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5
Micro GC Channels
HayeSep A 40 cm heated column
HayeSep A 40 cm heated column
The HayeSep A column separates oxygen, methane, carbon dioxide, ethane, acetylene, ethylene,
and selected sulfur gases. Nitrogen coelutes with oxygen. Components with a higher molecular
weight than propane have long retention times on this column.
Maximum allowable column temperature is 160 °C.
WAR N IN G
Table 19 HayeSep instrument parameters
Parameter
Column temperature
Injector temperature
Column pressure
Sample time
Injection time
Run time
Detector sensitivity
Peak 1
Peak 2
Peak 3
mV
345
295
245
195
145
95
45
-5
0
Agilent 990 Micro GC User Manual
HayeSep A 40 cm heated
2
1
10
20
30
HayeSep A 40 cm Heated
50 °C
110 °C
150 kPa (21 psi)
30 s
40 ms
60 s
Auto
Nitrogen 0.77 %
Methane balance
Ethane 8.1 %
3
40
50
60
70
Seconds
69
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