The nitrogen analyzer is an instrument for determining the content of nitrogen and protein in a sample, which is designed and manufactured based on the principle of the Kjeldahl method. The Kjeldahl method includes processes such as digestion, distillation, titration, and data calculation. The nitrogen analyzer can be divided into nitrogen-determining devices, automatic nitrogen analyzer, and full automatic nitrogen analyzer.

Full automatic Kjeldahl analyzer, as the preferred instrument for protein determination, is widely used in the determination of protein content in milk and dairy products. The automatic Kjeldahl nitrogen analyzer has the characteristics of high sensitivity, fast analysis speed, wide application range, less samples required, relatively simple operation, etc. It is currently the most widely used instrument for the determination of protein in milk and dairy products. The simple analysis equipment process of full automatic Kjeldahl apparatus consists of four basic parts: distillation device, titration device, testing device, and waste discharge device.

When using the Kjeldahl nitrogen analyzer, you should carefully read the instruction manual of the instrument repeatedly, so as to be familiar with, understand, and master the functions, characteristics, and mutual matching of the main components of the instrument. At the same time, strictly follow the requirements of the instruction manual and instrument operating procedures, and carry out standardized operation, which is the premise of correct use and scientific maintenance of the instrument.