Electrophoretic Study on the Combination of Lead Ion with Gelatin
1974 Volume 1974 Issue 23 Pages 30-33
Details
1974 Volume 1974 Issue 23 Pages 30-33
The electrophoretic mobilities of gelain were measured by the moving boundary method.
The approximate charge-mobility ratio, 10.6 (per g. of gelatin), was estimated from the mobilities and the pH titration data. By converting the mobility change of gelatin produced by added lead ion into charge unit, the amount of lead ions bound to gelatin was calculated.
The association constant between lead ion and the carboxyl site of gelatin (log km=2.4) is calculated, which is a little larger than the values obtained by other methods.
