char = A;code = 65
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 = s;code = 115
char = e;code = 101
char = n;code = 110
char = s;code = 115
char = i;code = 105
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = s;code = 115
char = a;code = 97
char = y;code = 121
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
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 = a;code = 97
char = t;code = 116
char = e;code = 101
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 = a;code = 97
char = ;code = 32
char = p;code = 112
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = d;code = 100
char = e;code = 101
char = r;code = 114
char = .;code = 46
result sql = A simple and sensitive assay for ascorbate using a plate reader.
A simple and sensitive assay for ascorbate using a plate reader.
char = W;code = 87
char = e;code = 101
char = ;code = 32
char = h;code = 104
char = a;code = 97
char = v;code = 118
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 = e;code = 101
char = d;code = 100
char = ;code = 32
char = a;code = 97
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 = 44
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = x;code = 120
char = p;code = 112
char = e;code = 101
char = n;code = 110
char = s;code = 115
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = l;code = 108
char = i;code = 105
char = a;code = 97
char = b;code = 98
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = s;code = 115
char = a;code = 97
char = y;code = 121
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 = a;code = 97
char = s;code = 115
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = b;code = 98
char = a;code = 97
char = t;code = 116
char = e;code = 101
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 = a;code = 97
char = ;code = 32
char = p;code = 112
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = d;code = 100
char = e;code = 101
char = r;code = 114
char = .;code = 46
char = ;code = 32
char = I;code = 73
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 = a;code = 97
char = s;code = 115
char = s;code = 115
char = a;code = 97
char = y;code = 121
char = ,;code = 44
char = ;code = 32
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 = s;code = 115
char = ;code = 32
char = o;code = 111
char = x;code = 120
char = i;code = 105
char = d;code = 100
char = i;code = 105
char = z;code = 122
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = h;code = 104
char = y;code = 121
char = d;code = 100
char = r;code = 114
char = o;code = 111
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 = u;code = 117
char = s;code = 115
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = T;code = 84
char = e;code = 101
char = m;code = 109
char = p;code = 112
char = o;code = 111
char = l;code = 108
char = ;code = 32
char = (;code = 40
char = 4;code = 52
char = -;code = 45
char = h;code = 104
char = y;code = 121
char = d;code = 100
char = r;code = 114
char = o;code = 111
char = x;code = 120
char = y;code = 121
char = -;code = 45
char = 2;code = 50
char = ,;code = 44
char = 2;code = 50
char = ,;code = 44
char = 6;code = 54
char = ,;code = 44
char = 6;code = 54
char = -;code = 45
char = t;code = 116
char = e;code = 101
char = t;code = 116
char = r;code = 114
char = a;code = 97
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 = p;code = 112
char = i;code = 105
char = p;code = 112
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = d;code = 100
char = i;code = 105
char = n;code = 110
char = y;code = 121
char = l;code = 108
char = o;code = 111
char = x;code = 120
char = y;code = 121
char = );code = 41
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 = n;code = 110
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = c;code = 99
char = t;code = 116
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 = 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 = e;code = 101
char = n;code = 110
char = e;code = 101
char = d;code = 100
char = i;code = 105
char = a;code = 97
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = m;code = 109
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 = d;code = 100
char = e;code = 101
char = n;code = 110
char = s;code = 115
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = t;code = 116
char = ,;code = 44
char = ;code = 32
char = 3;code = 51
char = -;code = 45
char = (;code = 40
char = d;code = 100
char = i;code = 105
char = h;code = 104
char = y;code = 121
char = d;code = 100
char = r;code = 114
char = o;code = 111
char = x;code = 120
char = y;code = 121
char = e;code = 101
char = t;code = 116
char = h;code = 104
char = y;code = 121
char = l;code = 108
char = );code = 41
char = f;code = 102
char = u;code = 117
char = r;code = 114
char = o;code = 111
char = [;code = 91
char = 3;code = 51
char = ,;code = 44
char = 4;code = 52
char = -;code = 45
char = b;code = 98
char = ];code = 93
char = q;code = 113
char = u;code = 117
char = i;code = 105
char = n;code = 110
char = o;code = 111
char = x;code = 120
char = a;code = 97
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = -;code = 45
char = 1;code = 49
char = -;code = 45
char = o;code = 111
char = n;code = 110
char = e;code = 101
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 = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = a;code = 97
char = p;code = 112
char = p;code = 112
char = e;code = 101
char = a;code = 97
char = r;code = 114
char = a;code = 97
char = n;code = 110
char = c;code = 99
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 = i;code = 105
char = s;code = 115
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = t;code = 116
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = m;code = 109
char = o;code = 111
char = n;code = 110
char = i;code = 105
char = t;code = 116
char = o;code = 111
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = o;code = 111
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = t;code = 116
char = i;code = 105
char = m;code = 109
char = e;code = 101
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 = f;code = 102
char = l;code = 108
char = u;code = 117
char = o;code = 111
char = r;code = 114
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 = 46
char = ;code = 32
char = W;code = 87
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = i;code = 105
char = s;code = 115
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 = 44
char = ;code = 32
char = i;code = 105
char = t;code = 116
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = p;code = 112
char = o;code = 111
char = s;code = 115
