Nitrogen and protein determination in milk powder (Kjeldahl)
Nitrogen and protein determination in milk powder according to the Kjeldahl method by colorimetric titration
In this note a reliable and efficient method for the determination of total nitrogen and protein in milk powder, according to EN ISO 8968-1:2014 , AOAC 991.20  and AOAC 930.29  is presented. The samples are digested using the KjelDigester K-449. The distillation and boric acid titration are performed with the KjelMaster K-375 by colorimetric titration and the KjelSampler K-376.
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KjelMaster K-375 & KjelSampler K-376 / K-377
Perform potentiometric and colorimetric titrations with the KjelMaster K-375 and a free choice of methods at perfect usability. Gain high throughput, more automation and sophisticated data management for convenient nitrogen and protein analysis.
With four steps to occupational safety, Scrubber K-415 provides you with maximal protection. The unit neutralizes poisonous fumes and reaction gases and minimizes use of cooling water to safeguard both you and the environment.
KjelDigester K-446 / K-449
The KjelDigester K-446 / K-449 reduces the block digestion process by up to 2 hours and meets the highest safety requirements. The high degree of automation is the perfect match to the KjelMaster System allowing more samples per day to be processed.