Analysis and Quality Control
Accurate and traceable gas analysis results guaranteed
Our recommended gas and equipment solutions for your laboratory
Our experts will help you choose the right gas for your analysis and give you advice on the use of related equipment. In this way, it is possible to obtain reliable and high-quality measurement results in complete safety.
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Customer Processes We Support
Gas Chromatography
Gas chromatography (GC) is a separation method that allows a mixture to be broken down into different components. It is important to choose the right carrier gas - the most common are Hydrogen, Helium, Argon, Nitrogen and Air - with the right level of purity. This way you get accurate and consistent measurement results.
Each time a new gas cylinder is connected, the equipment should be checked and flushed. This is to eliminate any risk of contamination. If this procedure is not performed or is performed incorrectly, it may affect the quality of the measurement results.
Gas Spectroscopy and Spectrometry
Spectrometry examines the wavelengths of photons emitted by atoms or molecules as they transition from an excited state to a lower energy state. We pride our selves in supporting:
- Inductively Coupled Plasma (ICP) — also known as Atomic Emission Spectrometry (ICP-AES) or Optical Emission Spectrometry (ICP-OES)
- Atomic Absorption Spectroscopy (AAS)
- Nuclear Magnetic Resonance (NMR) Spectroscopy
- Ultraviolet (UV) and Infrared (IF) Gas Spectroscopy
Emission Control
Shipping industries, carmakers and heavy industries are regulated worldwide to carefully monitor and manage the release of carbon emissions and pollutants such as Sulfur Oxides and Nitrous Oxides into the atmosphere.
We offer specialised products and services for ambient air monitoring, emissions testing and emission control for Volatile Organic Compounds (VOC) and Greenhouse Gases (GHG).
Engine Emissions
Air Liquide's calibration mixtures and pure gases meet EPA (United States) standards, which make it perfect for stationary and dynamic tests using exhaust gas analysers or Portable Emissions Monitoring System (PEMS) for fuel consumption and pollutant emissions of engines (e.g. automotive CO₂ emissions).
These products are part of the ALPHAGAZ™ range, Air Liquide's portfolio of specialty gases for analytical applications.
Marine Emissions
The regulations adopted by the International Maritime Organization (IMO), Annex VI of MARPOL, require a gradual reduction of the main pollutant molecules in the coming years - sulfur oxides (SO₂), nitrogen oxides (NOₓ), carbon dioxide (CO₂), but also gases such as ammonia (NH₃), hydrocarbons (CₙHₘ) and other greenhouse gases (GHG) are of great importance.
These regulations require that analytical equipment be used to measure ship emissions and that the instrument be calibrated using recognised reference gases.
Industrial Emissions
Air Liquide manufactures gas mixtures in small portable and larger refillable cylinders for the calibration of emission measurement equipment such as continuous emissions monitoring systems (CEMS) and process analysers.
These gases are traceable to international standards and support QAL1, QAL2, QAL3 and AST calibration applications.
Stable Isotope Analysis
The ratios between stable isotopes in the same element form a kind of fingerprint. This makes it possible to trace the origin of foodstuffs and medicines among other applications. The technology is also useful for atmospheric measurements of greenhouse gases or for geochemical measurements to optimise oil and gas drilling.
Air Liquide's ALPHAGAZ™ reference gases provide you with a traceable and specific stable isotope fingerprint in a single gas (eg CO₂ or CH₄) or in a composite gas mixture that may contain multiple components.
These gases allow the user to reliably measure the concentration of the stable isotope relative to the concentration of the element's most common stable isotope (delta values). The gases are available in different cylinder sizes and are suitable for different research applications.
Food Authentication
To detect adulteration, control the origins of ingredients and guard against falsification, we offer isotopically characterised gases with high analytical accuracy, required compositions and targeted isotope signatures that improves the reliability of your isotopic analysis.
Oil and Gas
Maximise information derived from each well, reservoir or field for more accurate exploration and production development planning. Explore our unique standard product range of multi-component, natural gas calibration mixtures.
Medical Diagnostics
Breath analyses based on stable isotope ratio of key molecules are being researched for quick and accurate non-invasive disease diagnosis and monitoring. Whether you are a clinical laboratory, testing laboratory or an OEM, Air Liquide provides a range of mixtures for equipment qualification, in order to obtain more accurate diagnostics.
Environmental Research
For a more comprehensive understanding of pollution sources, Air Liquide has developed a range of reliable reference gases for isotope ratio measurements of Natural Air (with or without CO₂) in standard packaging with Stable Isotope delta ratios of C, O, H, N and S elements.
Why choose us
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Industry Leader
We are a global leader in gases, technologies and services for Industry and Health. -
Reliability
Our solutions are reliable, reproducible and in compliance with stringent and ever-evolving regulations. -
Expertise
Leverage our global network of industry experts tailored to your unique challenges. -
One-Stop Solution Provider
Access a comprehensive suite of products, supply modes, and services designed for your specific requirements. -
Extensive Infrastructure Network
Benefit from our robust production and filling infrastructure, including extensive pipeline networks. -
Focus on Quality
Expect nothing less than the highest standards in process and product quality. -
Sustainability
Embrace our solutions that support your highest performance while minimising environmental impact.