Agilent Technologies 990 User Manual

5 Micro GC Channels
Molsieve 5Å columns
Agilent 990 Micro GC User Manual 65
Molsieve 5Å columns
The Molsieve 5Å column is designed to separate: hydrogen, carbon monoxide, methane, nitrogen,
oxygen, and some noble gases. Higher molecular weight components have much higher retention
times on this column.
Table 15 Molsieve 5Å instrument parameters
Parameter 4 m Heated 10 m Heated 20 m Heated
Column temperature 110 °C 40 °C 40 °C
Injector temperature 110 °C 50 °C 50 °C
Column pressure 100 kPa (15 psi) 150 kPa (21 psi) 200 kPa (28 psi)
Sample time 30 s 30 s 30 s
Injection time 40 ms 40 ms 40 ms
Run time 25 s 140 s 210 s
Detector sensitivity Auto Auto Auto
Peak 1 Hydrogen 1.0 % Neon 18 ppm Neon 18 ppm
Peak 2 Argon/Oxygen 0.4 % Hydrogen 1.0 % Hydrogen 1.0 %
Peak 3 Nitrogen 0.2 % Argon 0.2 % Argon 0.2 %
Peak 4 _________ Oxygen 0.2 % Oxygen 0.2 %
Peak 5 _________ Nitrogen 0.2 % Nitrogen 0.2 %
mV
Molsieve 5Å 4 m heated
0
2
4
6
8
10
12
14
Seconds
1
2
3
0 5 10 15 20 25
Molsieve 5Å 10 m heated
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
Seconds
mV
1
2
3
4
5
0 20 40 60 80 100 120 140 160
Molsieve 5Å 20 m heated
0
50
100
150
200
250
300
350
400
450
mV
Seconds
4
3
2
5
1
0 50 100 150 200 250

Agilent Technologies 990 Specifications

General

Brand	Agilent Technologies
Model	990
Category	Laboratory Equipment
Language	English