|
|
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 = o;code = 111
char = f;code = 102
char = ;code = 32
char = L;code = 76
char = -;code = 45
char = a;code = 97
char = s;code = 115
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = b;code = 98
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = i;code = 105
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = h;code = 104
char = u;code = 117
char = m;code = 109
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = r;code = 114
char = u;code = 117
char = m;code = 109
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = c;code = 99
char = h;code = 104
char = e;code = 101
char = m;code = 109
char = i;code = 105
char = l;code = 108
char = u;code = 117
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = s;code = 115
char = c;code = 99
char = e;code = 101
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = ;code = 32
char = b;code = 98
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = h;code = 104
char = y;code = 121
char = d;code = 100
char = r;code = 114
char = o;code = 111
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = p;code = 112
char = e;code = 101
char = r;code = 114
char = o;code = 111
char = x;code = 120
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = -;code = 45
char = s;code = 115
char = o;code = 111
char = d;code = 100
char = i;code = 105
char = u;code = 117
char = m;code = 109
char = ;code = 32
char = h;code = 104
char = y;code = 121
char = d;code = 100
char = r;code = 114
char = o;code = 111
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = r;code = 114
char = b;code = 98
char = o;code = 111
char = n;code = 110
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = -;code = 45
char = C;code = 67
char = d;code = 100
char = S;code = 83
char = e;code = 101
char = /;code = 47
char = C;code = 67
char = d;code = 100
char = S;code = 83
char = ;code = 32
char = q;code = 113
char = u;code = 117
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = u;code = 117
char = m;code = 109
char = ;code = 32
char = d;code = 100
char = o;code = 111
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = s;code = 115
char = y;code = 121
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = m;code = 109
char = .;code = 46
result sql = Determination of L-ascorbic acid in human serum by chemiluminescence based on hydrogen peroxide-sodium hydrogen carbonate-CdSe/CdS quantum dots system.
Determination of L-ascorbic acid in human serum by chemiluminescence based on hydrogen peroxide-sodium hydrogen carbonate-CdSe/CdS quantum dots system.char = I;code = 73
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
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
char = ;code = 32
char = w;code = 119
char = o;code = 111
char = r;code = 114
char = k;code = 107
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = o;code = 111
char = n;code = 110
char = g;code = 103
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = c;code = 99
char = h;code = 104
char = e;code = 101
char = m;code = 109
char = i;code = 105
char = l;code = 108
char = u;code = 117
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = s;code = 115
char = c;code = 99
char = e;code = 101
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = C;code = 67
char = L;code = 76
char = );code = 41
char = ;code = 32
char = f;code = 102
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = x;code = 120
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = h;code = 104
char = y;code = 121
char = d;code = 100
char = r;code = 114
char = o;code = 111
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = p;code = 112
char = e;code = 101
char = r;code = 114
char = o;code = 111
char = x;code = 120
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = H;code = 72
char = (;code = 40
char = 2;code = 50
char = );code = 41
char = O;code = 79
char = (;code = 40
char = 2;code = 50
char = );code = 41
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = h;code = 104
char = y;code = 121
char = d;code = 100
char = r;code = 114
char = o;code = 111
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = r;code = 114
char = b;code = 98
char = o;code = 111
char = n;code = 110
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = H;code = 72
char = C;code = 67
char = O;code = 79
char = (;code = 40
char = 3;code = 51
char = );code = 41
char = (;code = 40
char = -;code = 45
char = );code = 41
char = );code = 41
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = C;code = 67
char = d;code = 100
char = S;code = 83
char = e;code = 101
char = /;code = 47
char = C;code = 67
char = d;code = 100
char = S;code = 83
char = ;code = 32
char = q;code = 113
char = u;code = 117
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = u;code = 117
char = m;code = 109
char = ;code = 32
char = d;code = 100
char = o;code = 111
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = (;code = 40
char = Q;code = 81
char = D;code = 68
char = s;code = 115
char = );code = 41
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = b;code = 98
char = s;code = 115
char = e;code = 101
char = r;code = 114
char = v;code = 118
char = e;code = 101
char = d;code = 100
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 = d;code = 100
char = d;code = 100
char = i;code = 105
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 = r;code = 114
char = a;code = 97
char = c;code = 99
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = m;code = 109
char = o;code = 111
char = u;code = 117
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = L;code = 76
char = -;code = 45
char = a;code = 97
char = s;code = 115
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = b;code = 98
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = i;code = 105
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = C;code = 67
char = L;code = 76
char = ;code = 32
char = s;code = 115
char = y;code = 121
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = m;code = 109
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = u;code = 117
