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Chromatographic Symptoms
3
Troubleshooting and Maintenance Guide
39
Peaks Not Displayed/No Peaks
•
If using an autosampler:
•
Ensure that there is sample in the vial.
•
Verify that the ALS plunger carriage is secured to the
syringe plunger.
•
Check that the syringe is installed correctly and draws
sample.
•
Verify that the turret is loaded correctly and injections
are not from out-of-sequence vials.
•
Watch to see that the sample is pulled into the syringe.
•
Check the column for proper installation.
•
Ensure that the column is not plugged. Perform column
maintenance.
•
Check for leaks. (See
No peaks
If an analysis shows no chromatographic peaks, only a flat
baseline or minor noise, run one of the automated tune
programs. If the MSD passes tune, the problem is most likely
related to the GC. If the MSD does not pass tune, the problem is
most likely in the MSD.
Passes tune
•
Incorrect sample concentration
•
No analytes present
•
Syringe missing from the ALS or not installed correctly
•
Injection accidentally made in split mode instead of splitless
mode
•
Empty or almost empty sample vial
•
Dirty GC inlet
•
Leaking GC inlet*
•
Loose column nut at the GC inlet*
* These could cause a fault condition in the GC that would prevent
the GC from operating.
Does not pass tune
•
Calibration vial is empty
Содержание 5975T LTM GC/MSD
Страница 1: ...Agilent Technologies Agilent 5975T LTM GC MSD Troubleshooting and Maintenance Guide...
Страница 10: ...10 Troubleshooting and Maintenance Guide...
Страница 32: ...32 Troubleshooting and Maintenance Guide 2 Concepts and General Tasks...
Страница 72: ...72 Troubleshooting and Maintenance Guide 3 Chromatographic Symptoms...
Страница 86: ...86 Troubleshooting and Maintenance Guide 5 ALS Symptoms...
Страница 98: ...98 Troubleshooting and Maintenance Guide 7 Instrument Power On and Communication Symptoms...
Страница 108: ...108 Troubleshooting and Maintenance Guide 9 Troubleshooting Tasks...
Страница 150: ...150 Troubleshooting and Maintenance Guide 10 General Maintenance Figure 16 Replacing filaments Filament 1 Filament 2...
Страница 166: ...166 Troubleshooting and Maintenance Guide 10 General Maintenance...
Страница 214: ...214 Troubleshooting and Maintenance Guide 13 Analyzer...
Страница 239: ...Parts 15 Troubleshooting and Maintenance Guide 239 Figure 39 LCP replacement parts LCP assembly and fascia...