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Thermal Programmed Desorption (TPD)

(Kopie 2)

Desorption spectrum of a steel sample (1.4301) within the temperature range from 550°C to 650°C

With Thermal Programmed Desorption (TPD) the used sample is gradually heated. The desorbates released in this way are characterised using a mass spectrometer. This not only enables the determination of the atoms and molecules that are desorbed from the sample, but also the energy required in order for this to happen. For example, a temperature range from 100 K to 1273 K can be covered. TPD is therefore exceptionally well suited for studying the gas emission behaviour of the most varied of materials under thermal load. This also enables the qualitative assessment of educts for chemical surface reactions.


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