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…
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…
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…
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…
We suddenly lost power during sample injection, when the power back, the autosampler got needle lock fail error message and fail to go back to needle seat, anybody could help? we did a cold start but not work.
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…
For the GC-6890 FID detector issues you're experiencing, here's a simplified approach to troubleshoot the errors:
Gas Supplies:
Make sure all gas supplies (utility, makeup, hydrogen) are on.
Check that the pressure…
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…
Thank you for the help so far. I was able to solve the problem on my results table by using the "left outer join" function.
However, the report will not print the individual peak chromatograms for the target ion or qualifiers if there was no peak detected…
This Information Applies To: Agilent ICP-MS MassHunter Software 4.x and 5.x
Issue
ICP-MS Instrument Control or Data Analysis Software will not open, or crashes shortly after opening.
Background
MassHunter uses configuration files to store...
This Information Applies To: Agilent ICP-MS MassHunter Software 4.4 and above (Rev C. and Rev D.)
Issue
The Glitch Resetter resets configuration setting files for MassHunter and can be used when the MassHunter software is exhibiting strange behavior...
This Information Applies To: Agilent ICP-MS MassHunter Software 5.x (Rev D)
Issue
It is best practice to note MassHunter Software Settings before running the Glitch Resetter, renaming MassHunter configuration settings files, or before upgrading...
This Information Applies To: Agilent ICP-MS MassHunter Software 4.x (Rev C)
Issue
It is best practice to note MassHunter Software Settings before running the Glitch Resetter, renaming MassHunter configuration settings files, or before upgrading...
This Information Applies To: Agilent ICP-MS MassHunter Software revisions 4.x and 5.x
Issue
How to clear or archive the acquisition queue? How to resolve queue task file errors?
Background
The Acquisition Queue ( Figure 1 ) lists all tasks...
This Information Applies To: Agilent Fluorescence Detectors G1321A, G1321B, G7121A, G7121B
Issue
This article describes how to diagnose a leak in your fluorescence detector (FLD) module.
Steps to Follow
Confirm the leak error originated in...
This Information Applies To: Agilent ICP-MS MassHunter 5.1 Software, SPS 4 Autosampler
Issue
The SPS-4 autosampler (ALS) may need to be reconfigured after the Glitch Resetter tool is used to reset the software or after a change from a different...
This Information Applies To: Agilent G4208A Instant Pilot
Issue
This article describes how to switch the illumination of the autosampler on or off (if available) using the G4208A Instant Pilot.
Items Required
G4208A Instant Pilot for Agilent...
This Information Applies To: Agilent 7683B Automatic Liquid Sampler
Issue:
O nly use this alignment procedure if the injector hardware configuration has changed or if the Align Mode light comes on.
Agilent does not recommend performing this procedure...
This Information Applies To: Agilent MassHunter data acquisition software and MassHunter Quantitative Data Analysis Software
Issue
This article explains the difference between quantifier and qualifier ions and provides some general guidance on quantifier...