Agilent Technologies 5975 Operation Manual page 123

Table 19 Reagent gas settings
Reagent gas
Ion polarity Positive
150 A
Emission
Electron 150 eV
energy
Filament 1
Repeller 3 V
Ion focus 130 V
Entrance 20 V
lens offset
EM volts 1200
Shutoff valve Open
Gas select A
Suggested 20%
flow
Source temp 250 °C
Quad temp 150 °C
Interface 280 °C
temp
Autotune Yes
N/A Not available
5975 Series MSD Operation Manual for MassHunter
Methane
Negative Positive
50 A 150 A
150 eV 150 eV
1 1
3 V 3 V
130 V 130 V
20 V 20 V
1400 1200
Open Open
A B
40% 20%
150 °C 250 °C
150 °C 150 °C
280 °C 280 °C
Yes No
Operating in Chemical Ionization (CI) Mode
Isobutane
Negative Positive
50 A 150 A
150 eV 150 eV
1 1
3 V 3 V
130 V 130 V
20 V 20 V
1400 1200
Open Open
B B
40% 20%
150 °C 250 °C
150 °C 150 °C
280 °C 280 °C
Yes No
Ammonia EI
Negative N/A
50 A 35 A
150 eV 70 eV
1 1 or 2
3 V 30 V
130 V 90 V
20 V 25 V
1400 1300
Open Closed
B None
40% N/A
150 °C 230 °C
150 °C 150 °C
280 °C 280 °C
Yes Yes
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