Kjeldahl nitrogen analyzer, also known as nitrogen analyzer, protein analyzer, crude protein analyzer, is an instrument that uses the Kjeldahl nitrogen determination method to determine the nitrogen content in the sample and thus calculate the protein content.

How to solve the problem if the digestive tube of the nitrogen analyzer is full of water during use? The digestive tube of the nitrogen analyzer is full of water during use because the conductivity of the water level control device of the machine is reduced. For this  case, the solution is to open the water level device, take out the probe, and polish it with sandpaper to remove the oxide layer. Then add 3-5 grams of laboratory sodium chloride in the distilled water bucket and shake it to dissolve.

Kjeldahl nitrogen analyzer is an equipment widely used to analyze the nitrogen or protein content of samples such as food, crops, seeds, soil, fertilizers and health products, and plays an important role in modern life and industry.