char = E;code = 69 char = v;code = 118 char = a;code = 97 char = l;code = 108 char = u;code = 117 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 = w;code = 119 char = o;code = 111 char = r;code = 114 char = k;code = 107 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = a;code = 97 char = i;code = 105 char = r;code = 114 char = ;code = 32 char = q;code = 113 char = u;code = 117 char = a;code = 97 char = l;code = 108 char = i;code = 105 char = t;code = 116 char = y;code = 121 char = ;code = 32 char = b;code = 98 char = y;code = 121 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 = s;code = 115 char = e;code = 101 char = m;code = 109 char = i;code = 105 char = p;code = 112 char = e;code = 101 char = r;code = 114 char = m;code = 109 char = e;code = 101 char = a;code = 97 char = b;code = 98 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = m;code = 109 char = e;code = 101 char = m;code = 109 char = b;code = 98 char = r;code = 114 char = a;code = 97 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = v;code = 118 char = i;code = 105 char = c;code = 99 char = e;code = 101 char = s;code = 115 char = .;code = 46 char = ;code = 32 char = A;code = 65 char = n;code = 110 char = a;code = 97 char = l;code = 108 char = y;code = 121 char = s;code = 115 char = i;code = 105 char = s;code = 115 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = o;code = 111 char = r;code = 114 char = g;code = 103 char = a;code = 97 char = n;code = 110 char = o;code = 111 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = s;code = 115 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = r;code = 114 char = u;code = 117 char = s;code = 115 char = ;code = 32 char = p;code = 112 char = e;code = 101 char = s;code = 115 char = t;code = 116 char = i;code = 105 char = c;code = 99 char = i;code = 105 char = d;code = 100 char = e;code = 101 char = s;code = 115 char = .;code = 46 result sql = Evaluation of working air quality by using semipermeable membrane devices. Analysis of organophosphorus pesticides.
Evaluation of working air quality by using semipermeable membrane devices. Analysis of organophosphorus pesticides.char = I;code = 73 char = t;code = 116 char = ;code = 32 char = h;code = 104 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = e;code = 101 char = n;code = 110 char = ;code = 32 char = e;code = 101 char = v;code = 118 char = a;code = 97 char = l;code = 108 char = u;code = 117 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 = s;code = 115 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = s;code = 115 char = e;code = 101 char = m;code = 109 char = i;code = 105 char = p;code = 112 char = e;code = 101 char = r;code = 114 char = m;code = 109 char = e;code = 101 char = a;code = 97 char = b;code = 98 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = m;code = 109 char = e;code = 101 char = m;code = 109 char = b;code = 98 char = r;code = 114 char = a;code = 97 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = v;code = 118 char = i;code = 105 char = c;code = 99 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = (;code = 40 char = S;code = 83 char = P;code = 80 char = M;code = 77 char = D;code = 68 char = s;code = 115 char = );code = 41 char = ;code = 32 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = p;code = 112 char = a;code = 97 char = s;code = 115 char = s;code = 115 char = i;code = 105 char = v;code = 118 char = e;code = 101 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 = r;code = 114 char = s;code = 115 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = o;code = 111 char = r;code = 114 char = g;code = 103 char = a;code = 97 char = n;code = 110 char = o;code = 111 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = s;code = 115 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = r;code = 114 char = u;code = 117 char = s;code = 115 char = ;code = 32 char = p;code = 112 char = e;code = 101 char = s;code = 115 char = t;code = 116 char = i;code = 105 char = c;code = 99 char = i;code = 105 char = d;code = 100 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = f;code = 102 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = ;code = 32 char = a;code = 97 char = i;code = 105 char = r;code = 114 char = ,;code = 44 char = ;code = 32 char = i;code = 105 char = n;code = 110 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 = t;code = 116 char = o;code = 111 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = m;code = 109 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = 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 = t;code = 116 char = a;code = 97 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 = w;code = 119 char = o;code = 111 char = r;code = 114 char = k;code = 107 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = e;code = 101 char = n;code = 110 char = v;code = 118 char = i;code = 105 char = r;code = 114 char = o;code = 111 char = n;code = 110 char = m;code = 109 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = s;code = 115 