Chapter 5 Examining Spectrum Data
5.3.4 Reverting to Instrument Calibration
The Revert to Instrument Calibration function does the following:
•Mariner data— Reapplies the original calibration constants used to acquire the data.
•Voyager data— Applies default calibration to the data, regardless of whether default or external calibration is used to acquire the data.
To revert the calibration:
1.From the Process menu, select Mass Calibration, then select Revert to Instrument Calibration.
The spectrum is recalibrated with the original calibration constants used during acquisition (Mariner data) or default calibration (Voyager data) and displayed with an MC trace label. The original and new constants are displayed in the Output window.
2.To save the reverted calibration with the data file, select Mass Calibration from the Process menu, then:
If you are | Select | The following occurs | |
calibrating | |||
|
| ||
|
|
| |
Mariner | Apply Calibration | All spectra in the data file are calibrated and | |
data |
| displayed with an MC trace label. The | |
(including |
| calibration constants are saved with the data | |
MS Method |
| file. Each spectrum in the data file is | |
data) |
| calibrated when displayed. | |
|
|
|
5