luciayuan Why DMF cannot go through channel D? Which pump do you have? Isocratic or Quaternary pump? For the leak rate test, I would suggest pressurize the pump at the purge valve to find out where it is leaking. I would suggest log a ticket with your…
At this time there isn't any UV deconvolution in our software. We do offer LCMS Deconvolution/Bioconfirm. Mass Spectrometry Deconvolution Software – OpenLab CDS | Agilent
MSCHU I would suggest reinstall the peristaltic pump and ensure there is flow to the seal wash sensor (top right). If not, please reach out to the local Agilent representative for technical support.
Hello,
No, you would need to have the original method used to acquire the data, already have a calibration or at least have the compounds identified.
Marty
Hi LD,
We do not recommending substituting as EGTA has higher affinity for chelating calcium ions and lower affinity for chelating Mg2+ ions compared to EDTA.
Thank you and please let me know if you have any other questions!
Courtney
If there is a blinking led on the tower, there is a fault at the sampler tower. See page 256-258 in the 7693 Installation, Operation, and Maintenance manual. G4513-90010.pdf (agilent.com)
Yes, to troubleshoot a sequence error the sequence log from the…
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Hello,
You will need to license the software before the 60 grace period ends, or some function will stop working until you have a permanent license. I do not know what configuration you have nor the purpose of the installation so I cannot say why…
Hello,
You turned the value back into a number by dividing by10 outside the formatnumber statement. I would just place the entire statement in a Val() function and then format the column as 1 decimal place.
Marty
=Val( If ( Signal_Name like…
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...