char = M;code = 77
char = u;code = 117
char = l;code = 108
char = t;code = 116
char = i;code = 105
char = e;code = 101
char = l;code = 108
char = e;code = 101
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = s;code = 115
char = p;code = 112
char = e;code = 101
char = c;code = 99
char = i;code = 105
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = a;code = 97
char = l;code = 108
char = y;code = 121
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = o;code = 111
char = r;code = 114
char = g;code = 103
char = a;code = 97
char = n;code = 110
char = o;code = 111
char = m;code = 109
char = e;code = 101
char = t;code = 116
char = a;code = 97
char = l;code = 108
char = l;code = 108
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = m;code = 109
char = p;code = 112
char = o;code = 111
char = u;code = 117
char = n;code = 110
char = d;code = 100
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
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 = l;code = 108
char = e;code = 101
char = a;code = 97
char = d;code = 100
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = n;code = 110
char = a;code = 97
char = t;code = 116
char = u;code = 117
char = r;code = 114
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = s;code = 115
char = a;code = 97
char = m;code = 109
char = p;code = 112
char = l;code = 108
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = h;code = 104
char = e;code = 101
char = a;code = 97
char = d;code = 100
char = s;code = 115
char = p;code = 112
char = a;code = 97
char = c;code = 99
char = e;code = 101
char = -;code = 45
char = s;code = 115
char = o;code = 111
char = l;code = 108
char = i;code = 105
char = d;code = 100
char = ;code = 32
char = p;code = 112
char = h;code = 104
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = c;code = 99
char = r;code = 114
char = o;code = 111
char = e;code = 101
char = x;code = 120
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = l;code = 108
char = l;code = 108
char = o;code = 111
char = w;code = 119
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = g;code = 103
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = c;code = 99
char = h;code = 104
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = a;code = 97
char = t;code = 116
char = o;code = 111
char = g;code = 103
char = r;code = 114
char = a;code = 97
char = p;code = 112
char = h;code = 104
char = y;code = 121
char = -;code = 45
char = m;code = 109
char = a;code = 97
char = s;code = 115
char = s;code = 115
char = ;code = 32
char = s;code = 115
char = p;code = 112
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
result sql = Multielemental speciation analysis of organometallic compounds of mercury, lead and tin in natural water samples by headspace-solid phase microextraction followed by gas chromatography-mass spectrometry.
Multielemental speciation analysis of organometallic compounds of mercury, lead and tin in natural water samples by headspace-solid phase microextraction followed by gas chromatography-mass spectrometry.
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = l;code = 108
char = o;code = 111
char = p;code = 112
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = s;code = 115
char = i;code = 105
char = m;code = 109
char = p;code = 112
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = r;code = 114
char = a;code = 97
char = p;code = 112
char = i;code = 105
char = d;code = 100
char = ;code = 32
char = m;code = 109
char = u;code = 117
char = l;code = 108
char = t;code = 116
char = i;code = 105
char = e;code = 101
char = l;code = 108
char = e;code = 101
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = s;code = 115
char = p;code = 112
char = e;code = 101
char = c;code = 99
char = i;code = 105
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = t;code = 116
char = h;code = 104
char = o;code = 111
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = s;code = 115
char = c;code = 99
char = r;code = 114
char = i;code = 105
char = b;code = 98
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = u;code = 117
char = l;code = 108
char = t;code = 116
char = i;code = 105
char = m;code = 109
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = g;code = 103
char = o;code = 111
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = s;code = 115
char = i;code = 105
char = m;code = 109
char = u;code = 117
char = l;code = 108
char = t;code = 116
char = a;code = 97
char = n;code = 110
char = e;code = 101
char = o;code = 111
char = u;code = 117
char = s;code = 115
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = v;code = 118
char = a;code = 97
char = r;code = 114
char = i;code = 105
char = o;code = 111
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = r;code = 114
char = g;code = 103
char = a;code = 97
char = n;code = 110
char = o;code = 111
char = m;code = 109
char = e;code = 101
char = t;code = 116
char = a;code = 97
char = l;code = 108
char = l;code = 108
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = m;code = 109
char = p;code = 112
char = o;code = 111
char = u;code = 117
char = n;code = 110
char = d;code = 100
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
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 = l;code = 108
char = e;code = 101
char = a;code = 97
char = d;code = 100
char = ;code = 32
char = a;code = 97
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char = d;code = 100
char = ;code = 32
char = t;code = 116
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = (;code = 40
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 = 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
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char = h;code = 104
char = y;code = 121
char = l;code = 108
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 = t;code = 116
char = r;code = 114
char = i;code = 105
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 = l;code = 108
char = e;code = 101
char = a;code = 97
char = d;code = 100
char = ,;code = 44
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char = r;code = 114
char = i;code = 105
char = e;code = 101
char = t;code = 116
char = h;code = 104
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char = l;code = 108
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char = d;code = 100
char = ,;code = 44
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char = m;code = 109
char = o;code = 111
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char = o;code = 111
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char = u;code = 117
char = t;code = 116
char = y;code = 121
char = l;code = 108
char = -;code = 45
char = ,;code = 44
char = ;code = 32
char = d;code = 100
char = i;code = 105
char = b;code = 98
char = u;code = 117
char = t;code = 116
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char = l;code = 108
char = -;code = 45
char = ;code = 32
char = a;code = 97
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char = d;code = 100
char = ;code = 32
char = t;code = 116
char = r;code = 114
char = i;code = 105
char = b;code = 98
char = u;code = 117
char = t;code = 116
char = y;code = 121
char = l;code = 108
char = t;code = 116
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char = n;code = 110
char = );code = 41
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = n;code = 110
