Gow-Mac 75-810-AR, Operating Manual

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GOW-MAC Instrument Co.
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Summary of Argon Purifier Performance in Removing Impurities
Instrument : GOW- MAC Series AR710 GC
Detector : HFADD
Detector Current : 47 mA
Column : 10’ x 1/8” Molecular Sieve 13X
Oven Temperature : 80°C
Sample Gas : 2 ppm atmospheric gases in Argon
Sample Flow : 60 ml/min
Carrier Gas : Argon
Carrier Flow : 40 ml/min
Purifier Operating Temperature : 400°C (Factory pre- set)
Impurities Responses (mV.s) Concentration (ppm)
H2 259.943 0.215
O2 0.000 0.000
N2 0.000 0.000
CH4 58.359 0.034
CO 0.000 0.000
Table 2: Remaining Concentration of Impurities with Argon Purifier at 400°C
Key Findings:
1. O2, N2, and CO are totally removed.
2. H2 and CH4 are reduced to ppb level.