char = .;code = 46 char = ;code = 32 char = A;code = 65 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 = a;code = 97 char = l;code = 108 char = l;code = 108 char = y;code = 121 char = ,;code = 44 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 = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = S;code = 83 char = P;code = 80 char = M;code = 77 char = D;code = 68 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = p;code = 112 char = o;code = 111 char = r;code = 114 char = t;code = 116 char = a;code = 97 char = b;code = 98 char = l;code = 108 char = e;code = 101 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 = r;code = 114 char = s;code = 115 char = ;code = 32 char = h;code = 104 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = e;code = 101 char = n;code = 110 char = ;code = 32 char = a;code = 97 char = l;code = 108 char = s;code = 115 char = o;code = 111 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = s;code = 115 char = i;code = 105 char = d;code = 100 char = e;code = 101 char = r;code = 114 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 = n;code = 110 char = a;code = 97 char = l;code = 108 char = y;code = 121 char = t;code = 116 char = i;code = 105 char = c;code = 99 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = m;code = 109 char = e;code = 101 char = t;code = 116 char = h;code = 104 char = o;code = 111 char = d;code = 100 char = o;code = 111 char = l;code = 108 char = o;code = 111 char = g;code = 103 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 = d;code = 100 char = i;code = 105 char = a;code = 97 char = z;code = 122 char = i;code = 105 char = n;code = 110 char = o;code = 111 char = n;code = 110 char = ,;code = 44 char = ;code = 32 char = c;code = 99 char = h;code = 104 char = l;code = 108 char = o;code = 111 char = r;code = 114 char = p;code = 112 char = y;code = 121 char = r;code = 114 char = i;code = 105 char = f;code = 102 char = o;code = 111 char = s;code = 115 char = -;code = 45 char = m;code = 109 char = e;code = 101 char = t;code = 116 char = h;code = 104 char = y;code = 121 char = l;code = 108 char = ,;code = 44 char = ;code = 32 char = p;code = 112 char = i;code = 105 char = r;code = 114 char = i;code = 105 char = m;code = 109 char = i;code = 105 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = s;code = 115 char = -;code = 45 char = m;code = 109 char = e;code = 101 char = t;code = 116 char = h;code = 104 char = y;code = 121 char = l;code = 108 char = ,;code = 44 char = ;code = 32 char = c;code = 99 char = h;code = 104 char = l;code = 108 char = o;code = 111 char = r;code = 114 char = p;code = 112 char = y;code = 121 char = r;code = 114 char = i;code = 105 char = f;code = 102 char = o;code = 111 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = f;code = 102 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = h;code = 104 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = S;code = 83 char = P;code = 80 char = M;code = 77 char = D;code = 68 char = s;code = 115 char = ;code = 32 char = e;code = 101 char = x;code = 120 char = p;code = 112 char = o;code = 111 char = s;code = 115 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 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 char = n;code = 110 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = a;code = 97 char = i;code = 105 char = r;code = 114 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 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 = m;code = 109 char = i;code = 105 char = c;code = 99 char = r;code = 114 char = o;code = 111 char = w;code = 119 char = a;code = 97 char = v;code = 118 char = e;code = 101 char = -;code = 45 char = a;code = 97 char = s;code = 115 char = s;code = 115 char = i;code = 105 char = s;code = 115 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = e;code = 101 char = x;code = 120 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = c;code = 99 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = g;code = 103 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = c;code = 99 char = h;code = 104 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = a;code = 97 char = t;code = 116 char = o;code = 111 char = g;code = 103 char = r;code = 114 char = a;code = 97 char = p;code = 112 char = h;code = 104 char = y;code = 121 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = s;code = 115 char = s;code = 115 char = ;code = 32 char = s;code = 115 char = p;code = 112 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = t;code = 116 char = r;code = 114 char = y;code = 121 char = ;code = 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 = 46 char = ;code = 32 char = L;code = 76 char = i;code = 105 char = m;code = 109 char = i;code = 105 char = t;code = 116 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = t;code = 116 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 = (;code = 40 char = L;code = 76 char = O;code = 79 char = D;code = 68 char = );code = 41 char = ;code = 32 char = v;code = 118 char = a;code = 