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
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char = i;code = 105
char = g;code = 103
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char = i;code = 105
char = f;code = 102
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = q;code = 113
char = u;code = 117
char = e;code = 101
char = n;code = 110
char = c;code = 99
char = h;code = 104
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = l;code = 108
char = u;code = 117
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = s;code = 115
char = c;code = 99
char = e;code = 101
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char = c;code = 99
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = e;code = 101
char = n;code = 110
char = s;code = 115
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = .;code = 46
char = ;code = 32
char = B;code = 66
char = a;code = 97
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char = e;code = 101
char = d;code = 100
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = p;code = 112
char = h;code = 104
char = e;code = 101
char = n;code = 110
char = o;code = 111
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = o;code = 111
char = n;code = 110
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = f;code = 102
char = l;code = 108
char = o;code = 111
char = w;code = 119
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = j;code = 106
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = C;code = 67
char = L;code = 76
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 = s;code = 115
char = y;code = 121
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = m;code = 109
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 = l;code = 108
char = -;code = 45
char = a;code = 97
char = s;code = 115
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = b;code = 98
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = i;code = 105
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 = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = C;code = 67
char = L;code = 76
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = c;code = 99
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char = ;code = 32
char = c;code = 99
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char = i;code = 105
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char = i;code = 105
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char = ;code = 32
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char = u;code = 117
char = c;code = 99
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char = ;code = 32
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = x;code = 120
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char = g;code = 103
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char = i;code = 105
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char = o;code = 111
char = f;code = 102
char = ;code = 32
char = C;code = 67
char = L;code = 76
char = ;code = 32
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char = a;code = 97
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char = ,;code = 44
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char = H;code = 72
char = ,;code = 44
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char = ;code = 32
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char = f;code = 102
char = ;code = 32
char = q;code = 113
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char = a;code = 97
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char = m;code = 109
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char = z;code = 122
char = e;code = 101
char = d;code = 100
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = C;code = 67
char = L;code = 76
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = e;code = 101
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char = s;code = 115
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char = t;code = 116
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char = c;code = 99
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char = i;code = 105
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char = e;code = 101
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char = f;code = 102
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char = 1;code = 49
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char = 1;code = 49
char = 0;code = 48
char = (;code = 40
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char = m;code = 109
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char = L;code = 76
char = (;code = 40
char = -;code = 45
char = 1;code = 49
char = );code = 41
char = ;code = 32
char = (;code = 40
char = R;code = 82
char = (;code = 40
char = 2;code = 50
char = );code = 41
char = =;code = 61
char = 0;code = 48
char = .;code = 46
char = 9;code = 57
char = 9;code = 57
char = 1;code = 49
char = 6;code = 54
char = );code = 41
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = l;code = 108
char = i;code = 105
char = m;code = 109
char = i;code = 105
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char = o;code = 111
char = f;code = 102
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char = i;code = 105
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char = n;code = 110
char = ;code = 32
char = f;code = 102
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char = C;code = 67
char = d;code = 100
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char = i;code = 105
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char = C;code = 67
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char = h;code = 104
char = e;code = 101
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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 = a;code = 97
char = ;code = 32
char = o;code = 111
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char = ;code = 32
char = C;code = 67
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char = f;code = 102
char = l;code = 108
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char = e;code = 101
