Dumas Method For Nitrogen Estimation

Dumas Method The Dumas method in analytical chemistry is a method for the quantitative determination of nitrogen in chemical substances based on a method first described by Jean-Baptiste Dumas over a century and a half ago.[1]An automated instrumental technique has been developed which is capable of rapidly measuring the crude protein concentration of food samples and is beginning to...

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Kjeldahl Method for Nitrogen Estimation

Kjeldahl Method The Kjeldahl method was developed over 100 years ago for determining the nitrogen contents in organic and inorganic substances. Although the technique and apparatus have been modified over the years, the basic principles introduced by Johan Kjeldahl still endure today. Kjeldahl nitrogen determinations are performed on a variety of substances such as meat, feed, grain, waste water, soil, and many other samples. Various scientific...

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