Description

Dumas N Analyzer, Dual Carrier Gas, 230V/50-60Hz

A versatile Dumas Protein/Nitrogen Analyzer, able to perform precise nitrogen analysis and protein determination using either Helium or Argon as carrier gas. Ideal for markets where Helium is scarce, it offers high throughput and precision.
OVERVIEW
Exceptional Versatility

Can operate with Argon or Helium as carrier gas
Preinstalled methods selectable in an instant
Controllable from PC with DUMAsoft™ software
Powerful, clear and detailed reporting software
Data storable in multiple formats for LIMS or PC

High Productivity

Flash determination of nitrogen & protein content
Automated analysis of preloaded samples (117 positions)
Totally unsupervised operation
Results produced 24/7/365

High Performance

Unmatched LOD (0.001 mg N (using He) – 0.01 mg N (using Ar))
RSD less than 0.5% with EDTA standard
Conforms to Good Laboratory Practice standard
Leak tests (zone or total) ensure optimum performance

Economical Operation

LoGas™ TCD with no reference gas required
Exceptionally low cost per analysis
Premium quality consumables
Low energy consumption
Lowest operator costs

Environmentally Friendly

Minimum possible waste & residues
Optimized life of consumables
Incorporates TEMS™ technology**Saving Time, Energy, Money & Space

BENEFIT
Dual Carrier Gas

Helium has been the carrier gas for elemental analyzers for many years. After years of increasing prices and supply chain interruptions, obtaining Helium has become more and more difficult and expensive, especially in some countries.

The desire to replace Helium with a more easily accessible carrier gas has intensified and become reality. This is the reason why we have developed a N/protein analyzer able to use both Helium and its best alternative, Argon, without the need for replacing any part. This is NDA 702.
Full Automation & Convenience

VELP Scientifica has designed convenience into the NDA 701 Dumas Nitrogen Analyzer to let the user concentrate on evaluating the results that are produced in just 3 to 4 minutes per sample.

Once up to 4 discs (30 positions each) have been loaded, press the start button and walk away.
With the best limit of detection on the market and an RSD lower than 0.5% for EDTA, the user is assured of high precision results.
NDA 701, the ideal solution for high throughput, being fully automated and able to run 24/7.
Working Process

The Dumas method starts with a combustion to burn the sample, obtaining elemental compounds. Water is removed by a first physical trap (DriStep™), positioned after the combustion, and a second chemical one. Between the two, the elemental substances passed through a reduction furnace. The auto-regenerative CO2 adsorbers let pass only the elemental nitrogen that is detected by theLoGas™ innovative Thermal Conductivity Detector (TCD) with no requirement for a reference gas.
DUMASoft™, Simple Data Management

All the information will be constantly monitored from the main screen, including the real time graph. A wide library of methods is pre-installed to support the user with valuable information on the analysis.

It’s also possible to create a library of the calibration curves, in order to be always ready to use the most suitable one.
At any time, a leak test can be performed, to check that the system is completely sealed and no gases comes out.

After the analysis, the user can createcustomized test report, with lots of information about the lab and its own logo.

 Reliable Autosampler

The NDA 701 autosampler provides high-quality performance, both for the sample loading and the sample conditioning, where the sample is stored into a dedicated room and purged with Helium in order to eliminate any trace of nitrogen present in the atmosphere before starting the analysis.

It can stand up to 4 discs simultaneously for an enhanced productivity.

The same autosampler is suitable for samples of any Allschoolabs (liquid, solid and semi-solid) up to 1 gram.
Specific Accessories for High Flexibility

NDA 701 is equipped with numerous accessories designed to simplify the operation.

A specific device simplifies the sample preparation for liquids; spatulas and syringes esnure correct transfer of the sample into the capsules.

In addition, VELP Scientifica produces also the main consumables, ensuring premium performance, as both the analyzer and the consumables come from the same source.
Accuracy and Precision

Discover the reliability of the NDA 701, as shown by the very low detection limit (0.003 mg N) and the good RSD% (<0.5% with EDTA standard). The unit can process up to 1 gram of samples, but also with small quantities (around 200 mg) NDA 701 gives optimum results with minimum consumption. No need for higher quantities as the results will be the same. Dumas vs. Kjeldahl DUMAS For High Productivity, non-stop performance Time Saving, few minutes required Moderate Running Costs Totally Unsupervised, fully automated Dry Chemistry No chemicals Eco-friendly, less residues and wastes Increasingly Used Method, new technique RSD%, < 0.5% (with yeast – 2.33% N) Sample Homogenization, 0.5 mm particle size KJELDAHL For Low Productivity, non-continuous operation Time-consuming, analyses last hours Affordable Equipment Cost Partly Unsupervised, not entirely automated process Wet Chemistry, uses chemicals Costly Wastes Produced, residues must be disposed of Worldwide Official Method, still the traditional technique RSD%, < 1% (with yeast – 2.28% N) Sample Homogenization, 1 mm particle size ACCESSORIES Supplied with: A00000193     –    Start-up kit (1000 analyses) 40001065       –     Autosampler with disc 1 40001504       –     DUMASoft™ Software 10003926       –      RS232 cable for balance 40001693       –      USB cable for PC, 5m OPTIONAL ACCESSORIES A00000194   –   1000 analyses kit A00000270   –    2000 analyses kit A00000271   –    4000 analyses kit A00000199   –    Disc 2 for autosampler A00000200   –    Disc 3 for autosampler A00000201   –    Disc 4 for autosampler A00000149   –    EDTA, 100 g A00000148   –    Chromosorb 10g A00000154   –    Quartz wool, 50 g A00000240   –    Vcopper™ High Reduction Efficiency, 470 g A00000157   –    Copper oxide, 50g A00000159   –    VHT catalyst, 50g A00000160   –    VLT catalyst, 25g A00000153   –    Tin Foil Cups 36x36mm, 150pcs A00000260   –    Tin foils 50x50mm, 450 pcs A00000262   –    Mold for tin foils 50x50mm A00000235   –     Rice flour, 30g A00000236   –     High temperature sealing grease A00000225   –     Anhydrone, 454g A00000162   –     Quartz reactor tube A00000226   –      Pre-Packed Reduction Reactor A00000158   –      Pre-Packed Combustion Reactor A00000161   –     Quartz ash insert A00000198   –    Ceramic ash insert A00000217   –      Tin foil cup closing device A00000192NDA  –    IQ/OQ/PQ Manual