This Information Applies To: MassHunter acquisition software for GC/MS systems and MSD Productivity ChemStation for all Agilent GC/MS systems
Manual tuning lets you interactively set the MSD parameters, such as lens voltages and tuning masses, to values that meet the needs of your particular analysis. Using manual tuning you can often obtain greater sensitivity than you can with autotune.
Manual tuning allows you to ramp individual parameters and to specify the range and step size for the ramp. The results of the ramp are displayed visually with the optimum value for the parameter clearly marked on the plot.
Manual tune is also helpful for troubleshooting, e.g. leak check. You can acquire two types of data in manual tune: profile scans (plots the abundance and peak shape of the tune masses) and spectrum scans (scans plot response across the entire mass range).
Steps to Follow:
There are two ways to access to Manual Tune:
From Instrument Control View
In the Instrument Control window, click Instrument > Edit Tune Parameters to display the Manual Tune dialog. (See Figure 1)
From Tune and Vacuum Control View
Learn how to effectively operate your Agilent MassHunter Workstation:
Agilent 5977 GC/MSD with MassHunter Workstation e-learning path available from Agilent education