97 char = l;code = 108 char = u;code = 117 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = f;code = 102 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = ;code = 32 char = 2;code = 50 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = 4;code = 52 char = n;code = 110 char = g;code = 103 char = S;code = 83 char = P;code = 80 char = M;code = 77 char = D;code = 68 char = (;code = 40 char = -;code = 45 char = 1;code = 49 char = );code = 41 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 = p;code = 112 char = e;code = 101 char = a;code = 97 char = t;code = 116 char = a;code = 97 char = b;code = 98 char = i;code = 105 char = l;code = 108 char = i;code = 105 char = t;code = 116 char = y;code = 121 char = ;code = 32 char = f;code = 102 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = ;code = 32 char = 2;code = 50 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = 7;code = 55 char = %;code = 37 char = ;code = 32 char = w;code = 119 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = b;code = 98 char = t;code = 116 char = a;code = 97 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = b;code = 98 char = y;code = 121 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 = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = a;code = 97 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = e;code = 101 char = m;code = 109 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = e;code = 101 char = d;code = 100 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 = o;code = 111 char = l;code = 108 char = o;code = 111 char = g;code = 103 char = y;code = 121 char = .;code = 46 char = ;code = 32 char = T;code = 84 char = h;code = 104 char = e;code = 101 char = o;code = 111 char = r;code = 114 char = e;code = 101 char = t;code = 116 char = i;code = 105 char = c;code = 99 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = l;code = 108 char = c;code = 99 char = u;code = 117 char = l;code = 108 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = s;code = 115 char = a;code = 97 char = m;code = 109 char = p;code = 112 char = l;code = 108 char = i;code = 105 char = n;code = 110 char = g;code = 103 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 = 32 char = w;code = 119 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = e;code = 101 char = m;code = 109 char = p;code = 112 char = l;code = 108 char = o;code = 111 char = y;code = 121 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 = e;code = 101 char = s;code = 115 char = t;code = 116 char = i;code = 105 char = m;code = 109 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 = p;code = 112 char = e;code = 101 char = s;code = 115 char = t;code = 116 char = i;code = 105 char = c;code = 99 char = i;code = 105 char = d;code = 100 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 = i;code = 105 char = n;code = 110 char = ;code = 32 char = a;code = 97 char = i;code = 105 char = r;code = 114 char = ,;code = 44 char = ;code = 32 char = b;code = 98 char = y;code = 121 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 = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = p;code = 112 char = e;code = 101 char = s;code = 115 char = t;code = 116 char = i;code = 105 char = c;code = 99 char = i;code = 105 char = d;code = 100 char = e;code = 101 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = s;code = 115 char = s;code = 115 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = t;code = 116 char = a;code = 97 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = d;code = 100 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 = d;code = 100 char = e;code = 101 char = p;code = 112 char = l;code = 108 char = o;code = 111 char = y;code = 121 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = S;code = 83 char = P;code = 80 char = M;code = 77 char = D;code = 68 char = .;code = 46 char = ;code = 32 char = T;code = 84 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = b;code = 98 char = t;code = 116 char = a;code = 97 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = L;code = 76 char = O;code = 79 char = D;code = 68 char = ;code = 32 char = v;code = 118 char = a;code = 97 char = l;code = 108 char = u;code = 117 char = e;code = 101 char = s;code = 115 char = ,;code = 44 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 = s;code = 115 char = a;code = 97 char = m;code = 109 char = p;code = 112 char = l;code = 108 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = t;code = 116 char = i;code = 105 char = m;code = 109 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = 7;code = 55 char = ;code = 32 char = d;code = 100 char = a;code = 97 char = y;code = 121 char = s;code = 115 char = ,;code = 44 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 = 1;code = 49 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = 2;code = 50 char = n;code = 110 char = g;code = 103 char = m;code = 109 char = (;code = 40 char = -;code = 45 char = 3;code = 51 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 = e;code = 101 char = v;code = 118 char = a;code = 97 char = l;code = 108 char = u;code = 117 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 = a;code = 97 char = i;code = 105 char = r;code = 114 char = ;code = 32 char = q;code = 113 char = u;code = 117 char = a;code = 97 char = l;code = 108 char = i;code = 105 char = t;code = 116 char = y;code = 121 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = a;code = 97 char = ;code = 32 char = p;code = 112 char = e;code = 101 char = s;code = 115 char = t;code = 116 char = i;code = 105 char = c;code = 99 char = i;code = 105 char = d;code = 100 char = e;code = 101 char = ;code = 32 char = l;code = 108 char = a;code = 97 char = b;code = 98 char = o;code = 111 char = r;code = 114 char = a;code = 97 char = t;code = 116 char = o;code = 111 char = r;code = 114 char = y;code = 121 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 = n;code = 110 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 = v;code = 118 char = e;code = 101 char = ;code = 32 char = u;code = 117 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = d;code = 100 char = i;code = 105 char = a;code = 97 char = z;code = 122 char = i;code = 105 char = n;code = 110 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 = c;code = 99 char = h;code = 104 char = l;code = 108 char = o;code = 111 char = r;code = 114 char = p;code = 112 char = y;code = 121 char = r;code = 114 char = i;code = 105 char = f;code = 102 char = o;code = 111 char = s;code = 115 char = ;code = 32 char = h;code = 104 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = e;code = 101 char = n;code = 110 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = d;code = 100 char = e;code = 101 char = ;code = 32 char = i;code = 105 char = n;code = 110 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 = t;code = 116 char = o;code = 111 char = ;code = 32 char = c;code = 99 char = h;code = 104 char = e;code = 101 char = c;code = 99 char = k;code = 107 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = p;code = 112 char = e;code = 101 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 = s;code = 115 char = a;code = 97 char = f;code = 102 char = e;code = 101 char = t;code = 116 char = y;code = 121 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 = 46 char = <;code = 60 char = b;code = 98 char = r;code = 114 char = /;code = 47 char = >;code = 62 result sql = It has been evaluated the use of semipermeable membrane devices (SPMDs) as passive samplers of organophosphorus pesticides from air, in order to determine the contamination of working environments. Additionally, the use of SPMDs as portable samplers has been also considered. The analytical methodology for the determination of diazinon, chlorpyrifos-methyl, pirimiphos-methyl, chlorpyrifos and fenthion in SPMDs exposed to contaminated air was based on microwave-assisted extraction and gas chromatography with mass spectrometry determination. Limit of detection (LOD) values from 2 to 4ngSPMD(-1) and repeatability from 2 to 7% were obtained by using the aforementioned methodology. Theoretical calculated sampling rates were employed for the estimation of the pesticide concentration in air, by using the pesticide mass retained in the deployed SPMD. The obtained LOD values, for a sampling time of 7 days, were from 1 to 2ngm(-3). The evaluation of the air quality of a pesticide laboratory with an intensive use of diazinon and chlorpyrifos has been made in order to check the operation safety conditions.
Publication: Anal. Chim. Acta 2008 Sep 19 ;626(1)::21-7. :doi: 10.1016/j.aca.2008.07.039.
Publication Date: 2008 Sep 19
Study Author(s): Esteve-Turrillas, Francesc A;Pastor, Agustín;de la Guardia, Miguel;
Institution: Analytical Chemistry Department, University of Valencia, Edifici Jeroni Muñoz, 50 Dr. Moliner, 46100 Burjassot, Valencia, Spain.
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It has been evaluated the use of semipermeable membrane devices (SPMDs) as passive samplers of organophosphorus pesticides from air, in order to determine the contamination of working environments. Additionally, the use of SPMDs as portable samplers has been also considered. The analytical methodology for the determination of diazinon, chlorpyrifos-methyl, pirimiphos-methyl, chlorpyrifos and fenthion in SPMDs exposed to contaminated air was based on microwave-assisted extraction and gas chromatography with mass spectrometry determination. Limit of detection (LOD) values from 2 to 4ngSPMD(-1) and repeatability from 2 to 7% were obtained by using the aforementioned methodology. Theoretical calculated sampling rates were employed for the estimation of the pesticide concentration in air, by using the pesticide mass retained in the deployed SPMD. The obtained LOD values, for a sampling time of 7 days, were from 1 to 2ngm(-3). The evaluation of the air quality of a pesticide laboratory with an intensive use of diazinon and chlorpyrifos has been made in order to check the operation safety conditions.
PMID: 18761117