Hello Samehalsharawy ,
Can you please elaborate on the statement we uninstalled the cylinder expecting the flow to come down to zero but it didn't. It stayed at 50?
If no physical tank is connected to the GC, the GC gas connections are capped…
I was experiencing ghost peaks in my water blank shots so I decided to do some maintenance. This included a new S/SL liner and septum, removing the first inch or two of the column, FID disassembly and ultrasonic cleaning of the jet, and reassembly. Now…
Hi, thank you for your reply.
I am trying to process metabolomic sample .d files generated from an LCMS-QTOF. I did not get this problem a month ago, however, to solve other problems with permissions I had to uninstall and reinstall profinder.
I have…
I have a problem with my FID on a HP-4890d Gas Cromatograph.
The FID was working as normal, then the FID didn't start, so I checked the gas flows, and the H2 didn't come out from FID.
I suspect maybe the Hydrogen pipe line is clogged or the on/off…
Learn about how to inspect the torch, bonnet, shield plate, and RF Coil, as well as torch cleaning and handling recommendations for Agilent ICP-MS systems.
Preventative and regular maintenance are crucial in avoiding ignition issues and plasma instability…
Hi all,
We have a 5975 MSD that is failing to pump down. The turbo pump (Pfeiffer HiPace 300) does not appear to be spinning up, though the turbo pump electronic drive unit has power and is displaying LED light activity. The rough pump has been serviced…
A customer has the MP-AES 4200 for soil analysis but recently started to have a problem with the ignition of the plasma or keeping the plasma on. The customer reported that was a problem with the exhaust system or the inlet fan (cooling system). I checked…
BioConfirm was not designed as a proteome search engine. Searching for proteins using intact mass may not work since the proteome databases are based on DNA reads and include signal proteins/peptides removed from the expressed protein and the fasta file…
Why noise? I don't see a problem with noise.
With regards to the failed drift results, officially the test is to be run with a flow rate of 0.5 ml/min.
Hi Guys, I have a 7980B GC with an external injection valve and FID detector. I am using OpenLab CDS Chemstation Version C.01.09 with Windows 10 (version 1703). Sometimes while running a sequence it fails to save the chromatogram. When you select the…
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...
This Information Applies To: Agilent 6890, 7890, 7820, 8890 and 8860 GC Systems with Split/Splitless (S/SL) inlet
Issue
Replacement of the Gold Seal is required as part of inlet maintenance. Replacement is required when the performance of the inlet...
This Information Applies To: Agilent GC Systems with Micro-ECD.
Issue
The Wipe Test is an annual test that performed by end user of the micro-ECD (Micro Electron Capture Detector or uECD) to help ensure radioactive safety when using the detector...
This Information Applies To: Agilent GC Systems with thermal conductivity detector (TCD)
Issue
Baking the thermal conductivity detector (TCD) at high temperatures can remove sample contaminants that have deposited on the detector surfaces.
Items...
This Information Applies To: Agilent GC Systems with flame ionization detector (FID)
Issue
Baking out the flame ionization detector at high temperatures can remove sample contaminants that have deposited on the detector surfaces.
Items required...
This Information Applies To: Micro Electron Capture Detector (uECD)
Issue
Baking the micro electron capture detector (µECD) at high temperatures can remove sample contaminants that have deposited on the detector surfaces.
Warning ...
This Information Applies To: Agilent GC Systems with Flame Ionization Detector (FID)
Issue
This article will describe how an operator can configure the makeup gas on both the instrument keypad and the software driver (Method Editor).
Background...
This Information Applies To: Agilent HPLC systems
Issue
The presence of ghost peaks can be a symptom of a system contamination issue, caused by accumulation of sample and/or foreign substances in the flow path. It is critical for high sensitivity...