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应用固体电极伏安法,测定了土壤中亚铁络合物的稳定常数。土壤溶液的logK值为2.6—4.5,平均3.6。溶液通气后,logK值增大。亚铁络合物的logK值比锰络合物者约大0.8单位。
The stability constant of ferrous complexes in soil was determined by the solid-state voltammetry. The logK values for soil solutions ranged from 2.6 to 4.5 with an average of 3.6. After ventilation, the logK value increased. The ferrous complex has a log K value of about 0.8 units greater than the manganese complex.