Hi everyone,
we wanted to clean the ion source for the first time.
The videos were unfortunetly not very helpfull. We lowered the temperature of gas and sheath gas and let it cool to 25°C, and then lowered the flow rate of the gas. if we would put…
Are you interested in GPC/SEC technology and want to deepen your knowledge? Then the following two classroom training courses at our Agilent University are just right for you.
Note: The course is in German, with English slides. The course will be held…
HPLC 2024 will be held from July 20-25 , 2024 in Denver , Colorado this year. We will host our Reach Your Summit Reception which will be held on July 23 rd from 6pm – 8pm local time at Earl’s Kitchen + Bar. At this event, you will find different areas…
Hello Ruthvn Please share some photos of your chromatograms and check for void volumes in capillary connections. Once the issue occurs, does it keep occurring for subsequent injections or do the resolution and acceptable peak shape come back in later…
Hello LCMSvsLCUV Would you be able to share more details about what you are trying to achieve please, including the instrument set up, application, analyte of interest and the column part number?
We are having a issue clearing up these valleys/dips after our peaks of interest. So far we have confirmed no leaks up to the column (pressure and leak test passed), new column, new guard column, new mobile phases, new standards, and several purges through…
Hello,
I will assume you mean you are using the backup restore tool for CDS 2.4 not the ECM XT import scheduler. If you have setup an import scheduler task to back the ECM-XT system up that would be self-referential and would not actually back anything…
Hello,
Although limited Chemstation does save some confg files and other information at the OS user level, so creating a new OS user would clear those files. Also, some printer configurations can cause problems with Chemstation as it tries to read…
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...