Update: FID output signal was very low even when trying to ignite, so we checked the interconnect spring and noticed it was shorter than the ones in the other GCs (not that close to the detector base; dont know if it was always like that or something…
Hi,
We are struggling to solve an issue with an Agilent 8860 GC-FID we purchased in 2019. It is used to quantify propane in headspace samples that are manually injected. It is possible but unlikely that some of those headspace samplings result in the…
Tip for other users that may encounter an FID Ignition problem: try blowing on the FID when it is trying to light. If the FID lights - there is an issue with the gas flows. It is best to use a flow meter like the ADM Flow Meter for gas chromatography…
Tip for other users that may encounter an FID Ignition problem: try blowing on the FID when it is trying to light. If the FID lights - there is an issue with the gas flows. It is best to use a flow meter like the ADM Flow Meter for gas chromatography…
Hey. Johnson we solved the Problem by removing the igniter Castor with collector nut and the spring locks Info the right place. Another Problem could be the malfunction electrometer.
I have a 5890 GC running ASTM D2887, simulated distillation. It is equipped with a FID and recently we noticed the FID won't light. Flows are good and gases are good. Looking at the setpoint/actual reading, it states it is at the correct temperature …
Hello DET ,
Sorry for the late response on this.
What sort of spiking do you see usually? What is the output of the FID, in pA?
Are you using any UPS systems, or are the GCs plugged directly into the wall?
Hello what9000 ,
I have a couple questions to try to understand this better:
- What is the outlet voltage?
- Is it a dedicated circuit?
- Are you using any UPS systems, or is the system plugged into the wall directly?
This Information Applies To: Agilent GC Systems
Issue
Peak fronting is present in a chromatography peak when it has an excessive asymmetry with a leading edge. A normal peak is almost symmetrical.
Other chromatographic problems are identified...
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...