Dumas nitrogen and protein analyzer
What is the rapid MAX N exceed PLUS?
The rapid MAX N exceed PLUS is a high-performance nitrogen and protein analyzer. It is designed for maximum laboratory efficiency and high sample throughput in nitrogen and protein determination. Using the safe, simple, and eco-friendly Dumas combustion method, it delivers results in just five minutes per sample.
Ideal for unattended 24/7 operation, the analyzer handles sample weights up to 5 g or 5 ml and a wide variety of sample matrices. Optimized consumables and the option to use argon as an alternative carrier gas reduce cost per analysis.
What sample types can the RAPID MAX N exceed PLUS analyze?
The upright crucible design supports sample weights and volumes up to 5 g or 5 ml, enabling analysis across a broad range of matrices without method changes:
- Liquids: milk, beer, soft drinks, juice, soy sauce
- Semi-liquids: yogurt, mayonnaise
- Solids: meat, cereals, flour
- But also: plastics and polymers, soil, sediments and fertilizers, plant material, starch and alternative proteins, animal feed
It’s an ideal solution for:
- Food and feed industries
- Contract laboratories
- Public food and feed monitoring
- Universities
What makes this analyzer flexible?
- High sample capacity: handles weights up to 5 g or 5 ml with complete combustion even for challenging matrices
- Optional autosampler and kits: supports high-throughput processing and prioritization of urgent samples
How does it achieve best-in-class throughput?
- Quick daily maintenance: simplified routines reduce downtime
- Fewer calibration runs: less time spent on calibration increases real sample throughput
- 90-position autosampler: reloadable at any time, enabling uninterrupted analysis
- Fast analysis: nitrogen and protein determination completed in five minutes per sample run
How does the RAPID MAX N exceed PLUS deliver reliable results?
- Matrix-independent calibration: ensures consistent precision and accuracy across different sample types
- Complete combustion: controlled oxygen jet-injection and catalytic post-combustion guarantee full sample oxidation
- Absolute accuracy: high precision and recovery down to the low ppm range, even for hard-to-digest samples
Compliance with international and national standards
The exceed PLUS series meets numerous international standards for food, feed, and fertilizer analysis, including:
- ISO: 16634-1, 16634-2, 14891
- ICC: 167
- EBC: 3.3.2, 4.3.2, 8.9.2, 9.9.2
- AOAC: 990.03, 992.15, 992.23, 993.13, 997.09
It also complies with national standards such as Lufa and DIN.




