Why is Kjeldahl's method generally preferred over Dumas' method for the estimation of nitrogen in ag — Practical Organic Chemistry and Purification Chemistry Question

💡 Solution & Explanation

While Dumas' method works for all nitrogenous compounds, Kjeldahl's method is preferred for food stuffs, soil, and fertilizers because it is much faster, simpler, and more convenient for routine laboratory analysis, provided the nitrogen is not in a ring, nitro, or azo group.