Part Number
Description
Link to Ordering (includes photo)
126 1012
J&W DB-1 GC Column, 10 m, 0.05 mm, 0.05 µm, 7 inch cag
126-1012 | Agilent
5182 0717
Cap, screw, blue, PTFE/red silicone septa, 100/pk. Cap size: 12 mm
5182-0717…
System: The GC is an 8890 with TCD in series of two FIDs in parallel (switched via valve). FID 1 has methanizer while FID 2 doesn't.
Had to put the system on standby for 3 weeks over Christmas so kept carrier flowing through the system with all heated…
Our Ultivo LC/TQ fails autotune immediately citing a Nozzle Fault. The log suggests the associated voltage is out of optimal range. Funnily enough, the system passes check-tune without any issue! The check-tune report shows the voltage perfectly matching…
I'm trying to install Openlab CDS 2.7 on Windows 10. When running the system preparation tool, everything passes test except the Ports Check -configuration: 'workstation ' and it says FAIL. I tried to run the recheck and repair, but it still fails. Any…
Dear Community Member,
I have facing some issue in ELECTRONIC PNEUMATIC CONTROLLER (EPC) of GAS CHROMATOGRPAH (7890B) The EPC Module has not give the Set Flow rate for AIR Flow, as we have give the Set Point of Air 350 ml/min, but the observed flow…
After some burner head cleaning, I reassembled my FAAS 240FS and now I can't get the burner head to light. Some details:
I was running some "dirty" samples with the nitrous burner head that plugged up the sample capillary and started to block the…
I found that our syringe plunger failed to withdraw sample. By replacing with a new syringe, the problem solved. So the sensitivity issue is resolved. thank you very much for your tip. However, we have come across another issue - unusual features in the…
I am looking to set up in line sampling on a GC/FID (6850A, G2630A) with a capillary column. I have found sample valves listed for 6850 series GCs (e.g. G2668A), but the part description specifies it is for G2630B, so I take it that this is incompatible…
The MS column exits into vacuum. The FID column exits to atmospheric pressure.
Same carrier gas, column, oven temperature, inlet pressure results in different holdup times. These examples are using the Pressure Flow Calculator available here GC Calculators…
The probability of water precipitation is very low if the FID temperatures are high enough, but in times of 5890 the FID could not ignite well when water was present. In principle a FID can be operated without makeup gas, which manufacturers officially…
This Information Applies To: Agilent GC Systems
Issue
Excessive baseline noise can be introduced at different points including sample preparation, sample introduction, separation, and the detector. The excessive background can cause reduced signal...
This Information Applies To: Agilent GC Systems
Issue
Baseline instability that is not reproducible across multiple runs can be introduced at different points including sample introduction, separation, and the detector. The baseline instability...
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...