Purification Solution - Developer's Guide 15
Preparing Default Purification Methods
2
General Method Settings
Flow Modulator (G7170B)
MSD
Access by Method > Edit entire method or by right click on MSD icon
Save the method as
General_Purification
• Method > Save Method as
Splitting Operation Select Splitting disabled.
Set Up MSD Signals General
Peakwidth: 0.1 min (this defines the MSD data rate; make sure
that it is sufficient).
Active Signals: Mark 1 and 2 signals and name them, for
example,
Positive
and
Negative
MSD Signal Settings
Signal: 1, Mode: Scan, Polarity: Positive, Mass range: 125 – 725,
Step size: 0.1
Signal: 2, Mode: Scan, Polarity: Negative, Mass range: 125 –
725, Step size: 0.1
MSD type-specific settings • MSD G6120B/G6125B
If the actual cycle time is above 0.9 s, consider decreasing it
by using only one scanning polarity (lower cycle time will
require less delay coil volume):
• General > Active Signals > clear Signal 2
• MSD Signal Settings > Signal 1 > specify polarity
• MSD G6130B/G6135B
General > Peakwidth > 0.07 min
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