Elemental Analyzers from VELP Scientifica: Precision and Efficiency
VELP Scientifica's EMA 502, CN 802, and NDA 702 represent the pinnacle of elemental analysis, offering unmatched accuracy, reliability, and user-friendly operation. These cutting-edge instruments are designed to meet the demands of modern laboratories across diverse industries.
With their innovative features, such as automated workflows, robust software, and compliance with international standards, VELP's elemental analyzers provide laboratories with the tools needed for fast, accurate, and efficient elemental analysis.
EMA 502: The all-in-one CHNS/O solution to broaden your analytical potential.
EMA 502 Elemental Analyzer CHNS-O is the accurate and reliable solution for the determination of carbon, hydrogen, nitrogen, sulfur, and oxygen in various industrial sectors such as pharma and life science, organic chemistry, petrochemistry and energy, environmental, agronomy, food & feed.
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CN 802: Fast and simultaneous Carbon Nitrogen analyses.
The CN 802 is a robust and flexible combustion analyzer, that works following official reference methods for the determination of carbon and nitrogen in many industrial sectors such as agriculture, environmental, food & feed, and chemical.
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NDA 702: The perfect solution to maximize your productivity.
NDA 702 Dumas elemental analyzer produces N/Protein results in just 3 to 4 minutes. It 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.
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Fast and simultaneous Carbon Nitrogen analyses
The CN 802 is a robust and flexible combustion analyzer, that works following official reference methods for the determination of carbon and nitrogen in many industrial sectors such as agriculture, environmental, food & feed, and chemical.
The proprietary CNSoftTM software powers the CN 802 and produces unsupervised, simultaneous results in 5 minutes of:
- TC: Total Carbon
- TOC, TIC: Total Organic and Inorganic Carbon (after acidification)
- TN: Total Nitrogen
- C/N Ratio
The CN 802 is a safe analyzer that does not require aggressive chemicals or time-consuming analysis steps. Just prepare your sample and walk away!
Just set your next analysis and access a wealth of information from the sample!
CN 802 Working Process
The sample is purged with a carrier and drops down into the combustion reactor where it is converted into its elemental compounds at a high temperature (above 1000°C).
Water separation is performed in 2 steps. The combustion gases are carried to the first maintenance-free physical trap DriStepTM (WT1), strategically placed after combustion, trapping 99% of water. Secondly, a chemical trap (WT2) ensures complete removal of the remaining 1% of water.
The combination of high temperature and the exclusive VcopperTM reduces nitrogen dioxide to molecular nitrogen inside the reduction furnace.
The VELP HighSensIR detector enables analysis of an extremely wide carbon concentration range, from just a few ppm up to 150 mg of absolute carbon, from micro to macro applications.
Then, Auto-regenerative CO2 absorbers trap carbon dioxide, allowing the exclusive TCD (Thermal Conductivity Detector) to detect the Nitrogen content.
The all-in-one CHNS/O solution to broaden your analytical potential
EMA 502 Elemental Analyzer CHNS-O is the accurate and reliable solution for the determination of carbon, hydrogen, nitrogen, sulfur, and oxygen in various industrial sectors such as pharma and life science, organic chemistry, petrochemistry and energy, environmental, agronomy, food & feed.
EMA 502 [ref VEL-F30800100] Elemental analyzer for Carbon, Hydrogen, Nitrogen, Sulphur determination with option for Oxygen includes:
Start-up kit, cables for balance & PC, software, 30-position disc autosampler, kit for approx. 1000 analyses, Argon option, 1-year ERMES license
CHNS-O analysis with EMA 502 Elemental Analyzer helps determine the structure of an unknown compound, as well as evaluate the structure and purity of a synthesized compound.
Working in accordance with official reference methods, EMA 502 performs CHNS determination as well as Oxygen determination in just a few minutes, without requiring any add-ons or additional external modules.
EMA 502 is a safe analyzer that does not require aggressive chemicals or time-consuming analysis steps.
Just set your next analysis and access a wealth of information from the sample!
EMA 502 Elemental Analyzer working principle
The CHNS analysis starts with the combustion of the sample inside the VELP combustion furnace at a temperature higher than 1000°C to obtain elemental compounds.
VELP Vcopper™, a formulation of highly active copper powder, is placed in the lower part of the reactor to help the reduction of NOX into N2.
The flow then reaches the gas chromatographic column oven, which ensures homogenous and modular temperature leading to a complete separation of all the elements for the final detection by TCD.
When analyzing Oxygen, the sample undergoes pyrolysis inside the furnace and then passes through a chemical trap where all impurities are absorbed, before reaching the gas chromatographic column and the TCD for detection.
The perfect solution to maximize your productivity
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 DUMASoftTM 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!
NDA 702 Nitrogen Analyzer Working Principle
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 NOX compounds are transformed into molecular nitrogen N2.
Afterwards, 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 DumaSoftTM to calculate the amount of Nitrogen and Protein.
Elemental Analysis and the Dumas Method
The Dumas method, also known as the combustion method, is a primary method of determination of Nitrogen and Protein ensuring fast results, ease of use, and safety. However, it is considered an alternative to the classical Kjeldahl method. In fact, both of the methods are validated by different international organizations: Kjeldahl is officially recognized by AOAC, EPA, DIN, ISO, etc., whilst Dumas by AOAC, AACC, ISO, DIN, ASBC, AOCS, OIV, etc. Nevertheless, in some countries, the local guidelines recommend one method rather than the other.
The Dumas method for nitrogen determination, developed in 1831, is older than the Kjeldahl, 1883, but more convenient in many aspects such as speed, safety, cleanliness, productivity, and cost per analysis.
The problem in the past was that it was not easy to reproduce the conditions required by the Dumas method and for this reason, the Kjeldahl technique took the lead and became considered as the classical method for nitrogen/protein determination.
Nowadays, thanks to steps forward in technology, the Dumas nitrogen determination is becoming more widespread.
