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Kjeldahl Distillation units offers various levels of automation, from simple distillation, to distillation with automatic reagents addition and residues aspiration, up to fully automated system with integrated colorimetric titration. It is a method for the quantitative determination of organic nitrogen in chemical substances like ammonia. It is used for estimating the protein content in foods and alos it is the standard method against which all other methods are judged. Kjeldhal distillation is also used to assay soils, waste waters, fertilizers and other materials.