I have a 5977B MSD that is experiencing a vacuum failure after a scheduled shutdown for renovation work in our facility. Work was completed and now we are restarting the system. At first we though it was the roughing pump, but we have bypassed the remote…
Also, please make sure that a default printer is configured in Windows. If no default printer is configured, the following problems may occur: - Printing of a report preview will fail. - the 'Copy To Clipboard' menu will have an error - the 'Custom Report…
Hi Everyone, I'm operating our Cary 3500 and I am helping with an assay being put together based on competitive binding. Because of the competitive binding, the primary and reliable peak *decreases* in size rather than increasing as the concentration…
Im running on an old GCMS with headspace sampler. Its been failing during runs recently. The logbook shows that the oven is not ready at run time for each sample. After about 10 samples it just stops collecting data. The headspace continues to cook all…
We are trying to validate a new method, and our area counts are low and inconsistent. Our Hydrogen is from a generator and goes through an indicating filter. I replaced said filter recently, and am seeing it respond to moisture fairly quickly. How often…
jhagel is correct, do not change PE (Yellow) to PTFE (black) seals in round headed pumps (1290 Infinity and Infinity II as well as G7014C). Both seal types have benefits and downsides: While the black seals are generally better when using them with reverse…
Hello,
I have a G6545 QTOF / 1260 HPLC system that came with an HP Z440 workstation with Windows 10 as part of the purchase from Agilent. The workstation is ~ 3 years old. The instrument was running normally over the weekend -- when I came back, the…
Hello,
I have been struggling with this coding error with OpenLabs Chemstation Report layout, I'm hoping the Agilent community may have a solution to my problem.
I'm told that the coding language for the Openlabs report templates is pretty much the…
The only change we made was to install a DB-VRX column. It goes to the Agilent splitter mounted inside of the oven, then goes to the FID and MS. When I inject a sample, the FID and MS chromatogram peaks follow each other perfectly. After the injection…
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...