Hello, we were not able to tune the instrument at all. There was so much noise at low mass that it fails the initial quad coarse mass calibration. We think it is PEG contamination, possibly also PPG, but a number of masses correspond with sodiated PEG…
The tune evaluation criteria are benchmarks that GCMS instruments typically pass.
"Designed for" and "works with" are two different things. The tune evaluation was created before the Extractor Source and High Efficiency Source. These ion sources get…
Morning, You are correct. I am running OpenLab CDS ChemStation. Rev code = C.01.04 [35]. Intelligent Reporting product version A.01.04.122. The system suitability issue is that I'm only getting the TCD satistical results. The FID result are not printing…
Hey Ryan, try the following. Normally, the valve command failed is coming as a result of the position not found. Overtightened screws are a typical result if you have done maintenance before (happened to me the first time...). Tighten the screws each…
Hello Lars, Thanks for your reply. Unfortunately, there is no flow meter meter installed. So you are saying that, in your case without stopping gas flow before GC injection, you are only getting 1-2% deviation in FID response? If possible could you explain…
I have a G4226A autosampler with a recurring error message. Movement of needle into seat failed [EE 4714, 3204]
This error started after the autosampler had been repaired by a field engineer. The main board had to be replaced; the computer was unable…
Hi I have a very basic question, please correct me if I am wrong. I am using GC 7820 with FID detector. Flow , Pressure everything was set by another technician before I started. I know for Back Detector everything is what is set by the Technician in…
I think that, with this version of the software, there are configuration files stored in the "instrument number folder", e.g. C:\Chem32\n I was going to suggest that you try to delete/rename the config.reg file, having closed all instances of Chemstation…
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...