• Dissolved Gas Measurement with Membrane-Assisted MS

Environmental Laboratory

Dissolved Gas Measurement with Membrane-Assisted MS

Jul 29 2014

The Hiden (UK) 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 innovative 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 programs 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 and D projects.


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