OK, first you need to increase your read time to at least 30 seconds, preferably 60 seconds. At 10 seconds, you are probably not seeing a peak for the 5ppb standard, which is why your calibration is failing (not linear). How low are you trying measure…
Hi Chris and Chelsea,
thanks for your detailed answeres. I tried the suggested fixes and so far did not managed to reestablish a connection between PC and ICP-MS also after resetting the IP address of the ICP-MS. The computer detects that there is a…
I have a 6890N GC-FID with a 7683 Series ALS and I'm using Agilent Open Lab (EZChrom Edition) software. The software won't trigger the autosampler to make an injection. A box appears on the screen with the message 'Incompatible Tray'. I have verified…
I have an Agilent 5975C MSD and 7890A GC that I'm getting a failed PING test on. I've done the troubleshooting I can (reboot system in proper order, reboot PC). I can ping the main IP but the ones going to the instruments fail. Please advise. PC is running…
Hello all,
We are running a GC/MS 5977A/7890B in our lab. Last week, after cleaning and reinstalling our Extract EI source, the system pumped down normally, but the GC gave a "Thermal Shutdown" message. Under status, it read "Thermal Aux 2 Open Sensor…
Hi carcuri13, This sounds like the heater sensor assy is failing. If the change is rapid in temperature , the thermal block is not capable of changing quickly. The heater sensor would need to be replaced. Regards James
Hii,
I'm looking for some help or suggestion to unlock my 5973 MS.
In the process of updating the FW from 5.01.62 to 5.02.07, required by MSD Chemstation E.02.01, I received a request for USER and PASS that did not stop the procedure, but eventually…
I'm in IT support for a chemistry lab using an old Varian Cary Eclipse Fluorescence Spectrophotometer. The old PC the lab tech were using had some issues during Scan Setup where they were unable to input the necessary parameters for their measurements…
"Instrument" software of our LC doesn´t show analysis results anymore. When we try to open result data, it shows the message "Incomplete results. 1 out 1 data files do not have a result file and will not show up on the report. To generate results recalculate…
Hi, I am using Agilent 7820A GC-FID with EZChrom Elite data system. I am absolutely new to GC. Past few days I am trying to do a multi-level calibration for my analyte. But totally confused with the options I find in the software. So far I have done the…
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...