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The World’s First CHNS Macro Elemental Analyzer with Crucible Technology

A new benchmark in CHNS macro elemental analysis. The EMA 402XL expands Velp’s elemental analyzer portfolio with a fully automated, high-throughput solution for extra-large samples. Discover more!
The World’s First CHNS Macro Elemental Analyzer with Crucible Technology

Elemental analysis provides detailed information on the composition of organic and inorganic materials, with applications across research, environmental studies, agriculture, petrochemistry, and industrial quality control.

Determining carbon, hydrogen, nitrogen, and sulfur (CHNS) can be particularly challenging for heterogeneous or inhomogeneous samples, which may vary in particle size, density, or moisture content. Analyzing only small portions of such samples may not capture the overall composition, leading to inconsistent results. Increasing the sample size helps to raise the representativeness and improve reproducibility across complex matrices.

The EMA 402XL is designed to overcome these challenges. Its automated sample handling with crucible technology enables laboratories to process larger weights efficiently while maintaining precise and accurate CHNS determinations.

Get in contact with our experts to discover how this solution can support your analytical workflows and help you address complex sample matrices with confidence.

Advanced Solution for CHNS Analysis on Macro Samples

Advanced Solution for CHNS Analysis on Macro Samples
The EMA 402XL combines high-throughput automation, innovative crucible technology, and precise detection to simplify CHNS analysis for complex samples. Its reusable ceramic crucibles allow direct measurement of larger, heterogeneous materials, improving representativity and reproducibility while reducing sample preparation and waste.

Automation further streamlines laboratory workflows: a 100-position autosampler handles sequential and non-sequential analyses, from sample loading to ash removal, with minimal operator intervention. The vertical combustion system and advanced dual detectors ensure complete oxidation and reliable quantification of Carbon, Hydrogen, Nitrogen, and Sulfur, even in challenging matrices.

Designed for continuous operation, the EMA 402XL also offers intuitive software controls and smart connectivity, enabling real-time monitoring, data management, and remote supervision, all while maintaining low running costs and robust, long-term performance.

Comprehensive Applications for Complex and Heterogeneous Matrices

Comprehensive Applications for Complex and Heterogeneous Matrices
The EMA 402XL supports laboratories across environmental, agricultural, chemical, petrochemical, and waste management sectors. Its ability to analyze larger, heterogeneous samples makes it particularly effective for soils, sediments, and organic amendments in environmental and agro-science research, where material variability can otherwise affect accuracy. 

In chemical and petrochemical laboratories, the instrument delivers consistent CHNS measurements on complex products such as fuels, oils, coal, coke, and solid mineral or bio-based materials. The analyzer is also well-suited to waste management applications, enabling reliable characterization of municipal, industrial, and organic wastes.

In addition to CHNS determination, the EMA 402XL allows laboratories to monitor oxygen consumption during combustion, enabling the calculation of Total Oxygen Demand (TOD) and providing further insight into sample composition and energy content. 

Why the EMA 402XL is Different

Why the EMA 402XL is Different
■ Consistent results on macro samples
The high-temperature vertical combustion system ensures complete oxidation of complex samples, helping laboratories achieve reproducible CHNS results.

■ Simplified sample preparation and handling
Reusable ceramic crucibles and automated vertical sample introduction reduce manual operations, improve safety, and ensure representative measurements.

■ High throughput with minimal operator intervention
A 100-position sequential and non-sequential autosampler supports unattended operation, from sample loading to ash removal, allowing laboratories to increase productivity.

■ Reliable detection and standard compliance
Dedicated detectors for CHNS deliver accurate quantification while ensuring full compliance with international ISO and ASTM standards.

■ Designed for continuous use and easy maintenance
Durable ceramic components and front-access maintenance simplify routine servicing and minimize downtime.

Watch the exclusive premiere presentation

Join the premiere webinar to see how innovative crucible technology, smart automation, and advanced detection redefine productivity and reliability in routine and high-demand laboratories.
 
Watch Now
12/02/2026
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