Agilent 7890B GC & Hiden Analytical HPR-40 DEMS

Gas Chromatography - Differential Electrochemical Mass Spectrometry (GC-DEMS)

Analytical technique allowing separation and in situ mass resolved determination of gaseous or volatile reactants, reaction intermediates and products from electrochemical reactions

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Detailed Description

The Agilent 7890B GC is the world’s most widely used GC system. It features accurate temperature controls (+4°C to 450°C) and precise injection systems, plus enhanced Electronic Pneumatic Control modules for best retention times. This is coupled with a Hiden Analytical HPR-40 DEMS, which scans the electrochemical potential and applies mass spectrometry to analyse the products. Typical scanning speeds are around 1 mV/s with a typical scanning range of 0 to -1.5V.

Uses/Applications

GC-DEMS is an analytical technique that allows the separation and in situ mass resolved determination of gaseous or volatile reactants, reaction intermediates and products from electrochemical reactions. Hiden’s quadrupole mass spectrometer systems address a broad application range in: vacuum, gas, plasma and surface science.

• Type A DEMS cell for materials/catalysis studies
• Type B DEMS cell for electrochemical reaction studies
• Mass ranges: 1-200 amu
• Sensitivity: 100% to 100 ppb subject to spectral interference
• Speed: up to 650 measurements/second
• Response time: <1 s (dependant on flow rate)
• Detector: Dual Faraday/Electron Multiplier