|
|
char = D;code = 68
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 = 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 = d;code = 100
char = ;code = 32
char = l;code = 108
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = l;code = 108
char = s;code = 115
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 = b;code = 98
char = i;code = 105
char = o;code = 111
char = c;code = 99
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = r;code = 114
char = t;code = 116
char = h;code = 104
char = o;code = 111
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char = p;code = 112
char = h;code = 104
char = e;code = 101
char = n;code = 110
char = y;code = 121
char = l;code = 108
char = p;code = 112
char = h;code = 104
char = e;code = 101
char = n;code = 110
char = o;code = 111
char = l;code = 108
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = c;code = 99
char = a;code = 97
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char = ;code = 32
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char = e;code = 101
char = e;code = 101
char = r;code = 114
char = s;code = 115
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char = f;code = 102
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = ;code = 32
char = d;code = 100
char = i;code = 105
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = u;code = 117
char = n;code = 110
char = t;code = 116
char = r;code = 114
char = i;code = 105
char = e;code = 101
char = s;code = 115
char = .;code = 46
result sql = Determination and levels of the biocide ortho-phenylphenol in canned beers from different countries.
Determination and levels of the biocide ortho-phenylphenol in canned beers from different countries.char = A;code = 65
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 = w;code = 119
char = a;code = 97
char = s;code = 115
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 = e;code = 101
char = d;code = 100
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
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 = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
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 = b;code = 98
char = i;code = 105
char = o;code = 111
char = c;code = 99
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char = d;code = 100
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = r;code = 114
char = t;code = 116
char = h;code = 104
char = o;code = 111
char = -;code = 45
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char = h;code = 104
char = e;code = 101
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char = y;code = 121
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char = e;code = 101
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char = l;code = 108
char = ;code = 32
char = (;code = 40
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char = P;code = 80
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char = ;code = 32
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char = b;code = 98
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char = e;code = 101
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char = e;code = 101
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char = O;code = 79
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char = P;code = 80
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char = s;code = 115
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = e;code = 101
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char = n;code = 110
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = a;code = 97
char = r;code = 114
char = d;code = 100
char = .;code = 46
char = ;code = 32
char = A;code = 65
char = ;code = 32
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char = ;code = 32
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char = d;code = 100
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char = d;code = 100
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char = c;code = 99
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char = t;code = 116
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char = ;code = 32
char = d;code = 100
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char = t;code = 116
char = i;code = 105
char = o;code = 111
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char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
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char = e;code = 101
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char = t;code = 116
char = i;code = 105
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char = e;code = 101
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char = w;code = 119
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char = t;code = 116
char = h;code = 104
char = ;code = 32
char = p;code = 112
char = e;code = 101
char = n;code = 110
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char = a;code = 97
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char = u;code = 117
char = o;code = 111
char = r;code = 114
char = o;code = 111
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char = e;code = 101
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char = y;code = 121
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char = ;code = 32
char = b;code = 98
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char = i;code = 105
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char = ;code = 32
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char = w;code = 119
char = a;code = 97
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char = r;code = 114
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char = ;code = 32
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char = s;code = 115
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char = b;code = 98
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char = f;code = 102
char = f;code = 102
char = e;code = 101
char = r;code = 114
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 = p;code = 112
char = o;code = 111
char = t;code = 116
char = a;code = 97
char = s;code = 115
char = s;code = 115
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char = m;code = 109
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char = o;code = 111
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char = O;code = 79
char = P;code = 80
char = P;code = 80
char = .;code = 46
char = ;code = 32
char = I;code = 73
char = n;code = 110
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char = 4;code = 52
char = 0;code = 48
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char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
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char = e;code = 101
char = m;code = 109
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char = ;code = 32
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char = h;code = 104
char = e;code = 101
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char = e;code = 101
char = t;code = 116
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char = p;code = 112
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char = ;code = 32
char = p;code = 112
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = e;code = 101
char = n;code = 110
char = t;code = 116
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char = a;code = 97
char = t;code = 116
char = ;code = 32
char = c;code = 99
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char = n;code = 110
char = c;code = 99
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = r;code = 114
char = a;code = 97
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char = o;code = 111
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char = .;code = 46
char = ;code = 32
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char = i;code = 105
char = n;code = 110
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char = e;code = 101
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char = w;code = 119
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char = t;code = 116
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char = ;code = 32
char = r;code = 114
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char = p;code = 112
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char = s;code = 115
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char = f;code = 102
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char = ;code = 32
char = t;code = 116
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char = i;code = 105
char = s;code = 115
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char = c;code = 99
char = o;code = 111
char = n;code = 110
char = t;code = 116
char = a;code = 97
char = m;code = 109
char = i;code = 105
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char = t;code = 116
char = i;code = 105
char = o;code = 111
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result sql = A method was developed for the determination of the biocide ortho-phenylphenol (biphenyl-2-ol; OPP) in beer, using deuterated OPP as an internal standard. A new liquid-liquid extraction procedure, employing acetonitrile, diethyl ether, and n-pentane, afforded rapid phase separation. The evaporated extract was derivatized with pentafluorobenzyl bromide in a water-acetonitrile mixture that was buffered with potassium carbonate, followed by extraction of the derivative into cyclohexane and analysis by gas chromatography-mass spectrometry in electron ionization mode. The method enables the detection of OPP in 50 mL of beer at concentrations as low as 0.1 microg/L and provides a linear range of quantification of 0.5-40 microg/L. Samples from 61 beers canned over the past 12 years and sold in 27 countries were analyzed for OPP. In 40 of them, the target compound was present at concentrations of 1.2-40 microg/L. Our investigations indicate that the ends of the cans, which contain sealing material presumably treated with OPP, are responsible for this contamination.
