Good day . i have another issue to my 8890. after replacing the fused silica in transfer line. tha air flow in FID is suddenly shutting down. then i try the detector diagnostic in the system it said test failed and need to replace the jet.
after replacing…
Hello,
this look like your plasma is not align with the cones. For the EM to failed it's difficult. You have to check for noise when it's doing it and if the counts are low when it's using mass 80. You can try to tune EM with mass 37 if you know where…
Hello,
I am currently developing a residual solvent analysis method by Gas chromatography equipped with a flame ionization detector. My sample is an API with a phosphate salt attached. One of the residual solvents of interest is triethylamine. When…
8/7/19
Hello,
I have had a fair amount of success with posted questions in this forum, so here is another one. I am interested in knowing more about whether the flame ionization detector I have equipped on my HP/Agilent 6890 GC is the correct detector…
Try to ignite the plasma, without fixing the shield plate. Due to poor quality of argon gas or leak on gas line, reflected power will be above the limit and prevent the plasma sustain. Sometimes, the plasma sensor fiber optics tip is damaged, needs to…
When I need information about detectors I use the following books:
Raymond P. W. Scott "Chromatographic Detectors - Design, Function, and Operation", Chromatographic Science Series Volume 73, Marcel Dekker, New York (1996). ISBN 0-8247-9779-5.
Raymond…
We have a lot of 1260s and 1290s in our lab, and as part of our sustainability initiatives are looking for ways to reduce our energy usage. Currently, all the instruments are left on (standby), and most of them also have the lamps on when not in use.…
Hi Guys,
I have a GC that does not seperate natural gas(maily C1 and C2 with small traces of C3+), it comes as almost one peak, and for condensate (C3+) it seperates C6+, and does not seperate C3÷C5,
I Have,
1: Readjusted the split ratio Many Many…
Hello Inês,
Typically we use the Performance report as a general health report of the instrument. Changing plasma parameters may cause the test to fail, unless you correct the limits. Moving the sample depth will decrease sensitivity and can increase…
Hello
I'm trying to setup report to have values in column "PASS/FAIL" green or red depends on result.
Can I do it as conditional formatting for column "PASS/FAIL" to mark FAIL as red based on text?
This column "PASS/FAIL" is custom field and…
This Information Applies To: OpenLab Software, Microsoft Windows 10
Issue:
During software troubleshooting with one of our remote engineers, you may be asked to restart Agilent OpenLab Services running on Microsoft Windows 10. Restarting Agilent...
This Information Applies To: OpenLab CDS (ver. 2.x) system
Issue:
CDS2.x data from one project is exported to an archive file (OpenLab CDS2.x Data Exporting as Archive file). The archive file can be imported to new projects or used in troubleshooting...
This Information Applies To: Agilent OpenLab CDS Software (OpenLab CDS 2.X and OpenLab CDS ChemStation Edition C.01.08 - C.01.10).
Issue:
This article outlines the process for returning a previously generated license file for both OpenLab CDS ChemStation...
This Information Applies To: Agilent 6400 Series triple quadrupole LC/MS systems
Issue
Autotune fails to complete.
Background
Agilent 6400 LC/MS systems use an Autotune algorithm to optimize the sensitivity and mass resolution of the instrument...
This Information Applies To: Agilent 5977 GC/MSD
Issue
GC/MSD maintenance or repair tasks will require removal and reinstallation of the ion source within the analyzer assembly.
Filament exchange
Replacement of insulators
Ion source cleaning...
This Information Applies To: All Agilent 5977 GC/MSD systems working in EI mode
Issue:
You can evaluate the 5977 MSD tune performance by reviewing the autotune report. Follow the steps in this article to review MSD tune performance.
Steps to...
This Information Applies To: Agilent 5975, and 5977 Series GC/MSD
Issue
After maintenance requiring venting of the GC/MSD such as a GC capillary column change, filament replacement or abrasive ion source cleaning there will be a decreasing chemical...
This Information Applies To: 5975 and 5977 GC/MS systems with MassHunter Acquisition software
Issue:
High-quality GC/MS data requires a low, and stable background of air and water present in the MS analyzer.
This article demonstrates a systematic...
This Information Applies To: Agilent 5975 and 5977 GC/MSD systems with MassHunter Acquisition software
Issue:
High-quality GC/MS data requires a low, and stable background of air and water present in the MS analyzer. This article describes how to...
This Information Applies To: Agilent 5977A/B GC/MSD with MassHunter GC/MS Acquisition Software
Issue:
This article describes the procedure to safely vent (shut down) the 5977A/B GC/MSD with Electron Ionization (EI)
The MSD will be damaged by incorrect...