char = T;code = 84
char = h;code = 104
char = o;code = 111
char = r;code = 114
char = o;code = 111
char = u;code = 117
char = g;code = 103
char = h;code = 104
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = m;code = 109
char = o;code = 111
char = v;code = 118
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = o;code = 111
char = r;code = 114
char = g;code = 103
char = a;code = 97
char = n;code = 110
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = o;code = 111
char = r;code = 114
char = g;code = 103
char = a;code = 97
char = n;code = 110
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = r;code = 114
char = c;code = 99
char = u;code = 117
char = r;code = 114
char = y;code = 121
char = ;code = 32
char = f;code = 102
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = ;code = 32
char = a;code = 97
char = q;code = 113
char = u;code = 117
char = e;code = 101
char = o;code = 111
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = s;code = 115
char = o;code = 111
char = l;code = 108
char = u;code = 117
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = a;code = 97
char = d;code = 100
char = s;code = 115
char = o;code = 111
char = r;code = 114
char = p;code = 112
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = L;code = 76
char = e;code = 101
char = m;code = 109
char = n;code = 110
char = a;code = 97
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = p;code = 112
char = o;code = 111
char = w;code = 119
char = d;code = 100
char = e;code = 101
char = r;code = 114
char = .;code = 46
result sql = Thorough removal of inorganic and organic mercury from aqueous solutions by adsorption on Lemna minor powder.
Thorough removal of inorganic and organic mercury from aqueous solutions by adsorption on Lemna minor powder.
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = d;code = 100
char = s;code = 115
char = o;code = 111
char = r;code = 114
char = p;code = 112
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = b;code = 98
char = i;code = 105
char = l;code = 108
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = k;code = 107
char = w;code = 119
char = e;code = 101
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = (;code = 40
char = L;code = 76
char = e;code = 101
char = m;code = 109
char = n;code = 110
char = a;code = 97
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = o;code = 111
char = r;code = 114
char = );code = 41
char = ;code = 32
char = p;code = 112
char = o;code = 111
char = w;code = 119
char = d;code = 100
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = m;code = 109
char = o;code = 111
char = v;code = 118
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = o;code = 111
char = r;code = 114
char = g;code = 103
char = a;code = 97
char = n;code = 110
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = o;code = 111
char = r;code = 114
char = g;code = 103
char = a;code = 97
char = n;code = 110
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = r;code = 114
char = c;code = 99
char = u;code = 117
char = r;code = 114
char = y;code = 121
char = ;code = 32
char = (;code = 40
char = m;code = 109
char = e;code = 101
char = t;code = 116
char = h;code = 104
char = y;code = 121
char = l;code = 108
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = e;code = 101
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char = h;code = 104
char = y;code = 121
char = l;code = 108
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = r;code = 114
char = c;code = 99
char = u;code = 117
char = r;code = 114
char = y;code = 121
char = );code = 41
char = ;code = 32
char = h;code = 104
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = u;code = 117
char = d;code = 100
char = i;code = 105
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = u;code = 117
char = s;code = 115
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = l;code = 108
char = d;code = 100
char = ;code = 32
char = v;code = 118
char = a;code = 97
char = p;code = 112
char = o;code = 111
char = u;code = 117
char = r;code = 114
char = ;code = 32
char = a;code = 97
char = t;code = 116
char = o;code = 111
char = m;code = 109
char = i;code = 105
char = c;code = 99
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char = a;code = 97
char = b;code = 98
char = s;code = 115
char = o;code = 111
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char = p;code = 112
char = t;code = 116
char = i;code = 105
char = o;code = 111
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char = ;code = 32
char = s;code = 115
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char = e;code = 101
char = c;code = 99
char = t;code = 116
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = e;code = 101
char = t;code = 116
char = r;code = 114
char = y;code = 121
char = .;code = 46
char = ;code = 32
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = T;code = 84
char = H;code = 72
char = E;code = 69
char = ;code = 32
char = O;code = 79
char = P;code = 80
char = T;code = 84
char = I;code = 73
char = M;code = 77
char = A;code = 65
char = L;code = 76
char = ;code = 32
char = A;code = 65
char = D;code = 68
char = S;code = 83
char = O;code = 79
char = R;code = 82
char = P;code = 80
char = T;code = 84
char = I;code = 73
char = O;code = 79
char = N;code = 78
char = ;code = 32
char = C;code = 67
char = O;code = 79
char = N;code = 78
char = D;code = 68
char = I;code = 73
char = T;code = 84
char = I;code = 73
char = O;code = 79
char = N;code = 78
char = S;code = 83
char = ;code = 32
char = W;code = 87
char = E;code = 69
char = R;code = 82
char = E;code = 69
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = ;code = 32
char = (;code = 40
char = a;code = 97
char = );code = 41
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = H;code = 72
char = ;code = 32
char = v;code = 118
char = a;code = 97
char = l;code = 108
char = u;code = 117
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = o;code = 111
char = l;code = 108
char = u;code = 117
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = 7;code = 55
char = .;code = 46
char = 0;code = 48
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = i;code = 105
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char = o;code = 111
char = r;code = 114
char = g;code = 103
char = a;code = 97
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char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
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char = d;code = 100
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char = e;code = 101
char = t;code = 116
char = h;code = 104
char = y;code = 121
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char = ;code = 32