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char = t;code = 116
char = e;code = 101
char = r;code = 114
char = m;code = 109
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char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
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char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = l;code = 108
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = l;code = 108
char = s;code = 115
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
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char = b;code = 98
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char = o;code = 111
char = c;code = 99
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = r;code = 114
char = t;code = 116
char = h;code = 104
char = o;code = 111
char = -;code = 45
char = p;code = 112
char = h;code = 104
char = e;code = 101
char = n;code = 110
char = y;code = 121
char = l;code = 108
char = p;code = 112
char = h;code = 104
char = e;code = 101
char = n;code = 110
char = o;code = 111
char = l;code = 108
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char = n;code = 110
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char = c;code = 99
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char = d;code = 100
char = i;code = 105
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = r;code = 114
char = e;code = 101
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char = ;code = 32
char = c;code = 99
char = o;code = 111
char = u;code = 117
char = n;code = 110
char = t;code = 116
char = r;code = 114
char = i;code = 105
char = e;code = 101
char = s;code = 115
char = .;code = 46
result sql = Determination and levels of the biocide ortho-phenylphenol in canned beers from different countries.
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char = e;code = 101
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result sql = A method was developed for the determination of the biocide ortho-phenylphenol (biphenyl-2-ol; OPP) in beer, using deuterated OPP as an internal standard. A new liquid-liquid extraction procedure, employing acetonitrile, diethyl ether, and n-pentane, afforded rapid phase separation. The evaporated extract was derivatized with pentafluorobenzyl bromide in a water-acetonitrile mixture that was buffered with potassium carbonate, followed by extraction of the derivative into cyclohexane and analysis by gas chromatography-mass spectrometry in electron ionization mode. The method enables the detection of OPP in 50 mL of beer at concentrations as low as 0.1 microg/L and provides a linear range of quantification of 0.5-40 microg/L. Samples from 61 beers canned over the past 12 years and sold in 27 countries were analyzed for OPP. In 40 of them, the target compound was present at concentrations of 1.2-40 microg/L. Our investigations indicate that the ends of the cans, which contain sealing material presumably treated with OPP, are responsible for this contamination.
Publication: J. Agric. Food Chem. 2006 Aug 9 ;54(16)::5731-5.
Publication Date: 2006 Aug 9
Study Author(s): Coelhan, Mehmet;Bromig, Karl-Heinz;Glas, Karl;Roberts, A Lynn;
Institution: Research Center for Brewing and Food Quality, Technical University of Munich, Freising-Weihenstephan, Germany. [email protected]
Shortcut link to this study:
Publication Date: 2006 Aug 9
Study Author(s): Coelhan, Mehmet;Bromig, Karl-Heinz;Glas, Karl;Roberts, A Lynn;
Institution: Research Center for Brewing and Food Quality, Technical University of Munich, Freising-Weihenstephan, Germany. [email protected]
Shortcut link to this study:
A method was developed for the determination of the biocide ortho-phenylphenol (biphenyl-2-ol; OPP) in beer, using deuterated OPP as an internal standard. A new liquid-liquid extraction procedure, employing acetonitrile, diethyl ether, and n-pentane, afforded rapid phase separation. The evaporated extract was derivatized with pentafluorobenzyl bromide in a water-acetonitrile mixture that was buffered with potassium carbonate, followed by extraction of the derivative into cyclohexane and analysis by gas chromatography-mass spectrometry in electron ionization mode. The method enables the detection of OPP in 50 mL of beer at concentrations as low as 0.1 microg/L and provides a linear range of quantification of 0.5-40 microg/L. Samples from 61 beers canned over the past 12 years and sold in 27 countries were analyzed for OPP. In 40 of them, the target compound was present at concentrations of 1.2-40 microg/L. Our investigations indicate that the ends of the cans, which contain sealing material presumably treated with OPP, are responsible for this contamination.
PMID: 16881670
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