char = a;code = 97
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char = u;code = 117
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char = a;code = 97
char = l;code = 108
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = s;code = 115
char = a;code = 97
char = m;code = 109
char = p;code = 112
char = l;code = 108
char = e;code = 101
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char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = a;code = 97
char = l;code = 108
char = y;code = 121
char = t;code = 116
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = t;code = 116
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char = o;code = 111
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char = ;code = 32
char = c;code = 99
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char = n;code = 110
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = e;code = 101
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char = h;code = 104
char = y;code = 121
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = N;code = 78
char = a;code = 97
char = B;code = 66
char = E;code = 69
char = t;code = 116
char = 4;code = 52
char = ,;code = 44
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char = s;code = 115
char = i;code = 105
char = m;code = 109
char = u;code = 117
char = l;code = 108
char = t;code = 116
char = a;code = 97
char = n;code = 110
char = e;code = 101
char = o;code = 111
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = h;code = 104
char = e;code = 101
char = a;code = 97
char = d;code = 100
char = s;code = 115
char = p;code = 112
char = a;code = 97
char = c;code = 99
char = e;code = 101
char = -;code = 45
char = s;code = 115
char = o;code = 111
char = l;code = 108
char = i;code = 105
char = d;code = 100
char = ;code = 32
char = p;code = 112
char = h;code = 104
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = c;code = 99
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char = i;code = 105
char = o;code = 111
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char = ;code = 32
char = (;code = 40
char = H;code = 72
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char = S;code = 83
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char = M;code = 77
char = E;code = 69
char = );code = 41
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char = o;code = 111
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char = ;code = 32
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char = a;code = 97
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char = ;code = 32
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char = ;code = 32
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char = m;code = 109
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char = p;code = 112
char = h;code = 104
char = i;code = 105
char = c;code = 99
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char = s;code = 115
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char = s;code = 115
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char = c;code = 99
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char = G;code = 71
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char = M;code = 77
char = S;code = 83
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char = ;code = 32
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char = ;code = 32
char = A;code = 65
char = f;code = 102
char = t;code = 116
char = e;code = 101
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char = z;code = 122
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char = e;code = 101
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char = ,;code = 44
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char = M;code = 77
char = E;code = 69
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char = ;code = 32
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char = i;code = 105
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char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
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char = l;code = 108
char = l;code = 108
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char = i;code = 105
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char = ;code = 32
char = m;code = 109
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char = n;code = 110
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result sql = The development of a simple and rapid multielemental speciation method is described with the ultimate goal to simultaneously determine various organometallic compounds of mercury, lead and tin (inorganic mercury, methylmercury, trimethyllead, triethyllead, monobutyl-, dibutyl- and tributyltin) in natural water samples. The analytical method consists on the ethylation with NaBEt4, simultaneous headspace-solid phase microextraction (HS-SPME) of the derivatives and final gas chromatographic-mass spectrometric (GC-MS) analysis. After optimization of important process parameters, like SPME fiber coating, extraction time and extraction temperature, the analytical characteristics were evaluated. Detection limits in the low ng l(-1) level, linearity over three orders of magnitude and repeatability in the range of 3-20% were achieved for all compounds under study. The accuracy of the method in terms of average percentage recovery of the compounds in spiked river water and seawater samples was better than 90%. Finally, application of the proposed method to real natural aqueous samples enabled the simultaneous determination of all the compounds under study in seawater samples obtained from the marina area of Gijón (Asturias, Spain).

Publication: J Chromatogr A 2004 Apr 23 ;1034(1-2)::191-7.
Publication Date: 2004 Apr 23
Study Author(s): Centineo, Giuseppe;González, Elisa Blanco;Sanz-Medel, Alfredo;
Institution: Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Julián Clavería 8, 33006 Oviedo, Spain.
Shortcut link to this study:
The development of a simple and rapid multielemental speciation method is described with the ultimate goal to simultaneously determine various organometallic compounds of mercury, lead and tin (inorganic mercury, methylmercury, trimethyllead, triethyllead, monobutyl-, dibutyl- and tributyltin) in natural water samples. The analytical method consists on the ethylation with NaBEt4, simultaneous headspace-solid phase microextraction (HS-SPME) of the derivatives and final gas chromatographic-mass spectrometric (GC-MS) analysis. After optimization of important process parameters, like SPME fiber coating, extraction time and extraction temperature, the analytical characteristics were evaluated. Detection limits in the low ng l(-1) level, linearity over three orders of magnitude and repeatability in the range of 3-20% were achieved for all compounds under study. The accuracy of the method in terms of average percentage recovery of the compounds in spiked river water and seawater samples was better than 90%. Finally, application of the proposed method to real natural aqueous samples enabled the simultaneous determination of all the compounds under study in seawater samples obtained from the marina area of Gijón (Asturias, Spain).
PMID: 15116930

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