The invention relates to an automatic Kjeldahl nitrogen determination instrument, which is based on the Kjeldahl nitrogen determination principle, is designed according to the national standard method by adopting the principles of chemistry, physics and embedded microcomputer automatic electromechanical control, and is used for determining the contents of nitrogen and protein in food, grain, crops, feed, fertilizer, soil, water and other substances.

Test condition reference: GB/T 10511 -2008; GB/T 2441 . 1-2008; GBT 8572-2010; GB _ 5009.228-2016; LY/T 1228-2015, etc.

• Automatic detection of reagents, automatic metering and addition of distilled water and reagents.
• Complete the whole process of distillation automatically, and control the pressure and temperature automatically.
• Automatically carry out multiple safety detection and alarm.
• 500 sets of data can be stored for subsequent lookup analysis.
• Long life design, key components are made of anti-corrosion materials or imported parts.
• Built-in multiple efficient sensors ensure system safety and accurate experiments.
• The system adopts hierarchical authority management to meet the requirements of laboratory standardization.
• The system presets three groups of experimental schemes for easy operation.
• Multiple safety detection measures, overheating, overcurrent, overvoltage protection, to ensure the stability and safety of the equipment.
• Aluminum alloy is used for heating, which has faster heat transfer and longer service life than graphene material.
• Customize 4 digestion schemes, which can be changed and stored at will to simplify the operation.
• Each scheme has 6 digestion stages, which fully meet the digestion requirements of different samples.
• The control system is designed with multiple cooling systems to ensure the long life and stable operation of the equipment.
• Intelligent control system, the digestion process is fully automatic.
• Functional modular design, complete supporting facilities.

It is widely used in the analysis of nitrogen and protein in the fields of food, feed, tobacco, animal husbandry, fertilizer, environment , medicine , agriculture , scientific research , teaching , quality supervision , etc . It can also be used for the detection of ammonium salt , volatile acid , alkali , etc .