char = m;code = 109
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char = r;code = 114
char = c;code = 99
char = u;code = 117
char = r;code = 114
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char = ,;code = 44
char = ;code = 32
char = 9;code = 57
char = .;code = 46
char = 0;code = 48
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = t;code = 116
char = h;code = 104
char = y;code = 121
char = l;code = 108
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = r;code = 114
char = c;code = 99
char = u;code = 117
char = r;code = 114
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = (;code = 40
char = b;code = 98
char = );code = 41
char = ;code = 32
char = e;code = 101
char = q;code = 113
char = u;code = 117
char = i;code = 105
char = l;code = 108
char = i;code = 105
char = b;code = 98
char = r;code = 114
char = i;code = 105
char = u;code = 117
char = m;code = 109
char = ;code = 32
char = a;code = 97
char = d;code = 100
char = s;code = 115
char = o;code = 111
char = r;code = 114
char = p;code = 112
char = t;code = 116
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char = o;code = 111
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char = ;code = 32
char = t;code = 116
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char = m;code = 109
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char = ;code = 32
char = 1;code = 49
char = 0;code = 48
char = ,;code = 44
char = ;code = 32
char = 2;code = 50
char = 0;code = 48
char = ,;code = 44
char = ;code = 32
char = a;code = 97
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char = d;code = 100
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char = 4;code = 52
char = 0;code = 48
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char = m;code = 109
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char = n;code = 110
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = i;code = 105
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char = o;code = 111
char = r;code = 114
char = g;code = 103
char = a;code = 97
char = n;code = 110
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = r;code = 114
char = c;code = 99
char = u;code = 117
char = r;code = 114
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = m;code = 109
char = e;code = 101
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char = y;code = 121
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char = ;code = 32
char = m;code = 109
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char = r;code = 114
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char = ;code = 32
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char = e;code = 101
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char = y;code = 121
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char = ;code = 32
char = A;code = 65
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char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
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char = o;code = 111
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char = p;code = 112
char = t;code = 116
char = i;code = 105
char = o;code = 111
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char = ;code = 32
char = b;code = 98
char = y;code = 121
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char = L;code = 76
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char = m;code = 109
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char = r;code = 114
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char = a;code = 97
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char = 1;code = 49
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result sql = The adsorption ability of duckweed (Lemna minor) powders for removing inorganic and organic mercury (methyl and ethyl mercury) has been studied using cold vapour atomic absorption spectrometry. THE OPTIMAL ADSORPTION CONDITIONS WERE: (a) the pH value of the solution 7.0 for inorganic and ethyl mercury, 9.0 for methyl mercury, and (b) equilibrium adsorption time 10, 20, and 40 min for inorganic mercury, methyl mercury, and ethyl mercury, respectively. After adsorption by L. minor powder for 40 min, when the initial concentrations of inorganic and organic mercury were under 12.0 μg L(-1) and 50.0 μg L(-1), respectively, the residual concentrations of mercury could meet the criterion of drinking water (1.0 μg L(-1)) and the permitted discharge limit of wastewater (10.0 μg L(-1)) set by China and USEPA, respectively. Thorough removal of both inorganic and organic mercury from aqueous solutions was reported for the first time. The significant adsorption sites were C-O-P and phosphate groups by the surface electrostatic interactions with aqueous inorganic and organic mercury cations, and then the selective adsorption was resulted from the strong chelating interaction between amine groups and mercury on the surface of L. minor cells.

Publication: J. Hazard. Mater. 2011 Feb 15 ;186(1)::423-9. :doi: 10.1016/j.jhazmat.2010.11.009.
Publication Date: 2011 Feb 15
Study Author(s): Li, Shun-Xing;Zheng, Feng-Ying;Yang, Huang;Ni, Jian-Cong;
Institution: Department of Chemistry, Zhangzhou Normal University, Zhangzhou, China. [email protected]
Shortcut link to this study:
The adsorption ability of duckweed (Lemna minor) powders for removing inorganic and organic mercury (methyl and ethyl mercury) has been studied using cold vapour atomic absorption spectrometry. THE OPTIMAL ADSORPTION CONDITIONS WERE: (a) the pH value of the solution 7.0 for inorganic and ethyl mercury, 9.0 for methyl mercury, and (b) equilibrium adsorption time 10, 20, and 40 min for inorganic mercury, methyl mercury, and ethyl mercury, respectively. After adsorption by L. minor powder for 40 min, when the initial concentrations of inorganic and organic mercury were under 12.0 μg L(-1) and 50.0 μg L(-1), respectively, the residual concentrations of mercury could meet the criterion of drinking water (1.0 μg L(-1)) and the permitted discharge limit of wastewater (10.0 μg L(-1)) set by China and USEPA, respectively. Thorough removal of both inorganic and organic mercury from aqueous solutions was reported for the first time. The significant adsorption sites were C-O-P and phosphate groups by the surface electrostatic interactions with aqueous inorganic and organic mercury cations, and then the selective adsorption was resulted from the strong chelating interaction between amine groups and mercury on the surface of L. minor cells.
PMID: 21134716

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