Did you finally determine the cause of the inconsistent results? I'm having a similar issue with a different instrument. I have gone through my troubleshooting list and failed to identify the issue.
Many GC and GCMS installs do not have the items needed to complete the installation. GC and GCMS system installs rely heavily on site readiness and customers having all the material needed, like copper tubing, Swagelok® fittings, and regulators. This…
Additional Items to add to GC and GCMS Orders-Customer Facing.pdf
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We faced problems with our GC 7890B which is connected to a Leco Pegasus BT. Since this week we have a really high noise, which comes regularly every 5seconds. We already cleaned FID many times, replaced Jet and built the FID out an in…
Hello
We are working on developing a method for detecting mineral oil contamination (MOSH and MOAH) in edible oils. We are able to get MOSH (mineral oil saturated hydrocarbons) to work well, but when we inject a sample for MOAH (mineral oil aromatic…
There are two log files. The main file looks like a lot was going on.
I went back and did a search for "error" and found the following:
Could not create system restore point, error: 0x80070422. Continuing...
Error 0x80096010: Failed authenticode…
No I haven't. But I think that is the only solution. Perhaps there are somehow misalignment making it not robust and the needle fail to go in the vial and abort the run randomly. . I will do the auto-reference and I will wait and see how frequent the…
Hello,
I previously had Quant 11 on my personal computer and decided to upgrade to Quant 12.1. When I tried to use the installer I get an error that "Set up was Interrupted" and fails to install. I tried to go back to Quant 11 but now get the error…
I think our only problem at the moment is a hardware issue (EPC failing to shut makeup gas OFF when called for) that prevents FID ignition… we’re putting in a call for service to resolve that. I’ll be working to resolve user error (Comments Edited by…
We tried all the above steps, but the problem continued. We had to change the parameters in the Methods file as suggested in another reply from Cendy D. to make the instrument continue
Fragment analyser (HS NGS kit) fail to achieve 4µA
This Information Applies To: Agilent 5975 and 5977 series GC/MSD
Issue:
Tuning the Agilent GC/MSD with EI sources, requires the use of perfluorotributylamine (PFTBA). The calibration vial will be depleted eventually due to regular use. This article...
This Information Applies To: Agilent 5975 and 5977 series GC/MSD
Issue:
If the PFDTD signal is absent or low, but the reagent ions are normal, you may have run out of CI Calibrant.
Inspect the calibration vial on the back of the flow controller...
This Information Applies To: Agilent 5975 and 5977 Series GC/MSD
Issue:
For some GC/MSD maintenance or repair asks, it is required to open the side plate (filament exchange, ion source cleaning, electron multiplier exchange, column installation...
This Information Applies To: Agilent GC/MS MassHunter Acquisition Software Agilent 5975/5977 GC/MSD
Issue
Use the Early Maintenance Feedback (EMF) tool to track the GC/MSD's consumable resource and part use, and to configure alerts for when they...
This Information Applies To: Agilent GC/MSD systems
Issue:
After a filament fails, there will be a system error message: "No emission current". Switching to the other filament (except for the CI ion source, which has just one filament), and then...
This Information Applies To: Agilent 7693A automatic liquid sampler tray
Issue:
The orange Align Mode light comes on . T he sample tray of the Agilent automatic liquid sampler 7693A will not operate again until the alignment procedure has successfully...
This Information Applies To: Agilent 7693A Automatic Liquid Sampler
Issue:
The automatic liquid sampler may need to be replaced, in case it is worn or dirty.
Steps to follow
To remove the syringe:
Open the injector door.
Slide...
This Information Applies To: Agilent 7693A Automatic Liquid Sampler
Issue:
Two turrets are provided with the 7693A injector, the 16-sample standalone turret, and the 3-sample transfer turret used with the 150-sample tray (See Figure 1 ). The turret...
This Information Applies To: Agilent 7697A Headspace Sampler
Issue:
There is a potential leak external to the Headspace unit that can cause loss of pressure.
Steps to Follow:
This article is a troubleshooting guide for when you suspect there...
This Information Applies To: Agilent 7693A Automatic Liquid Sampler
Issue:
This document explains how to replace the syringe carrier assembly in case you want to change from standard to high volume syringes, or if an Agilent support representative...