Hello, Fast determination of syngas using packed columns and standard gas chromatography in less than 5 minutes or even 2 minutes(!) Is it really possible to achieve? The attached poster might give an idea how to configurate a standard gas chromatograph…
Poster - Fast Standard GC - Determination of Syngas.pdf
Hello,
That looks like a standard IS calibration using area percent. The purity of the standard can be entered as the compound multiplier. I would start by searching the help for calibration, internal standard, and mass percent calculations. You can…
The attached guides provide information about differences in OpenLab CDS for users upgrading from ChemStation or EZChrom.
Change Log:
15Mar2022 Updated EZChrom document to correct a reference.
29Nov2022: Added a note to the ChemStation…
In your method's Windows subdirectory is a file called "acqmeth.txt". Please post that as it contains all of the GC and MS parameters you are using. Also post your latest autotune report.
Residual solvent headspace - is there water in the sample? How…
Hello,
It kind of depends on the version of EZChrom you are migrating from as to the differences you will see as some changes have been made to the EZChrom integrator over the versions. CDS 2.x does contain the EZChrom integrator as a choice in the…
This Information Applies To: Agilent GC Systems
Issue
A shift in retention time can occur for single, multiple or all peaks.
Other chromatographic problems are identified in Basic Troubleshooting for GC Systems . Regular maintenance of your instrument...
This Information Applies To: Agilent GC Systems
Issue
A change in peak size can occur for single, multiple or all peaks.
Other chromatographic problems are identified in Basic Troubleshooting for GC Systems . Regular maintenance of your instrument...
This Information Applies To: Agilent GC Systems
Issue
Peak splitting is when a single compound is shown in the chromatogram as two peaks usually unresolved, or one of the peaks is a shoulder.
Other chromatographic problems are identified in Basic...
This Information Applies To: Agilent GC Systems
Issue
This test isolates the point of contamination to the sample introduction system, which includes the gas supply, gas supply lines, and the sample inlet. It does not include the syringe or autosampler...
This Information Applies To: Agilent GC systems
Issue
Peak tailing is present in a chromatography peak when it has an excessive asymmetry with a trailing edge. A normal peak is almost symmetrical.
Other chromatographic problems are identified...
T his Information Applies To: Agilent 8890/8860/7890/7820/6850/6890 GC Systems with TCD (Thermal Conductivity Detector)
Issue
Problems observed with thermal conductivity detector (TCD) results can have different underlying causes.
Resolution...
This Information Applies To: All GCs, 6890, 6850, 7890, 7820, 8890/8860, Intuvo 9000
Issue:
This article is a troubleshooting guide for when the Flame Ionization Detector (FID) does not ignite or the flame keeps going out.
Cause:
If the FID...
This Information Applies To: Agilent GC Systems with Flame Ionization Detector (FID)
Issue:
The Flame Ionization Detector (FID) jet could become clogged with ferrule material, column bleed, or heavy molecular analytes. The clogged jet will affect...
This Information Applies To: Agilent GC Systems with Split/Splitless (S/SL) inlet
Issue
Different liners are required for different high concentration, split analysis techniques including:
General use liners
Auto inject, general use
Auto...
This Information Applies To: Agilent GC Systems with Split/Splitless (S/SL) inlet
Issue
Different liners are required for different splitless trace analysis techniques including:
General use liners
Pressure, temperature, volume (PTV)
Hot...