Agilent Technologies 990 - Page 149

11 Micro GC Natural Gas Analyzer
Natural Gas Analyzer A and the A Extended Version
Agilent 990 Micro GC User Manual 149
Analysis of the Universal Gas Calibration standard results in a chromatogram similar to Figure 67.
Analysis of a sample containing heavier hydrocarbons up to n-nonane results in a chromatogram
similar to Figure 68.
If a sample contains hydrocarbons up to n-nonane ensure that the total run time is increased
sufficiently to detect all hydrocarbons on this channel.
Figure 67. Universal Gas Calibration standard analyzed with the 6 meter CP-Sil 5 CB channel on Analyzer A
Seconds
10 20 30 40 50 60 70 80 90
mV
0.0
2.5
5.0
7.5
10.0
Propane
n-Butane
n-Hexane
n-Heptane
acetylene
Figure 68. Sample containing hydrocarbons up to n-nonane analyzed with the 6 meter CP-Sil 5 CB channel on Analyzer A
Seconds
0
50 100 150 200 250 300 350 400
mV
0
10
20
30
Propanen-Butane
n-Pentane
n-Hexane
n-Heptane
n-Octane
n-Nonane