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char = c;code = 99
char = e;code = 101
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char = b;code = 98
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char = e;code = 101
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char = d;code = 100
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char = S;code = 83
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char = d;code = 100
char = e;code = 101
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char = i;code = 105
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char = d;code = 100
char = i;code = 105
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char = (;code = 40
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char = (;code = 40
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char = );code = 41
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char = c;code = 99
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char = r;code = 114
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char = e;code = 101
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char = e;code = 101
char = a;code = 97
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char = o;code = 111
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char = ;code = 32
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char = e;code = 101
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char = C;code = 67
char = L;code = 76
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char = s;code = 115
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result sql = In the present work, a strongly chemiluminescence (CL) from the mixing of hydrogen peroxide (H(2)O(2)), hydrogen carbonate (HCO(3)(-)) and CdSe/CdS quantum dots (QDs) was observed. The addition of trace amount of L-ascorbic acid into the CL system caused significant quenching luminescence intensity. Based on this phenomenon, a flow injection CL analysis system for the determination of l-ascorbic acid was developed. The CL reaction conditions, such as mixing orders and concentrations of CL reagents, flow rates, pH, and particle size of quantum dots have been optimized. The CL intensity and the concentration of L-ascorbic acid have a good linear relationship in the ranges of 1.0x10(-7)-1.0x10(-4)molL(-1) (R(2)=0.9916). The limit of detection for L-ascorbic acid is 6.7x10(-9)molL(-1) (S/N=3). This method has been successfully applied to determine L-ascorbic acid in human serum. The recoveries for the real samples were from 83% to 111% and the variance coefficient was <5.3% for intra- and inter-assay precision. A possible mechanism of the CL system was proposed according to results of the kinetic curves of CdSe/CdS QDs in NaHCO(3)-H(2)O(2) CL system, the spectra of CL, fluorescent, UV-visible and ESR. Superoxide ion radical (.-O(2)(-)) and hydroxide radical (OH) were generated between the reaction of NaHCO(3) and H(2)O(2), which were the key intermediates for the production of hole, electron-injected CdSe/CdS QDs and the CL emission.
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char = e;code = 101
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char = m;code = 109
char = i;code = 105
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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 = L;code = 76
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char = a;code = 97
char = s;code = 115
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = b;code = 98
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = i;code = 105
char = d;code = 100
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char = i;code = 105
char = n;code = 110
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char = h;code = 104
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char = m;code = 109
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char = u;code = 117
char = m;code = 109
char = ;code = 32
char = b;code = 98
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char = c;code = 99
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char = e;code = 101
char = m;code = 109
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char = u;code = 117
char = m;code = 109
char = i;code = 105
char = n;code = 110
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char = y;code = 121
char = d;code = 100
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char = o;code = 111
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char = e;code = 101
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char = p;code = 112
char = e;code = 101
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char = d;code = 100
char = e;code = 101
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char = d;code = 100
char = i;code = 105
char = u;code = 117
char = m;code = 109
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char = h;code = 104
char = y;code = 121
char = d;code = 100
char = r;code = 114
char = o;code = 111
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = r;code = 114
char = b;code = 98
char = o;code = 111
char = n;code = 110
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = -;code = 45
char = C;code = 67
char = d;code = 100
char = S;code = 83
char = e;code = 101
char = /;code = 47
char = C;code = 67
char = d;code = 100
char = S;code = 83
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char = q;code = 113
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char = a;code = 97
char = n;code = 110
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char = u;code = 117
char = m;code = 109
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char = d;code = 100
char = o;code = 111
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = s;code = 115
char = y;code = 121
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = m;code = 109
char = .;code = 46
result sql = Determination of L-ascorbic acid in human serum by chemiluminescence based on hydrogen peroxide-sodium hydrogen carbonate-CdSe/CdS quantum dots system.
