HPR-40 DEMS

Differential Electrochemical Mass Spectrometry (DEMS) is an analytical technique that combines electrochemical half-cell experimentation with mass spectrometry. It allows in situ mass resolved determination of gaseous or volatile electrochemical reactants, reaction intermediates and products in real time. Hiden Analytical offer a range of DEMS cells with electrolyte/nanoporous sampling interface to the Hiden HPR-40 DSA Mass Spectrometer.

For applications where online electrochemical MS, OEMS, from an existing cell or reactor is required, a range of standard inlet options is available offering both evolved off-gas and dissolved species analysis solutions. Electrochemical cells that can be interfaced to the Hiden HPR-40 DEMS system include selected models from: Redoxme AB, and EL-Cell®

DEMS cell – A differentially pumped mass spectrometry inlet for in situ mass resolved determination of gaseous or volatile electrochemical reactants, reaction intermediates and products in real time.

The system includes:

• Quadrupolemass spectrometer system from the RGA series or high performance 3F series, with mass range options 200 or 300 a
• MASsoftProfessional PC softwar
• Massspectrometer analyser manifold and UHV pump set.
• DEMScell inlet kit including two DEMS cells, differential pumping, isolation valve with interlock and variable leak val
• Totalpressure gauge and interlocks to provide protection for the mass spectrometer in case of over pressur
• Integrationeither as a bench mounted module or a mobile cart.