Elementar

Rapid N exceed PLUS

Compact Dumas nitrogen and protein analyzer for fast, reliable analysis with low operating costs
Sample weights up to 1.5 g
Nitrogen and protein determination in 3–4 minutes
Cost-efficient CO₂ carrier gas

Rapid N exceed PLUS

Nitrogen and Protein Analyzer

What is the rapid N exceed PLUS?

The Elementar rapid N exceed PLUS is a compact nitrogen and protein analyzer designed for fast, reliable determination of nitrogen content in a wide range of sample matrices. Using the Dumas combustion method, the instrument enables laboratories to determine nitrogen and calculate protein content without the acid digestion required by the Kjeldahl method.

With analysis times of approximately 3–4 minutes per sample, sample weights up to 1.5 g and a cost-efficient CO₂ carrier gas, the rapid N exceed PLUS combines analytical performance with low operating costs.

The analyzer is suitable for routine quality control and laboratory analysis in the food, feed, agricultural, environmental and materials sectors.

Low operating costs with EAS REGAINER technology

The rapid N exceed PLUS is designed to minimize the cost per analysis while maintaining reliable analytical performance.

Instead of relying on helium as a carrier gas, the instrument uses CO₂, providing a cost-efficient alternative for routine nitrogen and protein determination.

Elementar’s EAS REGAINER® technology extends consumable operating life and reduces replacement frequency. Combined with simplified maintenance and reduced calibration requirements, this helps laboratories minimize operating costs and instrument downtime.

Reliable nitrogen determination across different sample matrices

The rapid N exceed PLUS combines optimized sample introduction with controlled combustion to support accurate nitrogen measurements across different sample types.

Its matrix-independent calibration approach reduces the need for frequent recalibration or matrix-specific standards. The instrument also provides detection capabilities in the low ppm range, making it suitable for applications involving low nitrogen concentrations.

The system accommodates solid and liquid samples, with preparation procedures adapted to the sample matrix.

Supported sample types 

The rapid N exceed PLUS is validated for a wide range of matrices:

  • Food and beverage
  • Beer, wort, and malt
  • Meat products
  • Plastics and polymers
  • Cereals, starch and alternative products
  • Plant material
  • Animal feed
  • Soil, sediments, and fertilizers
  • Milk and dairy products

Compliant with international ISO Standards 

The Rapid N Exceed is compliant with ISO 16634-1 and ISO 16634-2

Key features

  • Dumas combustion analysis: rapid nitrogen determination without concentrated sulfuric acid digestion.
  • Fast analysis: results in approximately 3–4 minutes per sample, depending on sample type.
  • CO₂ carrier gas: cost-efficient operation without helium as the carrier gas.
  • EAS REGAINER® technology: extended consumable operating life and reduced maintenance frequency.
  • Controlled oxygen jet injection: supports efficient combustion and sample decomposition.
  • Catalytic post-combustion: supports complete combustion of challenging sample matrices.
  • Matrix-independent calibration: reduces the need for matrix-specific calibration standards.
  • Integrated autosampler: 60, 80 or 120-positions.
  • Simplified maintenance: tool-free connections, pre-filled tubes and an accessible slide-out furnace.
  • Intuitive software: guided workflows, automatic system checks and instrument status monitoring.
  • Laboratory connectivity: LIMS integration and optional 21 CFR Part 11 functionality.

Specifications

  • Maximum sample weight: 1.5 g / 1.5 mL
  • Analysis time: 3–4 minutes per sample
  • Carrier gas: CO₂, cost-effective and safe
  • Detection limit: low ppm range
  • Detector: Thermal Conductivity Detector (TCD)
  • Maximum furnace temperature: 1200 °C
  • Required gases: carbon dioxide and oxygen
  • Dimensions: 48 x 55 x 57 cm (W x D x H)

Ask about this instrument

SciSPX helps laboratories in Belgium, the Netherlands and Luxembourg find the right analytical instruments, with expert advice, installation, training and technical support.

Frequently asked questions

The rapid N exceed PLUS measures nitrogen content using the Dumas combustion method. Protein content can be calculated from the measured nitrogen concentration using an appropriate conversion factor.

The Dumas method determines nitrogen through high-temperature combustion, while the Kjeldahl method uses chemical digestion followed by nitrogen determination. Dumas analysis avoids concentrated sulfuric acid digestion and generally provides faster results. The methods may measure different nitrogen fractions, depending on the sample and procedure.

A typical analysis takes approximately 3–4 minutes per sample, depending on the sample type.

The instrument uses carbon dioxide (CO₂) as its carrier gas and oxygen for combustion.

Yes. The instrument supports liquid sample analysis. Liquid samples are prepared in sealed tin capsules using an appropriate sample preparation procedure.

Downloads

Brochure rapid MAX N exceed PLUS

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