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char = l;code = 108
char = u;code = 117
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = s;code = 115
char = c;code = 99
char = e;code = 101
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = C;code = 67
char = L;code = 76
char = );code = 41
char = ;code = 32
char = f;code = 102
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = x;code = 120
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = h;code = 104
char = y;code = 121
char = d;code = 100
char = r;code = 114
char = o;code = 111
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = p;code = 112
char = e;code = 101
char = r;code = 114
char = o;code = 111
char = x;code = 120
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = H;code = 72
char = (;code = 40
char = 2;code = 50
char = );code = 41
char = O;code = 79
char = (;code = 40
char = 2;code = 50
char = );code = 41
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = h;code = 104
char = y;code = 121
char = d;code = 100
char = r;code = 114
char = o;code = 111
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = r;code = 114
char = b;code = 98
char = o;code = 111
char = n;code = 110
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = H;code = 72
char = C;code = 67
char = O;code = 79
char = (;code = 40
char = 3;code = 51
char = );code = 41
char = (;code = 40
char = -;code = 45
char = );code = 41
char = );code = 41
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = C;code = 67
char = d;code = 100
char = S;code = 83
char = e;code = 101
char = /;code = 47
char = C;code = 67
char = d;code = 100
char = S;code = 83
char = ;code = 32
char = q;code = 113
char = u;code = 117
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = u;code = 117
char = m;code = 109
char = ;code = 32
char = d;code = 100
char = o;code = 111
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = (;code = 40
char = Q;code = 81
char = D;code = 68
char = s;code = 115
char = );code = 41
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = b;code = 98
char = s;code = 115
char = e;code = 101
char = r;code = 114
char = v;code = 118
char = e;code = 101
char = d;code = 100
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 = d;code = 100
char = d;code = 100
char = i;code = 105
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 = r;code = 114
char = a;code = 97
char = c;code = 99
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = m;code = 109
char = o;code = 111
char = u;code = 117
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = L;code = 76
char = -;code = 45
char = a;code = 97
char = s;code = 115
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = b;code = 98
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = i;code = 105
char = d;code = 100
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = C;code = 67
char = L;code = 76
char = ;code = 32
char = s;code = 115
char = y;code = 121
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = m;code = 109
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = u;code = 117
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = s;code = 115
char = i;code = 105
char = g;code = 103
char = n;code = 110
char = i;code = 105
char = f;code = 102
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = q;code = 113
char = u;code = 117
char = e;code = 101
char = n;code = 110
char = c;code = 99
char = h;code = 104
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = l;code = 108
char = u;code = 117
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = s;code = 115
char = c;code = 99
char = e;code = 101
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = e;code = 101
char = n;code = 110
char = s;code = 115
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = .;code = 46
char = ;code = 32
char = B;code = 66
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = p;code = 112
char = h;code = 104
char = e;code = 101
char = n;code = 110
char = o;code = 111
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = o;code = 111
char = n;code = 110
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = f;code = 102
char = l;code = 108
char = o;code = 111
char = w;code = 119
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = j;code = 106
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = C;code = 67
char = L;code = 76
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 = s;code = 115
char = y;code = 121
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = m;code = 109
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 = l;code = 108
char = -;code = 45
char = a;code = 97
char = s;code = 115
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = b;code = 98
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = i;code = 105
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 = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = C;code = 67
char = L;code = 76
char = ;code = 32
char = r;code = 114
char = e;code = 101
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 = c;code = 99
char = o;code = 111
char = n;code = 110
char = d;code = 100
char = i;code = 105
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = ,;code = 44
char = ;code = 32
char = s;code = 115
char = u;code = 117
char = c;code = 99
char = h;code = 104
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = x;code = 120
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = o;code = 111
char = r;code = 114
char = d;code = 100
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = c;code = 99
char = o;code = 111
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
