Agilent Technologies 990 User Manual

10 Micro GC Biogas Analyzers
CP-PoraPLOT U channel
138 Agilent 990 Micro GC User Manual
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 Figure 59.
If a sample contains hydrogen sulfide, the chromatogram resembles Figure 60.
Figure 59. The Universal Gas Calibration Standard analyzed on the CP-PoraPLOT U channel
Seconds
20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50
0.5
1.0
1.5
2.0
2.5
Composite Air Peak
Carbon Dioxide
Ethylene
Ethane
Acetylene
Propane
mV
Figure 60. A mixture with hydrogen sulfide analyzed on the CP-PoraPLOT U channel
Seconds
22 24 26 28 30 32 34 36 38 40 42 44 46 48 50
mV
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
Composite Air Peak
Carbon Dioxide
Ethylene
Ethane
Acetylene
Hydrogen Sulfide
Propane

Agilent Technologies 990 Specifications

General

Brand	Agilent Technologies
Model	990
Category	Laboratory Equipment
Language	English