Hello,
We have been having issues with our ICP MS performance and tune reports. Both have been failing with low counts. We have changed the peri-pump tubing, remade all standards, remade the tune solution, replaced the torch, and cleaned the cones…
Hi,
Recently Run the Wavelength accuracy and signal to noise at FLD detector for qualification purposes but it not passing. In wavelength accuracy test got Excitation value 350 it ok but in case of emission got 393 nm its failed required minimum 394…
Thanks for advising, do other errors show up in the logbook?
Please watch the movement of the sampler arm during initialisation:
- Is it shaky or jittery? If yes, turn off module and clean transport rods using IPA & lint free cloth.
- Which position…
Hi Everyone, I am hoping I could get some advice with separating Aniline and DMSO with GC-FID.
We tried DB-Wax, DB-624, DB-5 so far but it did not work well. The retention time could be 2 min different max but the problem is DMSO has some impurities…
Hello, I have an issue when I try to install OpenLab CDS EZChrom Version A.04.07 The plan is to install EZChrom on a Citrix to allow the user to retrieve files from ECM for review or reintegration. I start the installation and select the Installation…
Hi I had a question about GC MS Split (gc to FID/MS). I have a thermo splitter that has no auxillary flow to counteract the ms vaccuum, but want to change out the capillaries that come recommended with the splitter. The recommended capillary dimensions…
This file contains a list of 14 commonly used consumables and parts for Intuvo 9000 GC .
Upload this file to your Smart Alerts software to automatically add these parts to the Master Parts List
Hi ronin, It sounds like you have a 7694A with the newer headspace mainboard (7694B) that didn't have the visible changeable battery. In this case the ability of the board to retain stored parameters has failed due to this battery failing. The only fix…
Hi Jennifer We had an GC-MS issue in the past where the rough pump was starting to fail and as a result kept drawing too much current, causing some of the fuses to fail. We also had an issue with a rough pump (on a LC-MS) which was blowing fuses when…
Hello isoterma, Maybe try a new jet ? Cleaning doesn't always get rid of restriction in the jet. I see your supply is supplying both detectors but if the pressure is on the lower side of acceptable raising the pressure may cure the issue. For the 6890…
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...