Agilent Technologies 990 User Manual

10 Micro GC Biogas Analyzers
CP Sil 5 CB channel
Agilent 990 Micro GC User Manual 139
CP Sil 5 CB channel
The CP-Sil 5 CB channel of the Biogas Analyzer Extended is used to analyze the hydrocarbon up to
n-heptane. Hydrocarbons that are specified for this analyzer are i-butane, n-butane, neo-pentane,
n-pentane, iso-pentane, n-hexane, and n-heptane. The Universal Gas Calibration Standard does not
contain all these hydrocarbons. A reference chromatogram is included in this manual for the
missing components.
Analyzing the Universal Gas Calibration Standard with the CP-Sil 5 CB results in the
chromatogram shown in Figure 61.
If a hydrocarbon mixture up to n-hexane is used, the chromatogram resembles Figure 62.
For tuning the backflush time, please refer to “Tuning the backflush time on a HayeSep A
channel” on page 78.
Figure 61. The Calibration Standard analyzed on CP-Sil 5 CB channel
Seconds
10 20 30 40 50 60 70 80 90 100 110 120 130
mV
0
1
2
3
4
5
Propane
Methyl Acetylene
n-Butane
n-Hexane
n-Heptane
Figure 62. A hydrocarbon mixture up to n-Hexane analyzed on the CP-Sil 5 CB channel
Seconds
15 20 25 30 35 40 45 50 55 60
mV
0
50
100
150
200
250
300
Composite Air peak Ethane Propane
i-Butane
n-Butane
neo-Pentane
n-Pentane
i-Pentane
n-Hexane

Agilent Technologies 990 Specifications

General

Brand	Agilent Technologies
Model	990
Category	Laboratory Equipment
Language	English