The Kjeldahl method is a classic method for the determination of nitrogen. At present, the Kjeldahl method is generally used to measure soil, food, agricultural products, feed and other nitrogen-containing compounds. When using this method to measure samples, it needs to go through three processes: sample digestion-distillation separation-titration analysis.

Distillation and titration analysis can be performed after the sample is digested and cooled to room temperature. The principle of the process is as follows: (NH₄) ₂ SO ₄ +2NaOH = Na ₂ SO ₄ +2H ₂ O+2NH ₃ ↑

That is, under alkaline conditions, the effective sample “ammonia” is separated by high-temperature steam → collected in a titration cup containing boric acid absorption solution → titrated with an acidic titrant and analyzed to obtain the results.

1. One-button operation for adding boric acid, dilution liquid, and alkali; automatic temperature control; automatic distillation and separation of samples; automatic recovery of samples; and automatic stop after separation is complete.
2. Operating system with a 4-inch color touchscreen for easy, intuitive human-machine interaction.
3. Steam boiler made of 304 stainless steel for stable, reliable performance and strong pressure resistance.
4. The sodium-calcium ratio ammonia separator made of polymer materials meets the requirements for alkaline working conditions.
5. The system automatically shuts down after 60 minutes of inactivity, ensuring energy savings, safety, and peace of mind.
6. Safety door ensures operator safety.
7. Low water alarm for the steam system to prevent accidents.
8. Over-temperature alarm for the steam boiler to prevent accidents