Dumas Nitrogen Analyzer – 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.
Dumas Nitrogen Analyzer – NDA 701 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 the LoGas™ innovative Thermal Conductivity Detector (TCD) with no requirement for a reference gas.
Dumas Nitrogen Analyzer – 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 create customized test report, with lots of information about the lab and its own logo.
Dumas Nitrogen Analyzer – 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 matrix (liquid, solid and semi-solid) up to 1 gram.
Dumas Nitrogen Analyzer – 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.
Dumas Nitrogen Analyzer – 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.
Monitor Your Instrument Anytime, Anywhere with VELP Ermes
The cloud technology will reduce your daily manual tasks and repetitive operations thanks to real-time monitor and control of your NDA. Immediate event and alarm notification will inform you about your analyses and the remote analysis interruption guarantees peace-of-mind and the total control of your process.
Safely access to your instrument data and working condition trough VELP Ermes web platform. Secure your recent data on cloud and share your reports with your peers, anytime, anywhere.
Be sure to have always the best performance and new features with OTA software updates.
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
VELP Scientifica invites you to download brochures and leaflets in order to explore our premium quality solutions and to have all the major key arguments, features and specifications of a product in your hands, in any place, and at any time.
Improve your laboratory experience with secure VELP Ermes Cloud Platform and access to your VELP instruments working conditions and data anytime and anywhe…
Discover our premium solutions and food analyzers ideal for research centers and companies for N/Protein Determination (Kjeldahl and Dumas), Solvent Extrac…
Learn more about our range of Dumas Nitrogen/Protein Analyzer, able to perform precise nitrogen analysis and protein determination in a flash and with an u…
Learn more about our Dual Carrier Gas Dumas Protein/Nitrogen Analyzer, able to perform precise nitrogen analysis and protein determination in a flash with …
Learn more about our wide range of superior quality consumables for the day-to-day operation of your NDA 701 & NDA 702.
Learn more about the Dumas principle, first described by Jean-Baptiste Dumas over a century and a half ago (1831).
Discover our premium solutions and food analyzers ideal for research centers and companies for N/Protein Determination (Kjeldahl and Dumas), Solvent Extrac…
Learn more about our range of Dumas Nitrogen/Protein Analyzer, able to perform precise nitrogen analysis and protein determination in a flash and with an u…
Choose among a comprehensive library of Application Notes / White Papers and learn more on how to optimize the performance of your VELP instruments. These documents offer typical analyses of well-known samples, together with official references and suggestions, to make you an expert!
suggestions, to make you an expert!
Monitoring of the protein content during the brewing process is important to ensure the survival, growth, and productivity of the yeast used to convert sugars to ethanol and carbon dioxide.
Learn how to obtain excellent performance with NDA Series and how to work in accordance with AOAC.
Learn how to determine nitrogen in solis. The nitrogen in plants is a part of numerous compounds, including proteins, enzymes, nucleic acids, chlorophyll and vitamins essential for all biological functions.
Protein is a critical nutrient in cattle, pigs, poultry, sheep, horses and pet food diets. The protein requirements of cattle vary with age, size, and expected performance. Learn how to obtain excellent performance with NDA Series and how to work in accordance with AOAC.
The monitoring of the protein content during the brewing process is important to ensure the survival, growth, and productivity of yeast. Moreover, the protein content is an important criteria in evaluating the quality of beer: water-soluble barley proteins play a major role in the formation, stability, and texture of head foams. Learn how to obtain excellent performance with NDA Series and how to work in accordance with AOAC.
It is always more important to know the ingredients and amount of all the components, as proteins, for different reasons, including legal and nutritional purposes (labeling). Learn how to obtain excellent performance with NDA Series and how to work in accordance with AOAC.
Milk powder is an excellent sources of protein and calcium, with a very long shelf life. It does not need to be refrigerated, due to its low moisture content. Learn how to obtain excellent performance with NDA Series and how to work in accordance with ISO.