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = C;code = 67
char = L;code = 76
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = s;code = 115
char = ,;code = 44
char = ;code = 32
char = f;code = 102
char = l;code = 108
char = o;code = 111
char = w;code = 119
char = ;code = 32
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = s;code = 115
char = ,;code = 44
char = ;code = 32
char = p;code = 112
char = H;code = 72
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = p;code = 112
char = a;code = 97
char = r;code = 114
char = t;code = 116
char = i;code = 105
char = c;code = 99
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = i;code = 105
char = z;code = 122
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = q;code = 113
char = u;code = 117
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = u;code = 117
char = m;code = 109
char = ;code = 32
char = d;code = 100
char = o;code = 111
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = h;code = 104
char = a;code = 97
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = o;code = 111
char = p;code = 112
char = t;code = 116
char = i;code = 105
char = m;code = 109
char = i;code = 105
char = z;code = 122
char = e;code = 101
char = d;code = 100
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = C;code = 67
char = L;code = 76
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = e;code = 101
char = n;code = 110
char = s;code = 115
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = o;code = 111
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
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 = L;code = 76
char = -;code = 45
char = a;code = 97
char = s;code = 115
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = b;code = 98
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = i;code = 105
char = d;code = 100
char = ;code = 32
char = h;code = 104
char = a;code = 97
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = g;code = 103
char = o;code = 111
char = o;code = 111
char = d;code = 100
char = ;code = 32
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = a;code = 97
char = r;code = 114
char = ;code = 32
char = r;code = 114
char = e;code = 101
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 = s;code = 115
char = h;code = 104
char = i;code = 105
char = p;code = 112
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = a;code = 97
char = n;code = 110
char = g;code = 103
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = 1;code = 49
char = .;code = 46
char = 0;code = 48
char = x;code = 120
char = 1;code = 49
char = 0;code = 48
char = (;code = 40
char = -;code = 45
char = 7;code = 55
char = );code = 41
char = -;code = 45
char = 1;code = 49
char = .;code = 46
char = 0;code = 48
char = x;code = 120
char = 1;code = 49
char = 0;code = 48
char = (;code = 40
char = -;code = 45
char = 4;code = 52
char = );code = 41
char = m;code = 109
char = o;code = 111
char = l;code = 108
char = L;code = 76
char = (;code = 40
char = -;code = 45
char = 1;code = 49
char = );code = 41
char = ;code = 32
char = (;code = 40
char = R;code = 82
char = (;code = 40
char = 2;code = 50
char = );code = 41
char = =;code = 61
char = 0;code = 48
char = .;code = 46
char = 9;code = 57
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char = 1;code = 49
char = 6;code = 54
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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 = l;code = 108
char = i;code = 105
char = m;code = 109
char = i;code = 105
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char = o;code = 111
char = f;code = 102
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char = e;code = 101
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char = e;code = 101
char = c;code = 99
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char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
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char = L;code = 76
char = -;code = 45
char = a;code = 97
char = s;code = 115
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = b;code = 98
char = i;code = 105
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char = a;code = 97
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char = i;code = 105
char = d;code = 100
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char = i;code = 105
char = s;code = 115
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char = 6;code = 54
char = .;code = 46
char = 7;code = 55
char = x;code = 120
char = 1;code = 49
char = 0;code = 48
char = (;code = 40
char = -;code = 45
char = 9;code = 57
char = );code = 41
char = m;code = 109
char = o;code = 111
char = l;code = 108
char = L;code = 76
char = (;code = 40
char = -;code = 45
char = 1;code = 49
char = );code = 41
char = ;code = 32
char = (;code = 40
char = S;code = 83
char = /;code = 47
char = N;code = 78
char = =;code = 61
char = 3;code = 51
char = );code = 41
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = i;code = 105
char = s;code = 115
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char = m;code = 109
char = e;code = 101
char = t;code = 116
char = h;code = 104
char = o;code = 111
char = d;code = 100
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char = a;code = 97
char = s;code = 115
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char = b;code = 98
char = e;code = 101
char = e;code = 101
char = n;code = 110
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char = s;code = 115
char = u;code = 117
char = c;code = 99
char = c;code = 99
char = e;code = 101
