char = [;code = 91 char = S;code = 83 char = t;code = 116 char = u;code = 117 char = d;code = 100 char = y;code = 121 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 = s;code = 115 char = o;code = 111 char = l;code = 108 char = i;code = 105 char = d;code = 100 char = ;code = 32 char = p;code = 112 char = h;code = 104 char = a;code = 97 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = 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 = 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 = p;code = 112 char = h;code = 104 char = o;code = 111 char = t;code = 116 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = t;code = 116 char = r;code = 114 char = i;code = 105 char = c;code = 99 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 = m;code = 109 char = e;code = 101 char = r;code = 114 char = c;code = 99 char = u;code = 117 char = r;code = 114 char = y;code = 121 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = 5;code = 53 char = -;code = 45 char = (;code = 40 char = 2;code = 50 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 = 4;code = 52 char = -;code = 45 char = s;code = 115 char = u;code = 117 char = l;code = 108 char = f;code = 102 char = o;code = 111 char = -;code = 45 char = 5;code = 53 char = -;code = 45 char = c;code = 99 char = h;code = 104 char = l;code = 108 char = o;code = 111 char = r;code = 114 char = o;code = 111 char = p;code = 112 char = h;code = 104 char = e;code = 101 char = n;code = 110 char = o;code = 111 char = l;code = 108 char = -;code = 45 char = 1;code = 49 char = -;code = 45 char = a;code = 97 char = z;code = 122 char = o;code = 111 char = );code = 41 char = -;code = 45 char = t;code = 116 char = h;code = 104 char = i;code = 105 char = o;code = 111 char = r;code = 114 char = h;code = 104 char = o;code = 111 char = d;code = 100 char = a;code = 97 char = n;code = 110 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = ];code = 93 char = .;code = 46 result sql = [Study on the solid phase extraction spectrophotometric determination of mercury in water with 5-(2-hydroxy-4-sulfo-5-chlorophenol-1-azo)-thiorhodanine].
[Study on the solid phase extraction spectrophotometric determination of mercury in water with 5-(2-hydroxy-4-sulfo-5-chlorophenol-1-azo)-thiorhodanine].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 = e;code = 101 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = l;code = 108 char = o;code = 111 char = r;code = 114 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 = o;code = 111 char = f;code = 102 char = ;code = 32 char = m;code = 109 char = e;code = 101 char = r;code = 114 char = c;code = 99 char = u;code = 117 char = r;code = 114 char = y;code = 121 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = 5;code = 53 char = -;code = 45 char = (;code = 40 char = 2;code = 50 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 = 4;code = 52 char = -;code = 45 char = s;code = 115 char = u;code = 117 char = l;code = 108 char = f;code = 102 char = o;code = 111 char = -;code = 45 char = 5;code = 53 char = -;code = 45 char = c;code = 99 char = h;code = 104 char = l;code = 108 char = o;code = 111 char = r;code = 114 char = o;code = 111 char = p;code = 112 char = h;code = 104 char = e;code = 101 char = n;code = 110 char = o;code = 111 char = l;code = 108 char = -;code = 45 char = 1;code = 49 char = -;code = 45 char = a;code = 97 char = z;code = 122 char = o;code = 111 char = );code = 41 char = -;code = 45 char = t;code = 116 char = h;code = 104 char = i;code = 105 char = o;code = 111 char = r;code = 114 char = h;code = 104 char = o;code = 111 char = d;code = 100 char = a;code = 97 char = n;code = 110 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = (;code = 40 char = H;code = 72 char = S;code = 83 char = T;code = 84 char = C;code = 67 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 = ;code = 32 char = s;code = 115 char = o;code = 111 char = l;code = 108 char = i;code = 105 char = d;code = 100 char = ;code = 32 char = p;code = 112 char = h;code = 104 char = a;code = 97 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = 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 = 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 = c;code = 99 char = o;code = 111 char = l;code = 108 char = o;code = 111 char = r;code = 114 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = m;code = 109 char = p;code = 112 char = l;code = 108 char = e;code = 101 char = x;code = 120 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = C;code = 67 char = 1;code = 49 char = 8;code = 56 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = r;code = 114 char = t;code = 116 char = r;code = 114 char = i;code = 105 char = d;code = 100 char = g;code = 103 char = e;code = 101 char = ,;code = 44 char = ;code = 32 char = a;code = 97 char = ;code = 32 char = n;code = 110 char = e;code = 101 char = w;code = 119 char = ;code = 32 char = m;code = 109 char = e;code = 101 char = t;code = 116 char = h;code = 104 char = o;code = 111 char = d;code = 100 char = ;code = 32 char = 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 = s;code = 115 char = ;code = 32 char = m;code = 109 char = i;code = 105 char = c;code = 99 char = r;code = 114 char = o;code = 111 char = g;code = 103 char = ;code = 32 char = x;code = 120 char = ;code = 32 char = L;code = 76 char = (;code = 40 char = -;code = 45 char = 1;code = 49 char = );code = 41 char = ;code = 32 char = l;code = 108 char = e;code = 101 char = v;code = 118 char = e;code = 101 char = l;code = 108 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = m;code = 109 char = e;code = 101 char = r;code = 114 char = c;code = 99 char = u;code = 117 char = r;code = 114 char = y;code = 121 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = s;code = 115 char = t;code = 116 char = u;code = 117 char = d;code = 100 char = i;code = 105 char = e;code = 101 char = d;code = 100 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 = 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 = c;code = 99 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = p;code = 112 char = H;code = 72 char = ;code = 32 char = 3;code = 51 char = .;code = 46 char = 6;code = 54 char = ;code = 32 char = H;code = 72 char = A;code = 65 char = c;code = 99 char = -;code = 45 char = N;code = 78 char = a;code = 97 char = A;code = 65 char = c;code = 99 char = ;code = 32 char = b;code = 98 char = u;code = 117 char = f;code = 102 char = f;code = 102 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = s;code = 115 char = o;code = 111 char = l;code = 108 char = u;code = 117 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = <;code = 60 char = b;code = 98 char = >;code = 62 char = ;code = 32 char = H;code = 72 char = S;code = 83 char = T;code = 84 char = C;code = 67 char = ;code = 32 char = :;code = 58 char = ;code = 32 char = <;code = 60 char = /;code = 47 char = b;code = 98 char = >;code = 62 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 = m;code = 109 char = e;code = 101 char = r;code = 114 char = c;code = 99 char = u;code = 117 char = r;code = 114 char = y;code = 121 char = ;code = 32 char = (;code = 40 char = I;code = 73 char = I;code = 73 char = );code = 41 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 = a;code = 97 char = ;code = 32 char = s;code = 115 char = t;code = 116 char = a;code = 97 char = b;code = 98 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = 2;code = 50 char = :;code = 58 char = 1;code = 49 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = m;code = 109 char = p;code = 112 char = l;code = 108 char = e;code = 101 char = x;code = 120 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 = o;code = 111 char = m;code = 109 char = p;code = 112 char = l;code = 108 char = e;code = 101 char = x;code = 120 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = e;code = 101 char = n;code = 110 char = r;code = 114 char = i;code = 105 char = c;code = 99 char = h;code = 104 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = b;code = 98 char = y;code = 121 char = ;code = 32 char = s;code = 115 char = o;code = 111 char = l;code = 108 char = i;code = 105 char = d;code = 100 char = ;code = 32 char = p;code = 112 char = h;code = 104 char = a;code = 97 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = 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 = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = C;code = 67 char = 1;code = 49 char = 8;code = 56 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = r;code = 114 char = t;code = 116 char = r;code = 114 char = i;code = 105 char = d;code = 100 char = g;code = 103 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 = h;code = 104 char = e;code = 101 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 = c;code = 99 char = o;code = 111 char = m;code = 109 char = p;code = 112 char = l;code = 108 char = e;code = 101 char = x;code = 120 char = ;code = 32 char = f;code = 102 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = r;code = 114 char = t;code = 116 char = r;code = 114 char = i;code = 105 char = d;code = 100 char = g;code = 103 char = e;code = 101 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = e;code = 101 char = l;code = 108 char = u;code = 117 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 = D;code = 68 char = M;code = 77 char = F;code = 70 char = .;code = 46 char = ;code = 32 char = A;code = 65 char = n;code = 110 char = ;code = 32 char = e;code = 101 char = n;code = 110 char = r;code = 114 char = i;code = 105 char = c;code = 99 char = h;code = 104 char = m;code = 109 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = ;code = 32 char = f;code = 102 char = a;code = 97 char = c;code = 99 char = t;code = 116 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = 8;code = 56 char = 0;code = 48 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = c;code = 99 char = h;code = 104 char = i;code = 105 char = e;code = 101 char = v;code = 118 char = e;code = 101 char = d;code = 100 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 = e;code = 101 char = ;code = 32 char = m;code = 109 char = e;code = 101 char = a;code = 97 char = s;code = 115 char = u;code = 117 char = r;code = 114 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = s;code = 115 char = o;code = 111 char = l;code = 108 char = u;code = 117 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ,;code = 44 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = m;code = 109 char = o;code = 111 char = l;code = 108 char = a;code = 97 char = r;code = 114 char = ;code = 32 char = a;code = 97 char = b;code = 98 char = s;code = 115 char = o;code = 111 char = r;code = 114 char = p;code = 112 char = t;code = 116 char = i;code = 105 char = v;code = 118 char = i;code = 105 char = t;code = 116 char = y;code = 121 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = 6;code = 54 char = .;code = 46 char = 2;code = 50 char = 4;code = 52 char = ;code = 32 char = x;code = 120 char = ;code = 32 char = 1;code = 49 char = 0;code = 48 char = (;code = 40 char = 4;code = 52 char = );code = 41 char = ;code = 32 char = L;code = 76 char = ;code = 32 char = x;code = 120 char = ;code = 32 char = m;code = 109 char = o;code = 111 char = L;code = 76 char = (;code = 40 char = -;code = 45 char = 1;code = 49 char = );code = 41 char = ;code = 32 char = x;code = 120 char = ;code = 32 char = c;code = 99 char = m;code = 109 char = (;code = 40 char = -;code = 45 char = 1;code = 49 char = );code = 41 char = ;code = 32 char = a;code = 97 char = t;code = 116 char = ;code = 32 char = 5;code = 53 char = 4;code = 52 char = 5;code = 53 char = ;code = 32 char = n;code = 110 char = m;code = 109 char = .;code = 46 char = ;code = 32 char = B;code = 66 char = e;code = 101 char = e;code = 101 char = r;code = 114 char = ';code = 39 char = s;code = 115 char = ;code = 32 char = l;code = 108 char = a;code = 97 char = w;code = 119 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 = e;code = 101 char = y;code = 121 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 = r;code = 114 char = a;code = 97 char = n;code = 110 char = g;code = 103 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = 0;code = 48 char = -;code = 45 char = 1;code = 49 char = .;code = 46 char = 5;code = 53 char = ;code = 32 char = m;code = 109 char = i;code = 105 char = c;code = 99 char = r;code = 114 char = o;code = 111 char = g;code = 103 char = ;code = 32 char = x;code = 120 char = ;code = 32 char = m;code = 109 char = L;code = 76 char = (;code = 40 char = -;code = 45 char = 1;code = 49 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 char = ;code = 32 char = m;code = 109 char = e;code = 101 char = t;code = 116 char = h;code = 104 char = o;code = 111 char = d;code = 100 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = 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 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 = m;code = 109 char = e;code = 101 char = r;code = 114 char = c;code = 99 char = u;code = 117 char = r;code = 114 char = y;code = 121 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = .;code = 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 = l;code = 108 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = v;code = 118 char = e;code = 101 char = ;code = 32 char = s;code = 115 char = t;code = 116 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = a;code = 97 char = r;code = 114 char = d;code = 100 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = v;code = 118 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 = 32 char = w;code = 119 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = 1;code = 49 char = .;code = 46 char = 8;code = 56 char = %;code = 37 char = -;code = 45 char = 2;code = 50 char = .;code = 46 char = 2;code = 50 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 = 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 = w;code = 119 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = 9;code = 57 char = 3;code = 51 char = %;code = 37 char = -;code = 45 char = 1;code = 49 char = 0;code = 48 char = 6;code = 54 char = %;code = 37 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 = s;code = 115 char = u;code = 117 char = l;code = 108 char = t;code = 116 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = s;code = 115 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = s;code = 115 char = f;code = 102 char = a;code = 97 char = c;code = 99 char = t;code = 116 char = o;code = 111 char = r;code = 114 char = y;code = 121 char = .;code = 46 char = <;code = 60 char = b;code = 98 char = r;code = 114 char = /;code = 47 char = >;code = 62 result sql = Based on the color reaction of mercurywith 5-(2-hydroxy-4-sulfo-5-chlorophenol-1-azo)-thiorhodanine (HSTC) and the solid phase extraction of the colored complex with C18 cartridge, a new method for the determinations microg x L(-1) level of mercury was studied. In the presence of pH 3.6 HAc-NaAc buffer solution HSTC : reacted with mercury (II) to form a stable 2:1 complex. This complex was enriched by solid phase extraction with C18 cartridge and the retained complex from cartridge was eluted with DMF. An enrichment factor of 80 was achieved. In the measured solution, the molar absorptivity was 6.24 x 10(4) L x moL(-1) x cm(-1) at 545 nm. Beer's law was obeyed in the range of 0-1.5 microg x mL(-1). This method was applied to the determination of mercury in water. The relative standard devitions were 1.8%-2.2% and the recoveries were 93%-106%. The results are satisfactory.
Publication: Guang Pu Xue Yu Guang Pu Fen Xi 2004 Sep ;24(9)::1110-2.
Publication Date: 2004 Sep
Study Author(s): Yang, Bo;Zhou, Li-qiong;Yin, Jia-yuan;
Institution: Department of Physics, Yuxi Teachers College, Yuxi 653100, China.
Shortcut link to this study:
Based on the color reaction of mercurywith 5-(2-hydroxy-4-sulfo-5-chlorophenol-1-azo)-thiorhodanine (HSTC) and the solid phase extraction of the colored complex with C18 cartridge, a new method for the determinations microg x L(-1) level of mercury was studied. In the presence of pH 3.6 HAc-NaAc buffer solution HSTC : reacted with mercury (II) to form a stable 2:1 complex. This complex was enriched by solid phase extraction with C18 cartridge and the retained complex from cartridge was eluted with DMF. An enrichment factor of 80 was achieved. In the measured solution, the molar absorptivity was 6.24 x 10(4) L x moL(-1) x cm(-1) at 545 nm. Beer's law was obeyed in the range of 0-1.5 microg x mL(-1). This method was applied to the determination of mercury in water. The relative standard devitions were 1.8%-2.2% and the recoveries were 93%-106%. The results are satisfactory.
PMID: 15762536