Most likely the octopole PCA is failing. You could try dipping it, but if it happens again after redipping the board is failing and needs to be replaced.
Hi kalle-h,
Has the method worked well for you in the past? Any changes recently like column trims? Sometimes small pieces of column can get caught inside the modulator fittings and impede flow, which has negative effects on our data.
If your peaks…
It was on the equipment, you can check to be sure by running a performance check on the chiller. Our chiller passed all points on the performance check but failed on the ICP system.
I have tried two new lamp and its all fail intensity test on the controller. Then I borrow a standard flow cell from another LC and I got min. intensity pass but fail average intensity. So I use Methanol to clean the flow cell window and flush the flow…
Hi!
I run 200.8 on the 7850 ICPMS for drinking water.
I calibrate with 10, 50, 100, 250, and 500 ppb for Cu (among others). I would like to calibrate up to 2,000 or higher for Cu - but every time I try to calibrate above 500, my CCV and LFB fail…
Dear Sir/Madam
Good morning. Currently, I am working on GC-MS, Agilent. I am able to run my samples as a batch samples. However, I am not able to quantify as well as prepare calibration curve using MassHunter. I followed the user manual but failed.…
Hello Nbauer, thank you! I've tried to move the blanking nut at the outlet valve but the result is the same "test aborted by system" and, on the right "failed to comunicate with the module". All modules are connected so maybe could be a problem with the…
Hello
We have an agilent ultivo qqq and last week when trying to run a checktune it failed giving a message saying calibrant bottle is empty or nebulizer is clogged. Nevertheless the calibrant bottle is definitely not empty, and the nebulizer also doesnt…
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...