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How do I avoid water saturation when carrying out large-volume sampling of humid air?

To avoid water saturation of your analytical system, the simplest solution is to use only hydrophobic sorbents in your sampling tubes, such as Carbograph 2TD, which typically retains less than 1 mg on a standard tube and has a retention volume that is barely affected by the presence of water. Application Note 005 contains more information on the range of sorbents offered by Markes.

However, in some cases the use of strong, less hydrophobic, sorbents is unavoidable due to the nature of the compounds being studied. Application Note 026 gives more detail on the method parameters that can be used to manage high levels of water within samples and still get reliable results.

UK
UK
Markes International Ltd
Gwaun Elai Medi-Science Campus
Llantrisant
RCT
CF72 8XL, UK
Tel: +44 (0)1443 230935
USA (East)
USA (East)
Markes International, Inc
11126-D Kenwood Road
Cincinnati
Ohio 45242
USA
Tel: 866-483-5684 (toll-free)
USA (West)
USA (West)
Markes International, Inc
2355 Gold Meadow Way
Gold River
California 95670
USA
Tel: 866-483-5684 (toll-free)
Germany
Germany
Markes International GmbH
Schleussnerstrasse 42
D-63263 Neu-Isenburg
Frankfurt
Germany
Tel: +49 (0)6102 8825569
Part of Schauenburg International
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