char = s;code = 115
char = i;code = 105
char = b;code = 98
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = a;code = 97
char = l;code = 108
char = y;code = 121
char = z;code = 122
char = e;code = 101
char = ;code = 32
char = 9;code = 57
char = 6;code = 54
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = l;code = 108
char = e;code = 101
char = s;code = 115
char = s;code = 115
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = 1;code = 49
char = 0;code = 48
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = p;code = 112
char = e;code = 101
char = r;code = 114
char = m;code = 109
char = i;code = 105
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = t;code = 116
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 = 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 = 2;code = 50
char = 0;code = 48
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 = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = f;code = 102
char = u;code = 117
char = l;code = 108
char = l;code = 108
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = t;code = 116
char = ;code = 32
char = o;code = 111
char = f;code = 102
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 = s;code = 115
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = l;code = 108
char = a;code = 97
char = n;code = 110
char = k;code = 107
char = s;code = 115
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = l;code = 108
char = l;code = 108
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = r;code = 114
char = i;code = 105
char = p;code = 112
char = l;code = 108
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = t;code = 116
char = e;code = 101
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 = s;code = 115
char = s;code = 115
char = a;code = 97
char = y;code = 121
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = r;code = 114
char = o;code = 111
char = b;code = 98
char = u;code = 117
char = s;code = 115
char = t;code = 116
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = v;code = 118
char = a;code = 97
char = r;code = 114
char = i;code = 105
char = e;code = 101
char = t;code = 116
char = y;code = 121
char = ;code = 32
char = o;code = 111
char = f;code = 102
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 = 44
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = c;code = 99
char = l;code = 108
char = u;code = 117
char = d;code = 100
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = o;code = 111
char = r;code = 114
char = a;code = 97
char = n;code = 110
char = g;code = 103
char = e;code = 101
char = ;code = 32
char = j;code = 106
char = u;code = 117
char = i;code = 105
char = c;code = 99
char = e;code = 101
char = ,;code = 44
char = ;code = 32
char = s;code = 115
char = w;code = 119
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = l;code = 108
char = a;code = 97
char = s;code = 115
char = m;code = 109
char = a;code = 97
char = ,;code = 44
char = ;code = 32
char = d;code = 100
char = o;code = 111
char = g;code = 103
char = ;code = 32
char = p;code = 112
char = l;code = 108
char = a;code = 97
char = s;code = 115
char = m;code = 109
char = a;code = 97
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = c;code = 99
char = u;code = 117
char = l;code = 108
char = t;code = 116
char = u;code = 117
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = s;code = 115
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = o;code = 111
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = m;code = 109
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = u;code = 117
char = s;code = 115
char = e;code = 101
char = f;code = 102
char = u;code = 117
char = l;code = 108
char = n;code = 110
char = e;code = 101
char = s;code = 115
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 = a;code = 97
char = s;code = 115
char = s;code = 115
char = a;code = 97
char = y;code = 121
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 = a;code = 97
char = p;code = 112
char = i;code = 105
char = d;code = 100
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 = e;code = 101
char = x;code = 120
char = p;code = 112
char = e;code = 101
char = r;code = 114
char = i;code = 105
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 = p;code = 112
char = a;code = 97
char = r;code = 114
char = a;code = 97
char = m;code = 109
char = e;code = 101
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = s;code = 115
char = ,;code = 44
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = v;code = 118
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = i;code = 105
char = g;code = 103
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = u;code = 117
char = p;code = 112
char = t;code = 116
char = a;code = 97
char = k;code = 107
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
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 = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = w;code = 119
char = o;code = 111
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 = a;code = 97
char = s;code = 115
char = c;code = 99
char = o;code = 111
char = r;code = 114
char = b;code = 98
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = v;code = 118
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = U;code = 85
char = 9;code = 57
char = 3;code = 51
char = 7;code = 55
char = ;code = 32
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = s;code = 115
char = .;code = 46
char = ;code = 32
char = W;code = 87
char = e;code = 101
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = u;code = 117
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = s;code = 115
char = i;code = 105
char = m;code = 109
char = i;code = 105
char = l;code = 108
char = a;code = 97
char = r;code = 114
char = ;code = 32
char = p;code = 112
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = a;code = 97
char = u;code = 117
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 = i;code = 105
char = n;code = 110
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = u;code = 117
char = l;code = 108
char = a;code = 97
char = r;code = 114
char = ;code = 32
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 = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = 2;code = 50
char = 4;code = 52
char = h;code = 104
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
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 = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
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 = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = h;code = 104
char = o;code = 111
