Wolfson Atmospheric
Chemistry Laboratories

Innovation Way
University of York
Heslington
York, YO10 5DD

General Enquiries

Jenny Hudson-Bell
wacl@york.ac.uk
01904 322609

WACL can design and build customised dynamic dilution delivery systems that deliver known quantities of reference gas materials over the part per trillion to part per million range.

These calibration systems allow complex mixtures of reference compounds to be blended and delivered at trace levels in a controllable gas stream or either air, nitrogen or any other stable balance gas. Our systems can work with unstable/labile compounds, and do not require the long equilibration periods associated with permeation calibration sources.

Potential applications:

Creation of trace gas VOC calibration mixtures blending up to 10 compounds mixed in varying proportions.

Instant generation of mixtures of VOC for immediate use (removes any degradation of reactive species when stored in cylinders for extended periods).