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Tuning in APCI Mode
51
3
3.
Specify these suggested parameters in the APCI+ Source page fields.
4.
Select all four Peak Editor fields, and enter these mass assignment values.
5.
Start the LC pump, specifying a 1 mL/min flow rate.
6.
Click
(Syringe pump) to infuse the startup solution into the source.
7.
Click the
Analyser
tab, and ensure the syringe pump flow rate is 10 µL/min.
Turn the probe adjustor (see
) in either direction to optimize peak
intensities.
Parameter
Suggested Value
Corona (µA)
0.1
Cone (V)
48
Extractor (V)
3
RF Lens (V)
0.0
Source Temp (
o
C)
120
Desolvation Gas Flow (L/hr)
300
APcI Probe Temp (
o
C)
500
Cone Gas Flow (L/hr)
50
STOP
Attention:
Before proceeding, let the source temperature, desolvation gas
flow, desolvation temperature, and cone gas flow reach their setpoints. See
for information about monitoring readbacks.
Mass
Span
Gain
175.1
5
10
609.3
5
10
1080.8
5
10
2034.6
5
10