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                                            Air Liquide
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                                            Analysis and quality control

                                            Analytical laboratories use gases to run their lab instruments. These gases must be very high or ultra high-purity gases to ensure accurate analyses and protect the instruments. Our extensive expertise providing premium specialty gases and services for analyses and quality controls allows us to meet these needs.

                                            Analysis and quality control at a glance

                                            Analytical laboratories conduct analysis and quality controls on raw materials, end products and industrial emissions to detect the trace and quantity of different components and impurities.

                                            Analytical gases used commonly to operate lab instruments and analyzers include the following:

                                            • Pure gases such as helium, argon, nitrogen, hydrogen, air and oxygen, which are used as carrier gases to vehicle sample to detector. They need to be of very high purity so as not to affect the analytical results or the analytical equipment

                                            • Calibration gas mixtures, which contain from 2 to dozens components, with very precise dosages and high purity. They act as the reference gases used to calibrate the equipment itself

                                            Our gas solutions

                                            Air?Liquide provides a large range of quality analytical gases including pure gases and mixtures, plus the appropriate gas handling equipment and services. They are available on catalogue or produced on demand.

                                            Our customers are private and public companies, universities, independent analytical laboratories and research centers, all working in a wide array of industries:

                                            At Air?Liquide, we have drawn on our extensive experience in the production of pure gases and mixtures with high-end specifications to develop our three premium brands:

                                            • ALPHAGAZ?: our worldwide range of specialty pure gases and mixtures for analytical applications
                                            • CALGAZ?: a range of calibration mixtures for safety detection and breath analyzer applications delivered in small portable cylinders

                                            All our products offer absolute accuracy and traceability, guaranteed by top certificates and accreditations.

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