Nitrogen analyzer rapid N exceed® PLUS

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Overview
The rapid N exceed® PLUS is a compact nitrogen and protein analyzer based on the Dumas combustion method, designed for low running costs and high analytical performance. It delivers fast nitrogen and protein determination in approximately 3–4 minutes per sample, supports sample weights up to 1.5 g / 1.5 ml and is optimized for automated high-throughput workflows while operating helium-free using CO2 as carrier gas.

Key benefits

• Low cost per sample via CO2 carrier gas and EAS REGAINER® consumable technology.
• Fast throughput: typical analysis time ~3–4 min per sample.
• User-friendly: intuitive software, smart workflows, automatic system checks and tool-free maintenance.
• Reliable, matrix-independent results ensured by optimized sample introduction, complete combustion and controlled O2 jet-injection.
• Long-term support: 10-year commercial guarantee on the high-temperature furnace and TCD cell; spare parts guaranteed for a minimum of 10 years.

Operational & workflow details
The instrument includes an integrated autosampler (standard 60 positions; optional 80 or 120 positions) that can be reloaded during analysis. The slide-out furnace and front-door access provide ergonomic maintenance and fast replacement of wear parts. A front-door status display indicates system readiness and maintenance needs. Sample preparation: solids wrapped in tin foil or nitrogen-free paper; liquids sealed in tin capsules.

Applications

• Nitrogen determination
• Protein determination (calculation via N × factor)

Gallery highlights

• Images showing the compact instrument, open front-door access, slide-out furnace and sample carousel.
• Sample carousel capacities: standard 60 positions; optional 80 or 120 positions.

Accessories (examples)

• Analytical balances (recommended from leading manufacturers).
• Sample former and pressing tools for solid samples, mechanical press for pellets.
• Capsule sealing press for gas-tight sealing of liquid samples in tin capsules.

Product standards & method
High-temperature Dumas combustion with quantitative recovery and detection of released nitrogen. Compatible with ISO, EN, DIN, AOAC and other national and international standards. Helium-free operation possible using CO2 as carrier gas.

Technical specifications

• Model: rapid N exceed® PLUS
• Method: Dumas high-temperature combustion with catalytic post-combustion
• Detector: Thermal Conductivity Detector (TCD)
• Maximum sample weight: up to 1.5 g (or 1.5 ml for liquids)
• Element range: N up to 500 mg absolute; from ppm to 100%
• Precision: < 0.05 % absolute (example: 250 mg aspartic acid), matrix dependent
• Analysis time: ~3–4 minutes per sample, depending on sample type
• Autosampler: integrated, standard 60 positions (optional 80 or 120); reloadable during analysis
• Maximum furnace temperature: 1,200 °C
• Required gases: carbon dioxide (CO2) and oxygen (O2)
• Instrument control: Windows®-based rapid N exceed® PLUS software with LIMS integration; 21 CFR Part 11 optional
• Dimensions (W x D x H): 48 x 55 x 57 cm
• Consumables technology: EAS REGAINER® to reduce consumable consumption and extend uptime
• Detection limit: low ppm range (matrix dependent)
• Commercial guarantee: 10-year commercial guarantee on combustion furnace and TCD cell; spare parts availability ≥10 years
• Optional accessories: electronic balance, sample former & pressing tools, capsule sealing press