Cp-Poraplot U Channel - Agilent Technologies 990 User Manual

10 Micro GC Biogas Analyzers

CP-PoraPLOT U channel

CP-PoraPLOT U channel
The CP-PoraPLOT U channel of the Biogas Analyzer is used to analyze carbon dioxide, ethane,
hydrogen sulfide and n-propane. This channel and the sample inlet are Ultimetal deactivated
which results in improved performance for hydrogen sulfide analysis.
The chromatogram obtained from the Universal Gas Calibration Standard with the CP-PoraPLOT
U is shown in
If a sample contains hydrogen sulfide, the chromatogram resembles
mV
2.5
2.0
1.5
1.0
0.5
20 22 24 26
Figure 59. The Universal Gas Calibration Standard analyzed on the CP-PoraPLOT U channel
mV
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
22 24 26
Figure 60. A mixture with hydrogen sulfide analyzed on the CP-PoraPLOT U channel
138
Figure 59.
28 30 32 34
Seconds
28 30 32 34
Seconds
36 38 40 42 44
36 38 40 42
Figure 60.
46 48 50
44 46 48 50
Agilent 990 Micro GC User Manual