char = s;code = 115
char = p;code = 112
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = .;code = 46
char = ;code = 32
char = H;code = 72
char = o;code = 111
char = w;code = 119
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = ,;code = 44
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = u;code = 117
char = l;code = 108
char = a;code = 97
char = r;code = 114
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = c;code = 99
char = u;code = 117
char = m;code = 109
char = u;code = 117
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 = o;code = 111
char = f;code = 102
char = ;code = 32
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 = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = v;code = 118
char = i;code = 105
char = a;code = 97
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 = 104
char = o;code = 111
char = s;code = 115
char = p;code = 112
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = h;code = 104
char = a;code = 97
char = d;code = 100
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = i;code = 105
char = t;code = 116
char = i;code = 105
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = r;code = 114
char = e;code = 101
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = f;code = 102
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = i;code = 105
char = m;code = 109
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = s;code = 115
char = l;code = 108
char = o;code = 111
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = v;code = 118
char = i;code = 105
char = a;code = 97
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = a;code = 97
char = l;code = 108
char = m;code = 109
char = i;code = 105
char = t;code = 116
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = .;code = 46
char = ;code = 32
char = O;code = 79
char = n;code = 110
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = l;code = 108
char = o;code = 111
char = w;code = 119
char = e;code = 101
char = r;code = 114
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 = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = a;code = 97
char = l;code = 108
char = m;code = 109
char = i;code = 105
char = t;code = 116
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = u;code = 117
char = l;code = 108
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = ;code = 32
char = e;code = 101
char = x;code = 120
char = a;code = 97
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = c;code = 99
char = a;code = 97
char = u;code = 117
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = e;code = 101
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = o;code = 111
char = l;code = 108
char = ;code = 32
char = n;code = 110
char = e;code = 101
char = e;code = 101
char = d;code = 100
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = s;code = 115
char = o;code = 111
char = l;code = 108
char = v;code = 118
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = c;code = 99
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = ;code = 32
char = v;code = 118
char = i;code = 105
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 = 59
char = ;code = 32
char = i;code = 105
char = t;code = 116
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = h;code = 104
char = a;code = 97
char = v;code = 118
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = s;code = 115
char = i;code = 105
char = m;code = 109
char = i;code = 105
char = l;code = 108
char = a;code = 97
char = r;code = 114
char = l;code = 108
char = y;code = 121
char = ;code = 32
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 = o;code = 111
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = t;code = 116
char = w;code = 119
char = o;code = 111
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 = a;code = 97
char = t;code = 116
char = ;code = 32
char = l;code = 108
char = o;code = 111
char = w;code = 119
char = e;code = 101
char = r;code = 114
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 = 46
char = ;code = 32
char = T;code = 84
char = o;code = 111
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = m;code = 109
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = c;code = 99
char = l;code = 108
char = u;code = 117
char = s;code = 115
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = ,;code = 44
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = n;code = 110
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = n;code = 110
char = e;code = 101
char = e;code = 101
char = d;code = 100
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = b;code = 98
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 = z;code = 122
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = v;code = 118
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = u;code = 117
char = s;code = 115
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 = e;code = 101
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = u;code = 117
char = l;code = 108
char = t;code = 116
char = ;code = 32
char = a;code = 97
char = f;code = 102
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = 7;code = 55
char = h;code = 104
char = ;code = 32
char = o;code = 111
char = f;code = 102
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 = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = c;code = 99
char = l;code = 108
char = e;code = 101
char = a;code = 97
char = r;code = 114
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = m;code = 109
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = e;code = 101
char = n;code = 110
char = g;code = 103
char = t;code = 116
char = h;code = 104
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 = p;code = 112
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = d;code = 100
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = s;code = 115
char = a;code = 97
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = w;code = 119
char = h;code = 104
char = i;code = 105
char = c;code = 99
char = h;code = 104
char = ;code = 32
char = a;code = 97
char = l;code = 108
char = l;code = 108
char = o;code = 111
char = w;code = 119
char = s;code = 115
char = ;code = 32
char = t;code = 116
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 = 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 = l;code = 108
char = a;code = 97
char = r;code = 114
char = g;code = 103
char = e;code = 101
char = -;code = 45
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 = ;code = 32
char = s;code = 115
char = e;code = 101
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = f;code = 102