Nuts are an excellent source of protein and healthy fats, the amounts vary depending on the type of nut. Discover how to determine the N quantity in Nuts with Dumas Combustion method.
The oat (Avena sativa), sometimes called the common oat, is a species of cereal grain grown for its seed, which is known by the same name (usually in the plural, unlike other cereals and pseudocereals). While oats are suitable for human consumption as oatmeal and rolled oats, one of the most common uses is as livestock feed.
The amount of protein in pasta depends on the type of flour used to manufacture it: for instance, if it is made from durum wheat, the pasta contains protein and gluten.
Learn how to obtain excellent performance with NDA 702 and how to work in accordance with AOAC, AACC and ICC.
Nitrogen is the most important nutritional element for plants, since it is involved in building of their proteins, nucleic acids and other several cell components. Learn how to obtain excellent performance with NDA Seriesand how to work in accordance with AOAC, AACC and ICC.
A probiotic is a live microbial food ingredient that beneficially affects the host through its effects in the intestinal tract. They are widely used to prepare fermented dairy products. Learn how to obtain excellent performance with NDA 702 and how to work in accordance with ISO.
Pumpkin seeds are nutrient-rich, with especially high content of protein, dietary fiber and numerous micronutrients. The seeds have long been valued as a source of the mineral zinc, and the World Health Organization recommends their consumption as a good way of obtaining this nutrient.
Learn how to determine the protein content in mortadella sausage. Quality control of Mortadella encloses the check of chemical parameters, among these, the protein content. The mortadella proteins are of high biological value.
Soybean meal is the most important protein source used to feed farm animals. It represents two-thirds of the total world output of protein feedstuffs. Learn how to obtain excellent performance with NDA Series and how to work in accordance with AOAC.
The protein content in starch is an important parameter for the refining process, but also from a healthy point of view for people who has allergies and intolerance. Learn how to obtain excellent performance with NDA Series and how to work in accordance with AOAC.
The fermentation in yogurt determines the formation of particular compounds responsible the sensory profile of the product: for this reason, it becomes important to know the amount of key nutrients of milk and of the finished product, such as proteins.
Learn how to obtain excellent performance with NDA Series and how to work in accordance with ISO.
The determination of nitrogen content in cellulose nitrate is important to distinguish high nitrogen content substances, which are used as explosive, from the ones containing a medium or low amount of nitrogen, ideal for the preparation of jellies explosive and smokeless powders. Learn how to obtain excellent performance with NDA Series and how to work in accordance with STANAG.
Rice flour Certified Reference Material (CRM), traceable to NIST standard (SRM), is used to evaluate the reliability of the analytical method for the nitrogen and protein determination by using helium and argon as carrier gas with NDA 702, in accordance with AOAC.
Nitrogen fertilization is one of the most important factors of agricultural production. The quantity of nitrogen in the soil must be kept under control to prevent an excessive use.
Learn how to obtain excellent performance with NDA Series and how to work in accordance with AOAC and ISO.
For tire manufacturers, it is important to know the nitrogen content present in the constituent mixture, since a high amount of nitrogen adversely affects the performance of the tire, increasing the incidence of premature failure. Learn how to obtain excellent performance with NDA Series and how to work in accordance with ISO.
Different sport powder products were chosen to demonstrate the suitability of the DUMAS method for Nitrogen/ Protein analysis by using Helium and Argon as carrier gas. Download the Apllication Note.
Find out how to perform NPN and NCN determination in milk according to the Dumas combustion method.
Our compliance to statutory rules and regulations worldwide.
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the European Directive on Safety.
The Certification Body (CB) Certificate is an international program created by the IECEE for the acceptance of product safety test results among participating laboratories and certification organizations around the world.
The cNEMKOus mark ensures this product is designed and manufactured in compliance with the International Directive on Safety IEC/EN 61010-1. The cNEMKOus mark has the same legal status as any other NRTL/SCC accredited marks, for U.S. and Canada.
With the CE mark, VELP Scientifica declares that the products are designed and manufactured in compliance with the essential safety requirements of the Eur…
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