D50/D200 Dumas Nitrogen/Protein Analyzer
Inquiry NowProduct Description
The D50 / D200 Dumas Nitrogen/Protein Analyzer is an advanced analytical instrument designed for fast, accurate, and environmentally friendly determination of nitrogen and protein content using the Dumas combustion method. This method eliminates hazardous chemicals and delivers reliable results with high repeatability, making it ideal for routine laboratory and industrial analysis.
M-Kube supplies the D50 and D200 Dumas Protein Analyzers for food, feed, agriculture, pharmaceuticals, chemicals, and research laboratories across India. As a modern alternative to the Kjeldahl method, the Dumas nitrogen analyzer ensures high throughput, low operating cost, and compliance with international testing standards—available at a competitive Dumas nitrogen analyzer price.
Key Features of D50 / D200 Dumas Analyzer
- Rapid Nitrogen & Protein Analysis (results in minutes)
- Chemical-Free Dumas Method – safe and eco-friendly operation
- High Accuracy & Repeatability with automated combustion control
- Fully Automatic Operation with minimal operator intervention
- Wide Application Range for solid, liquid, and semi-solid samples
- Low Maintenance & Operating Cost
- Touchscreen / PC-Based Control Software
- Conforms to AOAC, ISO, AACC & GB Standards
Technical Specifications:
| Analysis efficiency | 3 ∼ 4 min each |
| Weighing accuracy | ≤ 0.1 mg |
| Detection range | 0.1 – 500 mg nitrogen |
| Detection recovery rate | ≥ 99.5 % |
| Relative standard deviation (RSD) | ≤ 0.5 % (150 mg standard 10 % nitrogen) |
| LOD | 0.01 mg nitrogen |
| Sample weight | Solid ≤ 1 g, liquid ≤ 1 mL |
| Operating system | Windows 7 and above |
| Sampler | D200:1 disc x 120 1 disc x 40 positions D50:1 disc x 60 positions |
| Detector | TCD |
| TCD accuracy | ≤ 0.01℃ |
| Carrier gas | CO2 |
| Furnace temperature | 1200℃ (MAX) |
| Carrier gas purity | 99.999% |
| Oxygen purity | 99.999% |
| Internal module communication mode | RS – 485 bus |
| Peripheral interface | RS232, USB |
| Correction method | Linear or nonlinear calibration, custom calibration curve degree |
| Rated power | 2000 W |
| Dimensions (L×W×H) | 735mm×560mm×560mm |
| Net weight | 80 kg |
Working Environment:
| Power supply | 220V AC ±10% 50Hz |
| Computer | A laptop or a desktop operated with Windows 7 or above and equipped with USB or RS 232 interface |
| Temperature | 5℃ ~ 30℃ |
| Humidity | ≤ 85% |
Applications of Dumas Protein Analyzer
- Food & Beverage Industry – protein analysis in grains, dairy, meat, and processed foods
- Animal Feed & Agriculture – nitrogen and protein content determination
- Pharmaceutical & Chemical Industry
- Soil, Fertilizer & Environmental Testing
- Research Laboratories & Universities
- Quality Control & Regulatory Compliance Labs
Explore related analytical instruments from M-Kube:
Quality and Compliance
All M-Kube Dumas nitrogen analyzers are supplied from ISO-certified manufacturing facilities and tested to meet international analytical standards. Each Dumas analyzer undergoes performance validation for accuracy, repeatability, safety, and long-term reliability.
Why Choose M-Kube for Dumas Nitrogen & Protein Analyzers?
- Competitive Dumas nitrogen analyzer price
- High accuracy with fast analysis time
- Environment-friendly alternative to Kjeldahl method
- Reliable after-sales support and technical assistance
- Suitable for labs, industries, and research institutes
Get a Quote
Looking for a reliable Dumas nitrogen analyzer or Dumas protein analyzer for your laboratory or industry?
M-Kube provides advanced D50 / D200 Dumas Analyzers with full technical support across India.
📞 Call: +91 9898892994
📧 Email: marketing@mkubeenterprise.co.in
Product FAQ's
How accurate are Dumas Protein Analyzers?
Dumas Protein Analyzers offer high detection accuracy and reproducibility due to advanced TCD detection and calibrated software, delivering reliable nitrogen and protein data.
Can the D50/D200 dumas analyzer integrate with software or lab systems?
Yes — many Dumas nitrogen analyzers include advanced software for data reporting, calibration management, and compatibility with lab information management systems (LIMS).
Do I need specialized training to use a Dumas Nitrogen Analyzer?
Basic training is recommended to operate the system optimally, including sample preparation, software use, and routine maintenance, but the automated design simplifies operation for most lab technicians.
What types of samples can a Dumas Nitrogen Protein Analyzer test?
It can analyze both solid and liquid samples, including cereals, seeds, meat, dairy products, animal feed, soil, fertilizer, and industrial fluids for total nitrogen and protein content.
Can the Dumas nitrogen analyzer be installed in standard laboratories?
Yes, the system is designed for standard lab environments and requires only basic utilities such as power, gas supply, and ventilation.
How is nitrogen detected by the Dumas method?
In the Dumas method, the sample is combusted at very high temperatures in the presence of oxygen. This process converts all nitrogen compounds in the sample into nitrogen gas (N₂). The resulting gases are purified to remove moisture, carbon dioxide, and other by-products. The purified nitrogen gas is then measured using a thermal conductivity detector (TCD), which quantifies the nitrogen content accurately and quickly.
Is the Dumas method better than the Kjeldahl method?
Yes, in many applications the Dumas method is considered better than the Kjeldahl method. The Dumas method is faster, fully automated, and does not use hazardous chemicals such as sulfuric acid or catalysts. It measures total nitrogen directly, offers higher throughput, and is more environmentally friendly. While the Kjeldahl method is still used in some regulatory applications, Dumas nitrogen analysis is widely preferred for routine, high-volume testing.