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 = 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 = t;code = 116
char = i;code = 105
char = m;code = 109
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = q;code = 113
char = u;code = 117
char = i;code = 105
char = r;code = 114
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 = m;code = 109
char = e;code = 101
char = t;code = 116
char = h;code = 104
char = o;code = 111
char = d;code = 100
char = s;code = 115
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = a;code = 97
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = m;code = 109
char = o;code = 111
char = s;code = 115
char = t;code = 116
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = m;code = 109
char = m;code = 109
char = o;code = 111
char = n;code = 110
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = u;code = 117
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = d;code = 100
char = a;code = 97
char = y;code = 121
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 = s;code = 115
char = s;code = 115
char = a;code = 97
char = y;code = 121
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = q;code = 113
char = u;code = 117
char = i;code = 105
char = c;code = 99
char = k;code = 107
char = ,;code = 44
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = y;code = 121
char = ;code = 32
char = e;code = 101
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = o;code = 111
char = m;code = 109
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = l;code = 108
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 = r;code = 114
char = o;code = 111
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char = i;code = 105
char = d;code = 100
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char = s;code = 115
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = u;code = 117
char = l;code = 108
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = u;code = 117
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = r;code = 114
char = t;code = 116
char = a;code = 97
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = i;code = 105
char = e;code = 101
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 = o;code = 111
char = r;code = 114
char = d;code = 100
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = o;code = 111
char = n;code = 110
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = 5;code = 53
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result sql = We have developed a rapid, inexpensive, and reliable assay for the determination of ascorbate using a plate reader. In this assay, ascorbic acid is oxidized to dehydroascorbic acid using Tempol (4-hydroxy-2,2,6,6-tetramethylpiperidinyloxy) and then reacted with o-phenylenediamine to form the condensation product, 3-(dihydroxyethyl)furo[3,4-b]quinoxaline-1-one. The rate of appearance of this product is monitored over time using fluorescence. With this method, it is possible to analyze 96 wells in less than 10min. This permits the analysis of 20 samples with a full set of standards and blanks, all in triplicate. The assay is robust for a variety of samples, including orange juice, swine plasma, dog plasma, and cultured cells. To demonstrate the usefulness of the assay for the rapid determination of experimental parameters, we investigated the uptake of ascorbate and two different ascorbate derivatives in U937 cells. We found similar plateau levels of intracellular ascorbate at 24h for ascorbate and ascorbate phosphate. However, the intracellular accumulation of ascorbate via the phosphate ester had an initial rate that was three to five times slower than that via the palmitate ester. Only lower concentrations of the palmitate ester could be examined because the ethanol needed as solvent decreased cell viability; it behaved similarly to the other two compounds at lower concentrations. To come to these conclusions, only nine plates needed to be analyzed to provide us with the end result after only 7h of analysis. This clearly demonstrates the strength of the plate reader assay, which allows the analysis of large-sample sets in a fraction of the time required for the methods that are most commonly used today. The assay is quick, is very economical, and provides results with uncertainties on the order of only 5%.

Publication: Anal. Biochem. 2007 Jun 1 ;365(1)::31-9.
Publication Date: 2007 Jun 1
Study Author(s): Vislisel, Jesse M;Schafer, Freya Q;Buettner, Garry R;
Institution: ESR Facility and Free Radical and Radiation Biology, University of Iowa, Iowa City, IA 52242, USA.
Shortcut link to this study:
We have developed a rapid, inexpensive, and reliable assay for the determination of ascorbate using a plate reader. In this assay, ascorbic acid is oxidized to dehydroascorbic acid using Tempol (4-hydroxy-2,2,6,6-tetramethylpiperidinyloxy) and then reacted with o-phenylenediamine to form the condensation product, 3-(dihydroxyethyl)furo[3,4-b]quinoxaline-1-one. The rate of appearance of this product is monitored over time using fluorescence. With this method, it is possible to analyze 96 wells in less than 10min. This permits the analysis of 20 samples with a full set of standards and blanks, all in triplicate. The assay is robust for a variety of samples, including orange juice, swine plasma, dog plasma, and cultured cells. To demonstrate the usefulness of the assay for the rapid determination of experimental parameters, we investigated the uptake of ascorbate and two different ascorbate derivatives in U937 cells. We found similar plateau levels of intracellular ascorbate at 24h for ascorbate and ascorbate phosphate. However, the intracellular accumulation of ascorbate via the phosphate ester had an initial rate that was three to five times slower than that via the palmitate ester. Only lower concentrations of the palmitate ester could be examined because the ethanol needed as solvent decreased cell viability; it behaved similarly to the other two compounds at lower concentrations. To come to these conclusions, only nine plates needed to be analyzed to provide us with the end result after only 7h of analysis. This clearly demonstrates the strength of the plate reader assay, which allows the analysis of large-sample sets in a fraction of the time required for the methods that are most commonly used today. The assay is quick, is very economical, and provides results with uncertainties on the order of only 5%.
PMID: 17433246

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