If the HiVac pump is off - the system is not under vacuum to be able to run. The MS source and quad cannot be heated until the system is under vacuum.
The directions on how to vent and pump down the MS are in the Operating manual and also the Troubleshooting…
The graphite must deform to seal. It can only deform one time as there is no spring-back. Install it with the inlet cold and the inlet pressure set to zero psi. I like to put the liner in, then place the seal around it using a gloved hand, then tighten…
I have been working with Thermo Orbitrap Exploris 480.
Which type of Agilent Q-TOF MS could have similar performance compared to the Thermo LC-MS instrument?
Since i retired from the previous company for private reason, I am trying to find another…
Thanks Chris. as you are expected, the "Round Thing" was main cause for this issue. i clean both the sensor and Vaccum Fan. Since it was more than 10 year front panel never been inspected. now it running again normally. Againn.. Thanks for your advice…
Hello srlee ,
This would not be a tested or supported workflow. While GCMS SQ data can be processed, in limited testing it appears that if Profinder see ESI data it assumes it is accurate mass. Even attempting to open up the mass filters to something…
Hi! We have been experiencing issues with the sensitivity of our SpectrAA-50/55 using a nitrous oxide/acetylene flame to quantify vanadium. We have been using this setup fairly consistently to quantify vanadium in solution for ~2 years now and have not…
Hello,
So first of all, if the entries you need are numeric and per compound, I would use a CC constants file. There are ways to create one big constants file for all your compounds and use keys values to pull specific columns by method or other values…
This Information Applies To: Agilent 7890/7820 GC Systems with SSL, MMI, PTV, or VI inlets.
Issue
Split vent trap replacement is recommended as part of the scheduled preventive maintenance. Sometimes, it has to be replaced when the inlet pressure...
This Information Applies To: Agilent LC pumps
Issue:
Stuck or obstructed check valves (Active Inlet Valve (AIV), Passive Inlet Valve (PIV), Outlet Ball Valve (OBV)) can cause issues such as no-flow or no-pressure, moderate to strong drops in pressure...
This Information Applies To: Agilent 1260 Infinity II multisampler, 1290 Infinity II multisampler, 1260 Infinity II SFC multisampler, and 1260 Infinity II bio-Inert multisampler
Issue
The needle bends while moving to the wash port or showing one...
This Information Applies To: Agilent OpenLab CDS 2.x
Issue
This article outlines the step-by-step instruction on how to overlay chromatograms for OpenLab CDS 2.x
Steps to Follow
Load data from result sets or single samples. See Load or add...
This Information Applies To: Agilent Lab Advisor Software, Agilent Multicolumn Thermostat
Issue:
Agilent Lab Advisor is a great tool to diagnose the issue of your HPLC. Running the tests that are relevant to your specific issue in the Service &...
This Information Applies To: Agilent OpenLab CDS (ver 2.x)
Content:
The following procedure shows how to review completed injections in a running sequence in OpenLab CDS (ver 2.x).
Steps to Follow:
Select the sequence from the Run Queue...
This Information Applies To: Agilent Liquid Chromatography (LC) systems
Issue:
Shutting down the HPLC for a long period requires following this general procedure to prevent damage to the system and the column.
Steps to follow:
Store the...
This Information Applies To: Agilent G7129A/B Autosampler with Sample Thermostat/Cooler G7167-60101 or G7167-60005.
Issue:
The autosampler may stop working from time to time, potentially giving off loud noises and switching off the light. The only...
This Information Applies To: Agilent 5977A/B GC/MSD with EI source, EI Extractor Source, or CI Source.
Issue:
During normal operation of the GC/MSD, the source will require cleaning. It is time to clean the source when:
There is a loss in analyte...