Hi Tenamyd
Maybe a bit more detail would help to get you an answer. Here's a few questions:
Is the method gradient or isocratic
Do you prepare the mobile phase freshly each day
Is the column maintained at a set temperature using a column oven…
You will need to plot the piston movement as well. The upper plateau is the secondary piston moving. If the spike is at the beginning of the plateau, then it is more likely the Outlet ball valve. If the spike is at the end of the plateau, it is more likely…
Hello,
Sorry for the late reply. Thank you so much, that actually worked perfectly and I can now produce a report template fit for our purpose. Thanks again and I really appreciate the assistance.
This shows where to drill a 2.5" (6.35 cm) hole in the bench to be able to pass the rough pump hose fittings through to be put the rough pump on a shelf below the bench. Information on how to vent the rough pump to a lab exhaust system is also included…
Putting the GCMS rough pump under the bench SQ and TQ 31Jan2024 with DE.pdf
Hi Mike,
I followed your advice but have not been successful getting any of these methods to work. When I try the first method, I get an error message at the bottom of the screen "Syntax Error in cmd/fct EVALUATE" that prevents the data from being exported…
Hello Tom,
Thank you so much for your reply. This is really helpful. I am running MH V4.6. If you could send me the screen captures for this version would be greatly appreciated!
Cheers,
Inês
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Hello,
You can view the completed injections in a sequence in the reprocessing session(offline) of the instrument. If you are talking about viewing the data for the in-progress injection, you will need to take a snapshot. I did not have anything running…
This Information Applies To: Agilent GC Systems
Issue
A shift in retention time can occur for single, multiple or all peaks.
Other chromatographic problems are identified in Basic Troubleshooting for GC Systems . Regular maintenance of your instrument...
This Information Applies To: Agilent GC Systems
Issue
A change in peak size can occur for single, multiple or all peaks.
Other chromatographic problems are identified in Basic Troubleshooting for GC Systems . Regular maintenance of your instrument...
This Information Applies To: Agilent GC Systems
Issue
Peak splitting is when a single compound is shown in the chromatogram as two peaks usually unresolved, or one of the peaks is a shoulder.
Other chromatographic problems are identified in Basic...
This Information Applies To: Agilent GC Systems
Issue
This test isolates the point of contamination to the sample introduction system, which includes the gas supply, gas supply lines, and the sample inlet. It does not include the syringe or autosampler...
This Information Applies To: Agilent GC systems
Issue
Peak tailing is present in a chromatography peak when it has an excessive asymmetry with a trailing edge. A normal peak is almost symmetrical.
Other chromatographic problems are identified...
T his Information Applies To: Agilent 8890/8860/7890/7820/6850/6890 GC Systems with TCD (Thermal Conductivity Detector)
Issue
Problems observed with thermal conductivity detector (TCD) results can have different underlying causes.
Resolution...
This Information Applies To: All GCs, 6890, 6850, 7890, 7820, 8890/8860, Intuvo 9000
Issue:
This article is a troubleshooting guide for when the Flame Ionization Detector (FID) does not ignite or the flame keeps going out.
Cause:
If the FID...
This Information Applies To: Agilent GC Systems with Flame Ionization Detector (FID)
Issue:
The Flame Ionization Detector (FID) jet could become clogged with ferrule material, column bleed, or heavy molecular analytes. The clogged jet will affect...
This Information Applies To: Agilent GC Systems with Split/Splitless (S/SL) inlet
Issue
Different liners are required for different high concentration, split analysis techniques including:
General use liners
Auto inject, general use
Auto...
This Information Applies To: Agilent GC Systems with Split/Splitless (S/SL) inlet
Issue
Different liners are required for different splitless trace analysis techniques including:
General use liners
Pressure, temperature, volume (PTV)
Hot...