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Gas Mass Spectrometer GV-5400 TEXT SIZE: A A A

 

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  1. Resolution
    a. High Mass Faraday: 228.1
    b. Axial Collector (Multiplier): 682.3
    c. Axial Collector (Daly): 679.6
  2. Background
    Mass 36 Argon: 6.519×10-15ccSTP
  3. Sensitivity
    Helium: 3.9725×10-4A/Torr
    Argon: 1.1018×10-3A/Torr
  4. Static vacuum level
    Rise of 40Ar signal: 1.613×10-14ccSTPmin-1
  5. Abundance sensitivity
    Tail contribution at 39Ar from 40Ar at 10-7/Torr: 0.136ppm
  6. Peak side stability
    Drift is 60.87ppm in field at mass 40 over 30 minutes
  7. Prep Bench
    Rise of 40Ar signal: 4.20×10-13ccSTPmin-1
  8. Peak top flatness
    High collector: 40Ar peak to be flat to better than ±1 in 103 over 300 ppm in mass

  Multiplier collector: 40Ar peak to be flat to better than ±1 in 103 over 150 ppm in massDaly collector: 40Ar peak to be flat to better than ±1 in 103 over 150 ppm in mass

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