Introduction - Agilent Technologies G1701EA Familiarization Manual

2
Tune the MS

Introduction

18
Tuning is the process that adjusts the MS for good performance
over the entire mass range. Using a known compound as a
calibrator, the tune parameters are set to achieve sensitivity,
resolution, and mass assignments for the known calibration
ions.
Tuning is performed using either the autotune or manual tune
features.
Manual tune allows you to adjust an MS tune parameter while
viewing the results easily in profile scans and spectra.
Manual tuning is used:
• To achieve maximum sensitivity by sacrificing some
resolution
• To tune specifically for the very low end of the mass range
(< 150 amu)
• To tune with a compound other than the standard calibrator
To access manual tune parameters select Parameters > Manual
Tune from the Tune and Vacuum Control window or select Instrument
> Edit MS Tune Parameters from the Instrument Control window.
Please see the ChemStation online help for details on using
manual tune.
The autotune program described in this section adjusts the MS
for good performance over the entire mass range and is
recommended for most applications.
Agilent G1701EA MSD Productivity ChemStation Familiarization Guide