char = s;code = 115
char = s;code = 115
char = f;code = 102
char = u;code = 117
char = l;code = 108
char = l;code = 108
char = y;code = 121
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char = a;code = 97
char = p;code = 112
char = p;code = 112
char = l;code = 108
char = i;code = 105
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
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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 = L;code = 76
char = -;code = 45
char = a;code = 97
char = s;code = 115
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = b;code = 98
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = i;code = 105
char = d;code = 100
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char = i;code = 105
char = n;code = 110
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char = h;code = 104
char = u;code = 117
char = m;code = 109
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = r;code = 114
char = u;code = 117
char = m;code = 109
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = c;code = 99
char = o;code = 111
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = e;code = 101
char = s;code = 115
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 = r;code = 114
char = e;code = 101
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = s;code = 115
char = a;code = 97
char = m;code = 109
char = p;code = 112
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char = e;code = 101
char = s;code = 115
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = f;code = 102
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = ;code = 32
char = 8;code = 56
char = 3;code = 51
char = %;code = 37
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = 1;code = 49
char = 1;code = 49
char = 1;code = 49
char = %;code = 37
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = v;code = 118
char = a;code = 97
char = r;code = 114
char = i;code = 105
char = a;code = 97
char = n;code = 110
char = c;code = 99
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result sql = In the present work, a strongly chemiluminescence (CL) from the mixing of hydrogen peroxide (H(2)O(2)), hydrogen carbonate (HCO(3)(-)) and CdSe/CdS quantum dots (QDs) was observed. The addition of trace amount of L-ascorbic acid into the CL system caused significant quenching luminescence intensity. Based on this phenomenon, a flow injection CL analysis system for the determination of l-ascorbic acid was developed. The CL reaction conditions, such as mixing orders and concentrations of CL reagents, flow rates, pH, and particle size of quantum dots have been optimized. The CL intensity and the concentration of L-ascorbic acid have a good linear relationship in the ranges of 1.0x10(-7)-1.0x10(-4)molL(-1) (R(2)=0.9916). The limit of detection for L-ascorbic acid is 6.7x10(-9)molL(-1) (S/N=3). This method has been successfully applied to determine L-ascorbic acid in human serum. The recoveries for the real samples were from 83% to 111% and the variance coefficient was <5.3% for intra- and inter-assay precision. A possible mechanism of the CL system was proposed according to results of the kinetic curves of CdSe/CdS QDs in NaHCO(3)-H(2)O(2) CL system, the spectra of CL, fluorescent, UV-visible and ESR. Superoxide ion radical (.-O(2)(-)) and hydroxide radical (OH) were generated between the reaction of NaHCO(3) and H(2)O(2), which were the key intermediates for the production of hole, electron-injected CdSe/CdS QDs and the CL emission.
Publication: Talanta 2010 Jun 15 ;81(4-5)::1688-96. :doi: 10.1016/j.talanta.2010.03.024.
Publication Date: 2010 Jun 15
Study Author(s): Chen, Hui;Li, Ruibo;Lin, Ling;Guo, Guangsheng;Lin, Jin-Ming;
Institution: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, China.
Shortcut link to this study:
Publication Date: 2010 Jun 15
Study Author(s): Chen, Hui;Li, Ruibo;Lin, Ling;Guo, Guangsheng;Lin, Jin-Ming;
Institution: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, China.
Shortcut link to this study:
In the present work, a strongly chemiluminescence (CL) from the mixing of hydrogen peroxide (H(2)O(2)), hydrogen carbonate (HCO(3)(-)) and CdSe/CdS quantum dots (QDs) was observed. The addition of trace amount of L-ascorbic acid into the CL system caused significant quenching luminescence intensity. Based on this phenomenon, a flow injection CL analysis system for the determination of l-ascorbic acid was developed. The CL reaction conditions, such as mixing orders and concentrations of CL reagents, flow rates, pH, and particle size of quantum dots have been optimized. The CL intensity and the concentration of L-ascorbic acid have a good linear relationship in the ranges of 1.0x10(-7)-1.0x10(-4)molL(-1) (R(2)=0.9916). The limit of detection for L-ascorbic acid is 6.7x10(-9)molL(-1) (S/N=3). This method has been successfully applied to determine L-ascorbic acid in human serum. The recoveries for the real samples were from 83% to 111% and the variance coefficient was <5.3% for intra- and inter-assay precision. A possible mechanism of the CL system was proposed according to results of the kinetic curves of CdSe/CdS QDs in NaHCO(3)-H(2)O(2) CL system, the spectra of CL, fluorescent, UV-visible and ESR. Superoxide ion radical (.-O(2)(-)) and hydroxide radical (OH) were generated between the reaction of NaHCO(3) and H(2)O(2), which were the key intermediates for the production of hole, electron-injected CdSe/CdS QDs and the CL emission.
PMID: 20441959
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