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…
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…
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…
I have an Agilent 7890A with a split/splitless injector and FID. The FID has been experiencing a falling baseline signal that triggers the instrument to relight the flame unless I lower the lit offset value. As it gets worse, I have to set the lit offset…
HP 5890 II not responding. After power-up, initiates "Passed Self Test" routine but stalls at that point. The oven works, and FID is ignited but the light by "Not Ready" is lit up. ChemStation program states: "GC Not Found. Check that GC is Correctly…
Hi, I am wondering if the FID detector requires nitrogen make up flow while in standby mode or is it sufficient to have the FID idle at a temperature above 100 to protect it in downtime.
Thanks.
Additionally, the detector will not light regardless of whether the column is installed or not. I can hear an ignition happening but the detector fails to stay lit every time.
Hi, Have this issue with an Agilent 6850 GC: The system performs normally during the pre-run: the oven temperature, front inlet total flow/inlet pressure and signal 1 valve values are all normal/stable. When we switch to the test method and start sample…
Performing a GC/MS Manual Injection Using MassHunter Software
Multiple Results
This Information Applies To: Agilent GC/MS systems using MassHunter software
Issue
Manual injections are needed for a GC/MS without an automated sampler. They are also used for troubleshooting specific issues such as no peaks, lower peaks than expected...
This Information Applies To: Agilent GC systems with Gas Clean Filter
Issue
If you have determined that the Gas Clean Filter is saturated, it mus be replaced (see the article When to Replace the Gas Clean Carrier Gas Filter ).
The steps described...
This Information Applies To: Agilent GC Systems 8890/8860/Intuvo 9000 /7890/7820/6850/6890
Issue
General guidance on GC column flow rates, outlining the correct column flow rate for optimal compound separation depends on the column internal diameter...
This Information Applies To: Agilent GC Method Translator
Issue
Detailed instructions on translating methods using the GC Method Translator.
Background
For ideal use of cases and applications with the GC Method Translator, see the article...
This Information Applies To: Agilent Solvent Vent Calculator
Issue
The Solvent Vent Calculator estimates the Agilent solvent vapor exit (SVE) accessory valve timing based on solvent type, oven temperature, vent flow, and pressure.
Background...
This Information Applies To: Use of the Agilent GC Method Translator
Issue
How to correctly use the GC Method Translator to convert a method to suit a different GC configuration or to optimize a method.
Background
The GC Method Translator...
This Information Applies To: GC Pressure Flow Calculator
Issue
Instructions for the correct use of the Pressure Flow Calculator.
Background
The Pressure Flow Calculator uses the column dimensions, oven temperature, and detector outlet pressure...
This Information Applies To: The Agilent GC Vapor Volume Calculator.
Issue
The Vapor Volume Calculator determines the vapor volume based on the injection volume, solvent type, inlet head pressure, and the inlet temperature. This calculated vapor...
This Information Applies To: Agilent GCs
Issue
Agilent provides free GC calculators and tools to assist with method development.
Background
Tips : The calculators are available for downloading at Agilent.com .
Vapor Volume...
This Information Applies To: Agilent GC Systems
Issue
The Agilent Gas Clean Carrier Gas Filter delivers faster stabilization times for increased GC productivity, removes oxygen, moisture, and hydrocarbons from the carrier gas for MS applications...