Dissolved Gas Measurement with Membrane-Assisted MS

The Hiden HPR-40 family of membrane separator-assisted mass spectrometers continues to expand to meet the needs of new investigative and processing techniques requiring measurement of dissolved gases in aqueous solution. New additions include an adaptable cuvette-style sampling cell for measurement of photo-sensitive reaction products and an electro-chemical cell for characterisation of electro-catalytic activity.

The semi-permeable membrane provides an efficient water barrier yet preferentially transmits gaseous species, enabling real-time mass spectrometric analysis of dissolved gases and vapours. Separators are available for in vivo immersion in active media, for static samples and for flow-through and recirculatory  applications. Options include integrated media agitation, precise thermal regulation of the active sample and programmable multi-stream selection for multiple samples.

The compact mass spectrometer module is benchtop and cart-mounting compatible, with comprehensive control and data analysis programmes for both automated and manual operation. Multiple sampling lines can be accommodated for sequential multi-media sampling, the QIC BioStream variant currently operating with up to 80 sample streams. A custom-design service is available to assist with interface design for specific R&D projects.

Hiden Analytical Ltd, +44 1925 445225, info@hiden.co.uk, www.hidenanalytical.com.