5 Micro GC Channels
MES (NGA) and CP-WAX 52 CB columns
72 Agilent 990 Micro GC User Manual
MES (NGA) and CP-WAX 52 CB columns
Table 22 MES (NGA) and CP-WAX 52 CB instrument parameters
Parameter MES 10 M Heated (NGA) CP-WAX 52 CB 4 M Heated
Column temperature 90 °C 60 °C
Injector temperature 110 °C 110 °C
Column pressure 70 kPa (10 psi) 150 kPa (21 psi)
Sample time 30 s 30 s
Injection time 500 ms 40 ms
Run time 120 s 35 s
Detector sensitivity Auto Auto
Peak 1 Nitrogen Balance Nitrogen 0.75 %
Peak 2 n-Decane 11.2 ppm Acetone 750 ppm
Peak 3 MES 14. 2 ppm Methanol 0.15 %
Peak 4 ________ Ethanol 0.30 %
Helium Balance
-500
0
500
1000
1500
2000
2500
3000
3500
4000
mV MES 10 m heated (NGA) CP-WAX 52 CB 4 m heated
Seconds
1
0
20 40 60 80 100 120 140
-0.3
0.1
0.5
0.9
2
3
80 90 100 110 120 130
-2
3
8
13
mV
Seconds
1
4
3
2
1 6 11 16 21 26 31 36