Hi Sabbas,
if you have measured a batch and click the print button, all method parameters are shown in the report. I’m not sure if you can print the report of method solely without having measured a sample. I would in that case just measure a blank…
Here a list of suggestions to try if encountering an error 155 on ELSD:
Make sure driver is at least A.01.07 DU1. Along with that, make sure the firmware and software is compatible with the driver.
Consider lowering the data rate (40 Hz if this…
As " alfausett " said, in case of headspace much depends upon sample matrix along with other factors. Honestly i am bit surprised that you are fine when injecting as liquid. In case of the liquid majority have issue with acetic acid peak shapes at some…
It all depends how old is your column or how it is handled when not in use. This is pretty much normal with majority of the columns when used in temperature programming. Some vendors claim to provide "zero bleed" columns but honestly there are many if…
The Digest of upcoming webinars has been updated as of March 7.
Notable additions include:
Atomic (1)
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Chromatography and Mass Spec (12)
Vacuum Solutions Series (3)
Check Out:
The Analysis of Petroleum…
Iron(II)fumarate is a salt with a melting point of 280 °C and therefore not suitable for gas chromatographic analysis. You need to remove the metal ion and set the fumaric acid free, get the sample dry to derivatize it with BSTFA or do an esterification…
Hello,
The infinity II is the HPLC hardware, that can be controlled by several different Agilent software platforms CDS 2.x, Chemstation, EZChrom plus third party data systems. In most of the Agilent software, if you can find the help menus, there…
This Information Applies To: Agilent GC Systems
Issue
Excessive baseline noise can be introduced at different points including sample preparation, sample introduction, separation, and the detector. The excessive background can cause reduced signal...
This Information Applies To: Agilent GC Systems
Issue
Baseline instability that is not reproducible across multiple runs can be introduced at different points including sample introduction, separation, and the detector. The baseline instability...
This Information Applies To: Agilent GC Systems
Issue
Peak fronting is present in a chromatography peak when it has an excessive asymmetry with a leading edge. A normal peak is almost symmetrical.
Other chromatographic problems are identified...
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...