Chapter 8 Viewing Voyager PSD Data
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| NOTE: This selection determines the mass type specified |
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| for the reference masses in the calibration reference file. |
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| Use a calibration reference (.REF) file that specifies the |
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| peak type for reference masses as Resolved Isotope |
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| Mass (even if they are not resolved isotopes). The |
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| calibration routine checks peak width to determine if a |
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| peak matches a Resolved Isotope Mass or an Average |
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| mass. If narrow peaks are specified as Average |
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| Masses in the calibration reference file, the software |
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| mistakes these narrow peaks as isotopically resolved |
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| and ignores the reference mass. For more information |
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| on creating calibration reference files, see |
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| 4. Click Induce Fragmentation. | |
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| Results are listed in the ions table, and fragment ions |
| are labeled if they are present in the spectrum. | |
| 5. Click Create Reference File. | |
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| A Save As dialog box is displayed. |
| 6. Name and save the calibration reference file. | |
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| Hint: PSD calibration reference files are named with an |
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| .REF extension. When you create PSD calibration |
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| reference files, include a _PSD suffix when you name |
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| files to help you distinguish them from |
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| calibration reference files. |
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| Hint: Calibration reference files are ASCII text files. |
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| You can delete unwanted fragment ion entries using |
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| Microsoft Notepad. |
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