Gas Analysis (EGA)
Evolved Gas Analysis (EGA) identifies and analyzes the gases released during thermal processes, providing valuable insight into material composition, reactions, and thermal stability.
EGA – Evolved Gas Analysis
Gas analysis / couplings (EGA)
By coupling the thermal analyzer (for example a thermobalance (TGA) or Simultaneous Thermal Analyzer (STA – TGA+DSC)) with the fast quadrupole mass spectrometer (QMS) or FTIR spectrometer (Fourier Transform Infrared), it is possible to detect gas evolution and identify the separated gas components in exact temporal correlation with the other thermal analysis signals.
With the unique pulse analysis, even quantitative gas analysis – with both QMS and FTIR – can be achieved.
Thanks to these couplings, Linseis offers extremely high-performance solutions for thermal analysis, including residual gas analysis.
EGA devices
➡️ Typical couplings in simultaneous analysis:
🔵 TG-DSC-MS (Thermogravimetry, Differential Scanning Calorimetry, Mass Spectrometer)
🔵 TGA-MS (Thermobalance coupled with Mass Spectrometer)
🔵 TG-DSC-GC/MS (Thermogravimetry, Differential Scanning Calorimetry, Gas Chromatography / Mass Spectrometer)
➡️ The thermal analyzer can be coupled to the spectrometer/chromatograph in various ways:
🔵 Heated transfer capillary (FTIR, GC-MS, GC, MS)
🔵 Sniffer coupling (GC-MS, GC, MS)
🔵 Optical in-situ observation (ELIF)
➡️ Analytical techniques for coupling with thermal analyzers Coupling can be performed using various gas analysis methods:
🔵 FT-IR Spectroscopy
🔵 Quadrupole Mass Spectrometry (QMS)
🔵 ELIF Spectroscopy (Excimer Laser-Induced Fragmentation Fluorescence)
🔵 Gas Chromatography (GC)
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