Hiden - Model HPR-40 DEMS -Membrane Inlet Mass Spectrometer (MIMS)
The Hiden HPR-40 DEMS is a bench top or mobile cart mounted module for analysis of dissolved species in electrochemistry. The system is modular and adaptable. The system includes two differential electrochemical mass spectrometry ‘DEMS’ cell inlets, designed for material/ catalysis studies, cell type A, and electrochemical reaction studies, cell type B.
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®
- Analysis of dissolved species with mass range 200 amu (300 amu option)
- Vitreous Carbon – User coatable working electrode
- Replaceable nanoporous membrane
- 4 Ports for additional electrodes
- Interface to the Hiden HPR-40 DSA mass spectrometer
For in situ mass resolved determination of gaseous or volatile electrochemical reactants, reaction intermediates and products in real time.
- Mass range: 200 or 300 amu
- DEMS inlets:
- DEMS Cells:
- Type A – Single thin layer cell
- Type B – Dual thin layer cell
- OEMS – On line Electrochemical Inlet options
- Sensitivity: 5X10-14 mbar
- Inlet options:
- Microflow inlet for OEMS
- DEMS direct probe
- QIC inlet for gas reaction studies