Sounds good. Just wanted to double check why it was not working. I had a noise and drift test fail before on LabAdvisor and it was due to a test not functioning properly. The Leak test and Pressure test both passed and system has been working fine. Thanks…
Do you have the Polyboost on? If not, the wavelengths below 190nm will fail. It would be good to know which wavelengths are failing. On the wavecal tab, click "Store dark current" and see where the wavelength calibration file is being saved. Then using…
Hello community, I set up an Agilent 6890 (Software: ChemStation A08.03). A few seconds after I start the GC, the error message "Shutdown ( # 6 ): Back Inlet Flow Shutdown" is shown on the display. The settings of the Back Inlet shows that the pressure…
Hi all We are using GC6890N in our lab to analyze dry gas, the GC with TCD and FID and four columns Two weeks ago We noticed something strange in the results like a cycle. N2 value it goes up and then goes back down. Is there any advice to solve this…
Hello everyone!
Which one do you prefer in 2019, Openlab CDS Chemstation edition or Openlab CDS-2 and why, some standard list of pros and cons maybe?
The 7890B instrument has 2 FIDs, two capillary columns in the same oven, each column connected to…
Hi,
I'm having some persistent calibration issues for an ICP-OES analyzing Al, Ca, Fe, K, Na, Ni, P, Si, V & Zn in the range of 0.05 - 1 ug/mL.
The following lines (Al 237.312, Si 185.005 and Na 589.592 nm) keep failing the calibrations due to lowered…
Can anyone explain the negative dips in the MS TIC and why they are perfectly aligned with the spikes in the FID? Is there any troubleshooting that I can do to relieve this problem? thank you
7890 GC with 5977A MS (inert source)
Mass hunter B.07…
When running hydrogen carrier your source should not need as much physical cleaning (compared to helium carrier) because the H2 has a scrubbing effect. So far I've been told that there is no physical cleaning on the HydroInert source as it could damage…
Hi Lars, I would add an input from my experience that H2 carrier gas may cause some chemical reactions on some specific polar columns and compounds. Two scenarios I have encountered were (1) analysis of C4-C5 olefins on an AL2O3 PLOT column where some…
This Information Applies To: Agilent ICP-MS systems (7700/7800/7850/7900/8800/8900)
Issue
How to perform routine maintenance on the Agilent ICP-MS Torch.
Background
Deposits on the torch can be removed by routine maintenance. Maintenance frequency...
This Information Applies To: Agilent ICP-MS systems (7700/7800/7850/7900/8800/8900)
Issue
The torch, bonnet, and platinum shield plate must be installed after performing maintenance, or replacing with new components.
Items Required
Standard...
This Information Applies To: Agilent ICP-MS systems (7700/7800/7850/7900/8800/8900)
Issue
The torch, bonnet, and shield plate must be removed and inspected during routine maintenance, and when troubleshooting plasma ignition problems. Faults with...
This Information Applies To: Agilent ICP-MS systems (7700/7800/7850/7900/8800/8900)
Issue
This procedure tests for an air leak in the sample introduction system, or fault with spray chamber draining, by sealing the end of the torch with a piece...
This Information Applies To: 7700, 7800, 7850, 7900 Agilent ICP-MS instruments
Issue
Error messages related to gas flows can cause the plasma to shut off or disable plasma ignition.
The troubleshooting procedure in this article is applicable for...
This Information Applies To: Agilent ICP-MS systems (7700/7800/7850/7900/8800/8900)
Issue
Error messages related to water flow or water valve issues can cause the plasma to shut off or disable plasma ignition. While a warning message will still...
This Information Applies To: Agilent Fluorescence Detectors (FLD)
Issue
Sometimes it’s necessary to change FLD EX and EM wavelengths during a run since not all components will excite or emit at the same wavelengths. However, when the wavelength...
This Information Applies To: Agilent Analytical Scale LC Systems
Issue
To troubleshoot high backpressure within an HPLC system, it’s necessary to understand the expected pressure throughout an operating system. The total pressure for an LC is measured...
This Information Applies To: Agilent LC Samplers except dual needle multisamplers
Issue
High pressure in the LC sampler is sometimes due to a clog in the needle seat assembly, the needle, or the sample loop. The needle can pick up sample particulates...
This Information Applies To: All OpenLab CDS ChemStation Edition software-Standalone Workstation
Issue
After launching OpenLab ChemStation Online, the following error is shown: “ChemStation ChemMain has stopped working” . OpenLab ChemStation Online...