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25 view(s) The Kjeldahl Method
The Kjeldahl method developed in 1883 by Johan Kjeldahl is a method for the quantitative determination of nitrogen.
Method
The method consists of heating a substance with sulfuric acid, which decomposes the organic substance by oxidation to liberate the reduced nitrogen as ammonium sulfate. In this step potassium sulfate is added to increase the boiling point of the medium (from 337°F to ...
