Our micro GC 990 is Natural Gas Analyzer B and B extended version with 3 channels (PoraPLOT U, 6-meter CP Sil 5 CB, CP-Molsieve 5A). We are having trouble with data processing. We have 2 calibration gases from Agilent (Natural Gas mixture and Universal…
Hi there, I noticed recently that the ECD back signal on Agilent GC 7890 (using it for trace gas analysis) is oddly spiking (while the FID is a straight, consistent line). It never used to do this. I just recently changed the inlet septum, could this…
Hi!
I still need help yes, please!
- On the machines (GC system and Injector) it just says HP6890 (see photos attached)
- The PC we employ is an old Windows XP running one, that was used to run the GC-FID before we want to control it with the serial…
Hi, I would suggest to test the same without column installed to the FID. If problem looks similar check for leaks at the FID gas lines and clean the FID. If not clean the inlet and replace the split vent line and filter. Maybe try a new column.
BR…
the abundance of ion 69. I rechecked the source and it doesn't look dirty. then I did an autotune it stopped on the width mass axis of the second quadrupole.
Finally, after 2 or 3 more attempts, I ended up completing the autotune with an abundance of…
Hi all,
I am currently troubleshooting a leaky 1260 infinity II HPLC-SFC-ELSD and want to carry out a leak test in the utility program, but i could not find a clear, detailed description on how to do this. Could anyone direct me to the correct resource…
Hi Community
I have an Issue on one of our GC-FIDs 6890N. I have large Peak Tailing, especially on the back of my chromatogramm:
What i already did:
- New Column
- New Septa/liner
- New Gold Plate
- Cleaned Inlet and Detector
- Re…
Any special procedures to prepare for cross-country shipment a 7890B with SS, PP inlets, heated valve oven, and TCD-FID? Also a 7697A with 100-vial tray?
*The system and method are given at the bottom of this post*
I am working with an Agilent 8860 operating a DB-624 UI (30m x 0.25mm x 1.4um) column with nitrogen carrier gas and split inlet (20:1). The system was shut down for approximately 1 year, and…
I have a Cary 3500 and running Cary UV Workstation Software 1.2 and Windows 10
I downloaded the new Cary UV Workstation Software 1.3 via the Agilent SubscribeNet.
first I ran the systemPreparationTool.exe
That finished without issues.
Then I ran…
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...