While running oils and extracts on GC,the basline shows wandering as in the attached photo below in the range from 75 to 100 mins.The problem is not related to specific temperature because it appears at the beginning of the run,middle and at the end in…
Please try to remove the sample probe and perform the initialization. If it completes successfully make sure the probe is not touching or causing the movement issue. If it failed. Call the response center to get more help with the SPS-4. It could be a…
Hi all,
I have a 6890A GC with a FID. We recently acquired the instrument and I have been running standards up to test methods. I have been getting signals that seem suspiciously low.
I am injecting Matreya Bacterial CP FAME mix (C11-C20 methyl esters…
Hi Mohammad, Thanks for your thought, detector temperature is not extremely high or low. I did monitor temperature for FID and inlet the whole time even during the injection. It was stable and maintained for hours/days. Method that I was using I had checked…
Hello everyone,
I have a 8890 GC-FID that I've just started running.
I want to create a "shut down" method that turns off (or lowers) H2 and Air once a run is completed or that can uploaded at the end of the day. The goal here is to keep the instrument…
Hi guys, I'm experiencing regular times ghost peaks starting at 120°C to 295°C.....my setup is GC-FID 6890, Low pressure drop, Ultra Inert Liner with glass wool, column HP1 widebore..... I have cutted the inj/det 5 inches of column, heated at 295°C with…
I am using an Agilent 6460 Triple Quad and have been dealing with a terribly low signal for the past few days, the signal appears at an abundance of 30 to 50 as a baseline only. I analyzed different compounds with different concentrations, the Tune mix…
I am trying to run a Injector Precision PV test using the conditions described in the software: caffeine standard (125 ug/mL) and HP ODS Hypersil 5 um, 125 x 4 mm part 7982618-564 . The method uses 85:15 Water:ACN mobile phase at 0.8 mL/min. The test…
Hello mkaadan ,
What I meant by a "low" failure rate (notice the quotation marks), is that it is likely not an indication of a leak, as that would result in a lot more samples failing, or potentially all of them. By no means I wanted to minimize the…
Hi,
there is quite a big drop in sensitivity in August. that's interesting. Are the MassHunter settings for the "Configure Ignition Sequence" "Standard Tune" and are all the Startup tasks, beside the P/A factor and EM run succesfully? please run then…
This Information Applies To: Agilent MassHunter 11 and later
Issue
Generating Acquisition Desktop and Quantitative Analysis shortcuts.
Steps to Follow
Double-click the Control Panel icon on the desktop or select Windows Start menu > Agilent...
This Information Applies To: Agilent MassHunter Workstation for LC/TQ and MassHunter Workstation for LC/TOF and LC/Q-TOF
Issue
How to view the MassHunter Data Acquisition Software Logs entries, change settings, and export the Logbook for archiving...
This Information Applies To: ICP-MS MassHunter with User Access Control (UAC)
Issue
It is necessary to update the database folder path in Change User Access Control:
After creating a new database in SDA with ICP-MS MassHunter.
To view a batch...
This Information Applies To: Agilent GTA 120, 240/280 GTA Furnace
Issue
Over time, the electrodes may become pitted or eroded and users may see a decrease in precision or begin to experience the "Tube fault" error when new tubes are installed. If...
This Information Applies To: Agilent GTA Furnace and Flame Instruments, Agilent 240FS/240GFAA/GTA120/PSD120
Issue
There may be occasions when users need to remove GTA furnace center block workhead (instruments with both Flame and Furnace capabilities...
This Information Applies To: Agilent GTA 120, 240/280 GTA Furnace
Issue
The shroud should be replaced annually, or when there is evidence of damage caused by mechanical shock or contamination from liquid spillage.
Items Required
Shroud Removal...
This Information Applies To: Agilent GTA 120, 240/280 GTA Furnace
Issue
Before replacing the electrodes and/or shroud, the GTA Furnace workhead will need to be disassembled. After replacing the electrodes and shroud, the GTA Furnace workhead will...
This Information Applies To: Agilent 5200/5300/5400 Fragment Analyzer, Femto Pulse, ZAG DNA Analyzer
Issue
After starting a run, the run is aborted with the following error: Current = 0.0uA, Expected range: 5 - 3000.
Steps to Follow
Check...
This Information Applies To: Agilent OpenLab CDS 2.x in file system configuration
Issue
Sometimes, you will need to change the Projects Root Path / Project Storage Path . This article outlines the procedure on how to change it.
Background
...
This Information Applies To: 5000 series ICP-OES (5100,5110,5800,5900), AVS 4/6/7
Issue
Steps to bypass the AVS to troubleshoot poor performance on the ICP-OES
Tip : These steps should be completed after the Subsystem Communication...