I'm using a different version than you so this may not be applicable, but it is worth a shot. In the default "Compound Results" table, it filters out missing peaks. You can include this by opening up the table properties, going to the tab labeled "Peak…
The compound used for tuning EI GCMS systems is PFTBA. FC43. Heptacosafluorotributylamine. Tris(nonafluorobutyl)amine. Perfluorotributylamine
Take a look at this application note for some examples: an-pfas-in-air-5994-5289en-agilent.pdf
…
Hello,
If all you need is the Area Ratio of peak to its' IS then the expression below should work,
Marty
Peak_Area / CurrentPeakOrGroup. ISTD . Peak_Area
I have a 7890B GC with a gas sampling valve and I'm looking for the part number for a 6 port rotor that has a 10mm OD. I have not been able to find the number on any of the provided parts list. Thank you for the help.
Hi AnniarysRnD,
Check in your Processing Method>> System Suitability>>Separation performance computation>> Void time (min). In order to calculate column performance parameters, including Peak_CapacityFactor or Capacity factor of k', you need to enter…
I had notice that the air volume is set to 1ul which is the same as the sample volume (I’m assuming is the same as the injected volume). You could try to set the air volume to 0ul and observe if the injection is consistent after this.
Hi Susana,
Thank you for contacting Cell Analysis Technical Support. Unfortunately, the BIoTek part of our team is not yet on the Agilent Community. However, they can be reached at the below options:
Phone Contact: 800-227-9770 (Option 3, option…
Hi Mike, Thank you, yes correct, here is our situation to clarify, we upgraded in order to retire the Win7 OS. We had methods on Agilent UV 8454 ChemStation B.05.02 that managers would create, reviewers would approve, and analyst could use the methods…
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...