Carbon and nitrogen analysis - a1 Envirosciences

In one device: Determination of carbon and nitrogen

Simultaneous: Fast and simultaneous carbon-nitrogen analyses

Standard-compliant: works according to official reference methods

24/7: designed for continuous operation throughout the year

Efficient and powerful: analyze up to 117 samples in succession quickly and efficiently thanks to the electronic autosampler

Carrier gas: helium or argon

Possible samples: solid or liquid samples, now also with direct sample feeding for liquid samples

Fast results: in just 5 minutes

Comprehensive training: we take care of training your employees on the CN 802

Also there for you after the purchase: many questions only arise during work. We are here to answer all your questions about the device and your measurement

Easy cleaning and maintenance: thanks to the robust design of the CN 802

A wide range of applications: for example in the environment, agriculture, chemicals, food and animal feed industries

Application

Carbon and nitrogen elemental analyzer

The CN 802 is a robust and flexible combustion analyzer designed according to official reference methods (link to bottom) for carbon and nitrogen determination in various industries such as environmental, agricultural, chemical, food and feed.

What is the advantage of the CN 802?

The CN 802 is operated completely independently by the CNSoft software – supervision by laboratory staff is not necessary. In just 5 minutes it provides simultaneous results for::

Total carbon – TC
Total nitrogen – TN
C/N ratio

This fast and highly sensitive C/N elemental analyzer operates continuously, 24 hours a day, 7 days a week, 365 days a year, with simple regular maintenance. It eliminates the need for harsh chemicals or time-consuming analytical procedures, making it ideal for high-throughput laboratories. Just prepare your sample and go!

Samples
The CN 802 allows you to analyze a wide range of sample types, including solid, semi-solid and liquid samples.

Application
The CN 802 guarantees precise results and excellent reproducibility with:

One measuring range for carbon of
0.003 mg m to 150 mgC;
A measuring range for nitrogen of 0.001 – 200 mg N abs.
A relative standard deviation (RSD) of less than 0.5 % (EDTA).

It can process up to 117 samples and offers exceptional efficiency. This is made possible by the electronic autosampler and the direct connection to the PC balance for the transfer of weighing results.

Laboratories have the option of choosing between helium and argon as the carrier gas.

Efficiency in your laboratory
The CN 802 analyzes samples of up to 1 g and thus reduces the cost per analysis through combustion technology and the use of consumables with an extended service life.

The maintenance-free, non-dispersive HighSensIR detector guarantees consistent performance over time for the analysis of high and low carbon samples
The CN 802 ^LoGasTMTCD works without reference gas and guarantees the lowest gas consumption on the market
Optimized combustion results in very low oxygen consumption: using a pre-installed method, the device accurately doses the gas to ensure complete sample combustion based on their weight and matrix, saving resources
The ^DriStepTM physical water sampler not only requires no maintenance, but also removes 99% of water without the use of chemicals
Installation of the CN 802 is straightforward and its compact design saves valuable space on your lab bench.

Combustion technology drastically improves productivity and eliminates the use of chemicals compared to wet chemical N/protein determination methods.

Standard methods

The CN 802 works according to the following official reference methods:

ISO 10694; EN 16168; EN 15936; ISO 20236; AOAC 993.13; ISO 20620; ISO 13878; EN 13654-2, EPA Method 440.0, etc.

Measuring method

Functionality

The sample is purged with a carrier gas and enters the combustion reactor, where it is converted into its elemental compounds at high temperature (over 1000 °C).
Water separation takes place in 2 steps. The combustion gases enter the maintenance-free physical trap ^DriStepTM (WT1), which is strategically placed after combustion and captures 99% of the water. Secondly, a chemical trap (WT2) ensures the complete removal of the remaining 1% of water.
The combination of high temperature and the exclusive ^VcopperTM reduces nitrogen dioxide in the reduction furnace to molecular nitrogen.
The VELP HighSensIR detector enables the analysis of an extremely wide carbon concentration range, from just a few ppm up to 150 mg absolute carbon, from micro to macro applications.
Then auto-regenerative CO2 absorbers capture carbon dioxide so that the exclusive TCD (Thermal Conductivity Detector) can detect the nitrogen content.

