × 106 2.83 × 106 1.39 × 106 7.41 × 106 1.35 × 106 2.12 × 106 Citrate (sodium citrate) 1.34 × 104 2.49 × 104 3.53 × 104 2.12 × 104 9.52 × 104 2.17 × 104 2.71 × 104 Tartrate (NaKtartrate) 1.98 × 103 6.99 × 103 8.81 × 103 3.17 × 103 6.41 × 103 3.65 × 103 6.23 × 103 Oxalate (Na2 C2 O4 ) 1.51 × 103 7.14 × 103 8.62 × 103 1.85 × 103 4.12 × 103 6.17 × 103 1.98 × 103 Fulvic acid 18 77 35 31 52 29 30 Humic acid 33 134 74 87 83 45 68 CH3 COO− (CH3 COONa) 2.17 × 105 7.23 × 105 8.12 × 105 3.43 × 105 2.78 × 105 1.47 × 105 3.12 × 105 Ca2+ (CaCl2 ) 4.53 × 105 6.98 × 105 4.22 × 105 4.52 × 105 6.23 × 105 2.13 × 105 3.98 × 105 Mg2+ (MgCl2 ) 4.02 × 105 7.75 × 105 6.23 × 105 4.98 × 105 5.14 × 105 1.35 × 105 5.17 × 105
