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Nitrogen and Protein Determination

Premium quality solutions for Nitrogen and Protein determination with Dumas combustion method and the traditional Kjeldahl analysis

Determining nitrogen and protein levels in routine laboratory analysis is crucial, impacting various industries including food, feed, agriculture, environmental sciences, pharmaceuticals, chemicals, and cosmetics.

We have over 40 years of experience designing and developing Nitrogen and Protein instrumentation: from Kjeldahl solutions, such as Distillation and Digestion Units, to Elemental Analyzers, working according to the Dumas analytical method

The Dumas method, also known as the combustion method, is a primary method of determination of Nitrogen and Protein ensuring fast results, ease of use, and safety. However, it is considered an alternative to the classical Kjeldahl method.

Different international organizations validate both of the methods; nevertheless, in some countries, the local guidelines recommend one method rather than the other. VELP supports laboratories worldwide in finding the best solution for their needs, providing high-quality instrumentation, original consumables and tailored service support.

Elemental analyzers: precise, fast and safe Nitrogen content determination

Elemental analyzers: precise, fast and safe Nitrogen content determination
The Dumas analytical method guarantees total Nitrogen/Protein determination in a few minutes, leveraging a completely automatic and safe combustion process that prevents laboratory professionals from exposure to chemicals.

The VELP NDA 702 Dumas Nitrogen Analyzer and the CN 802 Carbon Nitrogen Elemental Analyzer are the ideal solutions for laboratories requiring a high throughput and quick turnaround time. Nitrogen determination is performed according to many international standards. At this link, you can find more details.

Moreover, the VELP Elemental Analyzers benefit from the cloud-based services of the VELP Ermes Platform for a new laboratory experience: remote access to your instruments and analysis database, easy sharing of information with your peers, remote service and application support.

Kjeldahl Analyzers: maximum versatility in Nitrogen determination, for any laboratory requirement and type of sample

Kjeldahl Analyzers: maximum versatility in Nitrogen determination, for any laboratory requirement and type of sample
The Kjeldahl method for Nitrogen Protein determination is extremely versatile as it can handle different type of samples:
  • Food & Feed (grain, meat, fish, milk, dairy, fruit, vegetables)
  • Beverage
  • Environmental analysis (agriculture, oilseeds, soil, fertilizers, water, wastewater, sludge)
  • Chemical and Pharmaceutical industries (paper, textiles, rubber, plastic, polymer)
We design and manufacture a wide range of Kjeldahl solutions consisting of Digestion Units (semi-automatic and automatic models) and five Distillation Units models,  with different automation levels to match any laboratory requirements, ensuring maximum safety for the operator and excellent performance.

Nitrogen determination is performed according to many international standards. At this link, you can find more details.
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