NDA 702

Fast cost effective Dumas Nitrogen Analyser

NDA 702 Dumas elemental analyzer is the best solution for high throughput labs looking for a fast and safe analyzer with the possibility to choose between Helium and Argon as carrier gas.
The NDA 702 is powered by the DUMASoft^TM software and produces N/Protein results in just 3 to 4 minutes totally unsupervised and cloud-enabled.
NDA 702 is dramatically faster, easier, and safer than a traditional Kjeldahl system.
The NDA 702 is a safe analyzer that does not require aggressive chemicals or time-consuming analysis steps, just prepare your sample and walk away! 

• With the NDA 702, you can load different matrices of solid, semi-solid, and liquid samples at the same time.
• VELP NDA 702 elemental analyzer is designed to work 24/7, 365 days a year with fast and easy routine maintenance.
• The electronic autosampler is supplied with a disc of 30 positions and can be expanded to accommodate up to 117 samples.
• The lowest LOD in the market of  0.001 mgN with Helium and the RSD lower than 0.5% (EDTA) assure you high precision results and excellent reproducibility.

Key Features

• High throughput
• Dual carrier gas; Helium and Argon
• Disc can be expanded to accommodate up to 117 samples
• can load different matrix of solid, semi-solid and liquid samples simultaneously
• Low oxygen consumption
• VELP TEMS technology drastically reduces waste compared to other methods
• After-sale support package utilising the ERMES cloud platform and a1 envirosciences service contracts

Applications/Standards

Protein determination:

• CEREAL GRAINS AND OILSEEDS AOAC 992.23
• ANIMAL FEED AOAC 990.03
• MILK AND MILK PRODUCTS UNI EN ISO 14891, FIL-IDF 18
• FLOURS, CEREALS GRAINS, OIL SEEDS AND ANIMAL FEEDS AACC 46-30
• GRAIN AND GRAIN PRODUCTS ICC 167
• OIL SEEDS AND ANIMAL FEEDING STUFFS ISO 16634-1:2008
• BEER, WORT, AND BREWING GRAINS AOAC 997.09
• MEAT AND MEAT PRODUCTS AOAC 992.15

Nitrogen determination:

• FERTILIZERS AOAC 993.13
• SOIL ISO 13878:1998
• RUBBER, LATEX, ELASTOMERS ISO TC 45/SC 2 N2116
• CELLULOSE
• VACCINES
• PLASTICS
• PAPER

Measuring method

The Dumas method starts with the combustion of the sample which takes place inside the VELP combustion furnace (CF) at a temperature higher than 1000°C to obtain elemental compounds.
Water separation is performed in 2 steps in the NDA 702. The first is the maintenance-free physical trap DriStep™ (WT1) strategically placed after combustion and the second is a chemical trap (WT2) that ensures the complete elimination of residual 1% of water.
Between the two traps, the flow of gases passes through the reduction furnace (RF) where NO_X  compounds are transformed into molecular nitrogen N₂.
Afterward, the CO₂ is trapped by the unique self-regenerating VELP CO₂ adsorbers.
At this point, elemental nitrogen is detected by the innovative thermal conductivity detector TCD LoGas™ which will send the data to DumaSoft^TM to calculate the amount of Nitrogen and Protein.

Product Details

 Specifications

Software

DUMASoft:
We have designed the NDA 702 to ensure maximum ease of use with the DUMASoft^TM intuitive User Interface. Control the instrument’s status for the main window, at a glance.
Setting up an analysis is extremely simple. The database and real-time graph are easily accessible and with the connection to a balance preparing a test is even faster.
The DUMASoft^TM contains an extensive library of preinstalled methods, multilingual support, and reporting functions with export to .csv, LIMS, and xls format.
Create and manage calibration curves, assign a name, and always be ready to use the most suitable one.
Run the complete Leak Test and choose whether to run it on the whole circuit or targeted by zone, after replacing a consumable for example.
The NDA 702 software can be upgraded with the optional 21 CFR Part 11 Package for Pharmaceutical, Cosmetic, and Food industry laboratories that require compliance with FDA regulations.

VELP Ermes:
NDA 702 thanks to its connectivity to VELP Ermes allows you to reduce routine operations thanks to the real-time monitoring of your elemental analyzer wherever you are, at any time.
NDA 702 is designed for continuous work with fully automated processes, VELP Ermes allows you to manage multiple instruments, consumables, workflows and to drastically reduce diagnostic time to ensure a superior level of service with maximum data security and protection of your data.
Immediate notifications and alerts will allow you to be always informed about the status of your analysis and thanks to the remote interruption you will have total control of your processes ensuring maximum security.
Access the database of your instrument in total security through the VELP Ermes platform and work with your colleagues creating and sharing reports from PC, smartphone and tablet.

Accessories

• Receive everything you need with a single code with 1000, 2000 and 4000 analysis  kit;
• Quartz and metal reactors and pre-packaged reactors;
• Ash inserts in 3 different materials to meet all application needs;
• The innovative Vcopper^TM to increase the life and efficiency of the reduction reactor;
• Superabsorbent Powder to easily manage the preparation of liquid samples;
• and much more…