CNSoft™ software

The ^CNSoftTM software controls and operates the CN 802 analyzer. With an easy-to-use interface, the software provides comprehensive information at a glance, including results, database and instrument status.

Users have access to an extensive library of pre-installed methods and can create custom methods. Easy creation of calibration curves for carbon and nitrogen allows testing of any sample matrix without memory effect.
For example, after consumable replacement, perform a comprehensive leak test either for the entire circuit or targeted by zone.
The CN 802 software can be updated with the optional 21 CFR Part 11 Package for pharmaceutical, cosmetic and food industry laboratories that require compliance with FDA regulations.

Smart Lab solution

The CN 802 optimizes routine workflows by connecting to the VELP Ermes cloud platform, enabling real-time monitoring of your elemental analyzer from anywhere, anytime.

Designed for seamless, continuous operations with fully automated processes, the platform enables the management of multiple instruments, consumables and workflows and significantly reduces diagnostic time. In fact, you can review historical records of instrument activity and retrieve valuable troubleshooting information, as well as provide access to our experts for timely and remote technical and analytical support. This ensures a superior level of service while maximizing data security and protection.

Immediate notifications and alarms keep you constantly informed about the status of your analyses. Remote interruption capabilities give you complete control over your processes and ensure maximum security.

Securely access your instrument’s database via the VELP Ermes platform and collaborate with colleagues to create and share reports seamlessly from your PC, smartphone or tablet.

Elements

Carbon, nitrogen

Key data

Method of analysis: Determination of carbon and nitrogen using the combustion method
Analysis time: 3/5 minutes
Detector: N = TCD (Thermal Conductivity Detector), C = HighSensIR Detector (Non-Dispersive Infrared)
Weight of the sample: Up to 1 g
Autosampler type: Electronic
Capacity of the autosampler: Up to 4 disks, 30 positions each (up to 117 samples)
Reproducibility (RSD): < 0.5% for EDTA standards approx. 100 mg
Recovery: > 99.5%
Detection range C: 0.003 up to 150 mg abs. (or 100 %)
Detection range N: 0.001 up to 200 mg abs. (or 100 %)
Combustion temperature: 1100 °C / 2012 °F
Carrier gas: Helium or argon (grade 4.5)
Combustion gas: Oxygen (grade 4.5)
Connectivity: optional Ermes Cloud Platform via Wi-Fi or LAN, connected to a PC
Interfaces: USB
Weight: 54 kg
Dimensions (WxHxD): 655x510x410 mm (H 690 mm with autosampler)
Complies with 21 CFR Part 11: Yes, optional package available

FAQ

Which companies is the CN 802 suitable for?

For various industrial sectors such as the environment, agriculture, chemicals and the food and animal feed industry.

What does the CN 802 measure?

The CN 802 analyzes samples for carbon and nitrogen.

Which samples can the CN 802 measure?

With the CN 802 you can measure carbon and nitrogen in organic matrices.

I have never worked with the device before. How can I learn how to work with the CN 802?

After installing your CN 802, our service team will be available to provide you with detailed product training. Most questions will arise as you work, so we will also be able to help you with any questions that arise at a later date – at your premises or flexibly via an online meeting.

How is the CN 802 controlled?

The CN 802 is fully controlled via the CNSoft software.

What reference methods does the CN 802 use?

The CN 802 works according to the following official reference methods:

ISO 10694, EN 16168, EN 15936, ISO 20236, AOAC 993.13, ISO 20620, ISO 13878, EN 13654-2, EPA Method 440.0, etc.

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CN 802

Carbon and nitrogen elemental analyzer

Application

Measuring method

FAQ

Advice and contact

Consulting process

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Products

Industries

Service

The company

Termine 2025

Dates 2025