In Kjeldahl's method, organic $\mathrm{N}$ is estimated as
In Kjeldahl's method, organic $\mathrm{N}$ is estimated as
nitrogen
ammonia
nitric acid
nitrogen dioxide
Solution
In Kjeldahl procedure, after digestion in concentrated sulphuric acid, the total organic $\mathrm{N}$ is converted to ammonium sulphate and ammonia is formed. When it is distilled into boric acid solution under alkaline conditions. It is a method for quantitative determination of nitrogen contained in organic substances plus the nitrogen contained in inorganic compounds.
