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The Digest of upcoming webinars has been updated as of April 2.
In April, you don't want to miss the GC Live Event, Diagnostics From Your Desk, Troubleshooting From Your Kitchen Table on April 11!
Check out the new Agilent Community Group, GPC…
The slope of the second plateau in the leak test for the quat pump of our Agilent 1100 fails. We are getting a negative slope of -2.18. Pressure and slope for the first plateau passed. Pressure for second plateau passed but the slope was negative giving…
What version of WinUV do you have? We were delivered WinUV 5.1.3 with .1042 (Part 11 security module).
The system was built with a tutorial in Adobe Flash but unfortunately for all of us, Flash was discontinued worldwide for security reasons. This meant…
Hi,
I suggest to run an auto-tune, then you will have a checktune report at the end of a sucessful auto-tune. If the auto-tune fails for the same reason you have mentioned and gives the same error message and you are sure the bottle not empty and nebulizer…
Basically you must create standard calibration level with level name as you wish, and u will not use this level for calibration, but only for comparing your QC in batch table with this "calibration level".
Hi Sabbas, The "Peaks and Valleys" option can be used to label both peaks and valleys on the same spectrum.
Right-click on any dataplot and click "Peak Labels", and under "Peak Type", select "Peaks and Valleys". If the "Threshold" value is set up according…
This is a compilation of some of the most useful GPC/SEC System resources, including recommended column and standards, software packages, theory and operation, user manuals and troubleshooting guides.
GPC and SEC Columns & Standards for Polymer & Plastic…
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...