In our laboratory we have the most modern analytical equipment, such as the distillation unit K-350 with digestion unit K-435 and Scrubber B-414 from Büchi.

The distillation unit is used for the analysis of sample material with the Kjeldahl method after previous digestion. The method is suitable for determining the total nitrogen content in a wide variety of sample materials (food and non-food).

The distillation unit is used for the analysis of sample material with the Kjeldahl method after previous digestion. The method is suitable for determining the total nitrogen content in a wide variety of sample materials (food and non-food).

Principle of nitrogen determination:

Well homogenized samples, finely ground if possible, should be used for the analysis. The K-435 Digestion Unit is used for acid digestion of sample material according to the reflux condenser principle. In combination with the Scrubber B-414, the laboratory air remains free of harmful vapors. Distillation takes place after neutralization or alkalization of the acid-digested sample. The ammonium nitrogen expelled by steam distillation is collected in a borate solution and titrated after completion of the distillation. The nitrogen content is then determined by calculation.

Examples from the food sector:

- Protein determination in cereals

- Protein determination in meat products

- Protein determination in milk and milk products

Examples from the non-food sector

- Nitrogen determination in fermentation residues

- Nitrogen determination in plant material

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