The Kjeldahl method converts nitrogen-containing organic matter into inorganic nitrogen ammonium sulfate for detection, and the measured value of the nitrogen content is multiplied by a certain coefficient to obtain the protein content. This method is determined as the current national standard and internationally accepted method for the determination of protein content in food, and the INNOVA Kjeldahl nitrogen analyzer is a fully automatic nitrogen measurement distillation system designed according to the principle of Kjeldahl nitrogen determination, which can be used for nitrogen or Determination of protein content. Equipped with distillate temperature detection function to avoid ammonia volatilization caused by high distillate temperature.