Agilent Technologies MSD 5977B Series Operating Manual page 146

6 Operating in CI Mode
CI Autotune
Table 11 Reagent gas settings
Reagent gas
Ion polarity Positive
150 A
Emission
Electron energy 150 eV
Filament 1
Repeller 3 V
Ion focus 130 V
Entrance lens offset 20 V
EM volts 1200
Shutoff valve Open
Gas select A
Suggested flow 20%
Source temp 250 °C
Quad temp 150 °C
Interface temp 280 °C
Autotune Yes
* N/A Not Available
146
Methane 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
A B
40% 20%
150 °C 250 °C
150 °C 150 °C
280 °C 280 °C
Yes No
Ammonia
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
5977B Series MSD Operating Manual
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