Hello,
we want to analyse a gas mixture (CO2, CO, propane, ethane and methane in hydrogen) with the HP 6890 Series GC System (G1540A). The gases are coming to the column via a six-way valve and after the column, there is a TCD and a FID detector. In…
Hello Agilent Community Our Zero Air / Nitrogen generator from Parker Balston broke down and it has been discontinued. The supplier does not offer replacement parts and they do not longer have a gas generator model with the combination Air/Nitrogen. Therefore…
Hello.
I'm hoping to seek some help for a problem I've been experiencing. We currently run a GC-FID with a headspace sampler testing for Acetic Acid, Propionic Acid, and Butyric Acid. I've been having issues reading the acetic acid consistently. Any…
Hi everyone!
I have brand new PGC Yokogawa 8000 equipped CP-Chirasil-Dex CB Columns with FID detector and Liquid Sample Valve (LSV) set at 170C deg. The problem is GC can’t separate m-Xylene from p-Xylene in low concentrations.
Component name…
Hi Crystalnipp (great username!!) Thanks for the clear answer I do have a question for you. We also run N2 make-up to our FID. As of now we run He and our night standby method is to leave the GC oven at 150°C with 0.5mL/mim He flow. We turn flame and…
Hi!
I've got a SEQ type CC that should be calculated only once during the reprocessing and a peak or group type that uses the result of the SEQ one. Since this the SEQ type CC is calculated inj number * peak number times.... is it possible to avoid…
Hi acraig First replace saptum until if you don't detected leak because sometime tiny leak in saptum cause low sensitivity. Second sometimes over tightening the ferrule connection of column to injector cause constriction the flow and reduce analyte at…
Are these FID issues only with this instrument or with others in your lab as well. If this is only on this instrument it might have to do with the H2 or air EPCs. If it is on other systems as well, you might want to check your instrument air. I have seen…
Larger are the orifices of the cones, particularly the sample cone, more chance you have to get the IF/Bk pressure errors. Usually when the sample cone is too used then is passing too much air or whatever trough it at the interface, and the ICP senses…
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...