CH 2 CH CH 2 CH CH 2 CH CH 2 CH 2 COONa CH 2 N CH 2 COONa O Co 2+ O CO CH 2 CH N 2 CH 2 CO 9 Change in Ionic Form of IDA resin with h ph CH 2 NH + COOH COOH COOH COO - CH 2 NH + + CH 2 NH COO - COO - COO - CH 2 N COO - ph2.21 ph3.99 ph7.41 ph12.30 Selectivity S for Divalent e t CationsC Hg 2+ 1060 Fe 2+ 0.130 Cu 2+ 126 Mn 2+ 0.024 2+ UO 2 5.70 Ba 2+ 0.016 Ni 2+ 4.40 Ca 2+ 0.013 Pb 2+ 3.88 Sr 2+ 0.013 Zn 2+ 1.00 Mg 2+ 0.009 Co 2+ 0.615 Na + 0.0000001 Cd 2+ 0.390 Reference: Instruction Manual of Chelex 100 10 5
JAC0032 ug/l ug/l ug/l Al 61 2 58 56 Cd 1.0 0.02 1.0 1.0 Cu 10.5 0.2 10.3 9.4 Fe 57 2 143 52 Mn 5.4 0.1 5.5 5.1 Ni 10.2 0.3 13.1 10.3 Pb 9.9 0.2 10.7 9.8 Zn 11.3 0.4 10.8 11.5 Sample 500ml 15 Recovery of Metals in River Water obtained by Chelating Disk Method and Solvent Extraction Added (µg/l) Recovered (µg/l) Recovery (%) Element Chelating Disk Solvent Extr. Chelating Disk Solvent Extr. Al 500 481 5.0-96.2 1.0 - Cd 0.5 0.481 0.0094 0.459 0.010 96.3 1.9 91.7 1.9 Co 0.5 0.443 0.015 0.392 0.013 88.6 3.0 78.4 2.0 Cu 5 4.85 0.091 4.67 0.099 97.0 1.8 93.4 2.0 Fe 500 498 14 474 7.7 99.6 2.8 94.8 1.5 Mn 50 47.6 1.17-95.2 2.3 - Ni 5 4.87 0.049 4.38 0.15 97.4 1.0 87.8 3.1 Pb 10 9.68 0.33 9.98 0.27 96.8 3.3 99.8 2.7 Zn 10 9.46 0.17 8.62 0.36 94.6 1.7 86.2 3.6 Sample : 500ml, n=3 16 8
Recovery of Metals in Sewage Effluents by Chelating Disk Method Added ( g/l) Recovered ( g/l) Recovery (%) Element SEW#1 SEW#2 SEW#1 SEW#2 SEW#1 SEW#2 Al 500 50 436 19 48.5 2.6 87 3.8 97 5.1 Cd 2.5 0.5 2.57 0.055 0.53 0.027 102 2.2 106 5.4 Co 2.5 2.5 2.40 0.062 2.61 0.023 96 2.5 104 0.9 Cu 25 250 27.2 0.35 236 7.2 109 1.4 94 2.9 Fe 1000 50 1050 37 49.7 0.94 105 3.7 99 1.9 Mn 25 5 23.8 0.92 4.21 0.11 95 3.7 84 2.1 Ni 5 25 4.59 0.13 26.3 0.73 92 2.6 105 2.9 Pb 5 0.5 5.06 0.18 0.50 0.018 101 3.5 100 3.6 Zn 50 50 45.1 1.1 47.1 1.0 90 2.3 94 2.1 Sample : 500ml, n=3 17 *Spike Conc. 0.01mg/L, ph5.4 River Water Sea Water 500ml 1L 5L 10L 200ml 500ml 1L 2L 3L Al 103 96 94 94 Al 100 99 97 103 107 Cd 99 96 96 93 Cd 102 103 92 74 77 Co 93 89 91 86 Co 100 101 100 101 99 Cu 101 97 93 95 Cu 99 100 102 104 102 Fe 99 95 103 104 Fe 85 85 87 88 101 Mn 100 95 95 87 Mn 66 30 12 6 8 Ni 95 97 93 96 Ni 100 101 103 102 102 Pb 93 97 91 89 Pb 100 101 101 102 100 Zn 97 95 94 91 Zn 105 103 103 105 103 Recovery(%) Recovery(%) ph6.8 200ml 500ml 1L Mn 98 103 101 18 9
Ammonium Acetate Soln. (ph5.5, 50ml) 0 0.1M 0.5M 1.0M 2.0M Recovery (%) Al 83 86 105 103 103 Cd 84 91 98 95 92 Co 81 90 100 102 101 Cu 80 90 100 103 101 Fe 82 91 100 103 105 Mn 16 15 12 9 7 Ni 79 87 93 92 102 Pb 82 91 98 99 87 Zn 96 101 101 100 104 Matrix Conc. (mg/l) Ca 480 310 17 5.5 4.9 Mg 320 120 4.6 2.8 2.8 Sample: Simulated Sea Water, 1L, 0.01mg/L 19 22 6 No.146 2001 20 10
22 7 21 No.149 2002 ph La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Th U 2.1 2 2 2 2 3 2 3 2 2 2 2 1 2 2 92 95 3.1 99 99 98 100 101 100 101 101 99 102 98 97 95 102 96 99 3.9 100 100 99 100 100 100 100 100 99 101 98 96 95 101 96 99 5.0 99 99 98 100 99 100 100 98 97 100 97 95 94 100 96 98 5.6 99 99 97 99 99 99 99 98 96 99 96 94 93 99 93 96 6.1 99 98 97 99 99 99 98 97 95 98 96 94 93 99 91 96 6.9 100 101 99 101 100 100 100 99 98 101 98 96 95 101 83 99 7.8 102 102 101 103 103 103 103 102 102 104 100 100 98 106 73 105 9.1 103 101 97 98 97 96 97 94 93 95 91 89 86 94 88 91 22 11
U 263.553(99) U 367.007(71) U 385.958(67) Fe Fe U U U 41 42 21
43 n=5 10µ µ 0. µ µ 44 22
49 50 25
(Reference:K.-H. Lee, M. Oshima, S. Motomizu, Analyst, 2002, 127, 769-774) Analytical Results for Seawater Certified Reference Materials Adsorption Efficiency 51 ICP/OESC E 52 26
Chelator Disk Cartridge Al, Cd, Co, Cu, Fe, Mn, Ni, Pb, Zn Stand. Soln. 2ml Each Elements 1 g/ml Auto Injector ICP/OESS Auto Injector Al, Cd, Co, Fe, Mn, Pb, Zn : 3 ml Cu, Ni, : 4.5 ml 53 10 ICP/OES O 54 27
Chelator Disk Cartridge Cd, Co, Cu, Mn, Ni, Pb, Zn Stand. Soln. 5ml 10 ml ICP/OESS 55 Chelator Disk Cartridge Constant volume 10 ml ICP/OESE Cd, Co, Cu, Mn, Ni, Pb, Zn Stand. Soln. 5ml 56 28
Chelator Disk Cartridge Cd, Co, Cu, Mn, Ni, Pb, Zn Stand. Soln. 5ml 10 ml ICP/OESS 57 Ca ICP/MS M 58 29