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Advanced Oxygen, Hydrogen & Nitrogen Analyzers from Qualitest

Oxygen, hydrogen and nitrogen analyzers measure the level of gas found in a given environment, improving both safety and efficiency in a wide range of industries. At Qualitest, we have developed advanced machinery to assist our clients across the world meet their unique testing requirements.

The presence of oxygen strongly influences the properties of copper and catalyst which makes a reliable and precise measurement of these elements an important part of the quality control process. Our Oxygen Analyzers are used for measuring oxygen in ferrous and non-ferrous metals, rare earth materials, alloy, and more. 

Here’s how our Oxygen/Hydrogen/Nitrogen analyzers work:

A graphite crucible is placed on the holder and the impulse furnace is closed by the pneumatic system. The sample of typically 1g is dropped into the loading mechanism after weighing. The outgassing phase starts the analysis cycle to clean the furnace from Oxygen and Nitrogen out of the air. The sample loading mechanism releases the sample into the now cleaned crucible. The Oxygen content of the sample reacts with the Carbon from the graphite crucible to CO and the Nitrogen content to elemental N2 gas at temperatures of about 2200°C. Both gases were transported by the Helium carrier gas to the oxidation furnace where Copper Oxide converts the CO to CO2. This CO2 concentration is analyzed by an infrared absorption detector and the Oxygen concentration is calculated. The Nitrogen is analyzed afterwards by a thermal conductivity detector.

All of this information may be hard to decode and you might need to discuss this with an expert. At Qualitest, we are happy to help answer any questions that you may have. Simply reach out to our sales team at

Qualitest, with its trusted supplier network, is well aware of the various testing requirements that may arise in different industries. Besides efficient logistics and a high level of standards, we guarantee the best prices as well. Our products are built to last and various government agencies, educational institutions, and private businesses have benefitted from our advanced state-of-the-art testing products.

For more information regarding our analyzers, click here.