Hello Guys, I am using Agilent 7890a GC with an FID detector. I using this GC in online mode to analyze reactor exit gases. I am currently studying the dehydrogenation of Methylcyclohexane over Pt catalyst. Recently I noticed that the FID response is…
Hi All,
I have an Agilent 7700 ICP-MS running MassHunter 4.6. Interesting issue - the instrument tunes just fine but when I go to run a sample, the data acquisition never stops; it continues well past the time it should have taken including rinse program…
Thank you very much for your quick attention. I take advice to use Labadvisor, however, the host computer is a windows 7 system and the built-in net framework is NE3.5, but LabAdvisor downloaded from Agilent site needs Net Framework version 4.7.2 , which…
I am new to GC. I am trying to make a calibration table for a set of fatty acid standards using Agilent 8860 (GC-FID)
After the derivitization step, analysis of the resulting methyl esters shows only the solvent peak. Usually a very high solvent peak…
Hello,
Does anyone know were the signal data for the live signal displayed in the online signal window is stored and/or how to access it in Chemstation Rev.B.04.03[16]? I would like to write a macro to run in the scheduler to periodically grab a live…
This is absolutely the wrong column. Ammonia and H2S need apolar thick films to be separated and no specialized Free-Fatty-Acid-Phase (FFAP). A CP-Volamines column would do (CP7448) . Ammonia elutes just after CO2 and before water, H2S after water at…
Hi All,
We have a 5977 MSD which came up with two errors following a site power outage:
"Source Heater Error: Timeout - temperature fails to increase under full power." "Analyser Heater Error: Timeout - temperature fails to increase under full power…
We have a GC-MA7890B with an FID detector and I are observing spikes in the baseline after we made a couple of changes.
We installed guard columns with unions on inlet and detector side, added a 2nd gas cylinder and required tubing, cleaned the FID…
First off, it is not the barcode reading that causes the vial leaking, but my best guess is that the barcode reading introduces a variable time, that then can cause a scheduling conflict. This scheduling conflict is then not handled, and the 7697A is…
Hi everyone I have a strange issue to report. We are using a 6890GC with FID and TCD that was upgraded many years ago to give use LAN communication rather than GPIB. It works great even though it is over 20 years old. Just prior to Christmas we installed…
This Information Applies To: Agilent 8890/8860 GC Systems
Issue
Early Maintenance Feedback is a useful feature on Agilent GC Systems and software that allows a user to monitor the maintenance needed on their GC. This feature allows for users to...
This Information Applies To: Agilent 8890/8860 GC Systems
Issue:
This procedure outlines the steps to view and clear the maintenance warnings on based on Agilent 8890/8860 GCs. You can also follow the onscreen instructions to perform maintenance...
This Information Applies To: Agilent 6000 Series LC/MS systems equipped with Agilent MS-40+ rotary vane pump.
Issue
Regular check of the rough pump fluid level in your MS40+ pump as part of regular 6000 LC/MS system maintenance checks.
Steps...
This Information Applies To the Following Products : All Agilent iFunnel and Agilent Jet Stream (AJS) 6400 Series LC/MS triple quadrupole systems, Agilent 6460A/C, 6470A, 6490A, and 6495A/B/C
Issue:
As LC Triple Quadrupole Mass Spectrometers (LC...