Appendix IV: Mass spectrometry - - Spectroscopy
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Appendix IV: Mass spectrometry

Volume 29, Issue 5

Manufacturer: Hiden Analytical Ltd
Product name: QGA Atmospheric Gas Analysis System
Mass spectrometer
New this year: The new Hiden QGA Professional gas/vapor analysis software
Used for: Lab applications
Software: QGA Professional / MASsoft 7 Professional; may be used in other equipment, compatible with other manufacturers' equipment
Special features: Provides real-time continuous and quantitative analysis of gas mixtures comprising up to 16 species and is now available for operation with all Hiden gas analysis systems.
Suggested applications: High purity gas analysis, fermentation, fuel cells, gas production and storage, environmental monitoring
Primary benefits: Appearance potential mass spectrometry, fast response times – less than 300 ms, acquisition speed up to 500 measurements/s, Hiden QIC (quartz inert capillary) sampling interface samples from 100 mbar to 2 bar

Manufacturer: Markes International Ltd.
Product name: Select-eV
Mass spectrometer
New this year: New variable-energy electron ionization for GC–MS
Special features: No loss in sensitivity for fast and accurate compound identification
Used for: Lab analysis
Unique features: Source can change the energy of ionizing electrons; this allows the production of reference-quality electron ionization mass spectra with conventional full-fragmentation patterns. Energies can be varied anywhere from standard 70 eV down to 10 eV without loss in sensitivity; sometimes signal-to-noise ratios of many compounds are increased at lower energies.

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