Hi, Here's a screenshot of the system suit, there is no blank subtraction The analyst said he has used the same processing method for a different run with no issues the only difference being that for those runs the MS setting was the same time as the…
When you say that there are no signs of a leak, have you run a pump leak rate test using Agilent Lab Advisor? If not, I would suggest testing this. If you're unlucky enough for your peak to elute just at the point when the outlet ball valve fails to close…
The basic tools I would recommend to have for GC maintenance:
Ceramic column cutter
1/4" wrench (column nuts)
7/16" wrench (gas fittings at back of GC)
1/2" wrench (replace gold seal on S/SL inlet)
Torx 20 driver (removing FID collector assembly…
Agilent GC 7890A, FID, Split Liner. I'm setting up the column to do Hexane injection testing. It was set up this way previously but the program had been deleted and the column removed before I started here. Front Detector/Column which is below baseline…
Hello and Help!
My GC-FID's inlet pressure stays at 0.7 psi and does not reach the setpoint of 10 psi. Makeup gas reaches the 25 psi setting. Liner and septa are fine. I unscrewed the inlet column nut and placed my finger at the bottom of the inlet…
Hello,
My laboratory runs a multilevel calibration with internal standards on a headspace-GC-FID. Our sequence is set up to replace each level of the curve after each calibrator is analyzed and then calculate the concentration of the analyte with the…
I'm going to be calibrating for ethanol on my HS-GC-FID 6890, but I'm having discrepancies between two standards. The standard that I will be calibrating with (Restek's Residual Solvents #1 34105) is 3000ug/mL in N,N-Dimethylacetamide. I'm verifying the…
Hi Dr. Know
Here is some of the information you have requested. Please let me know if you need any further info.
How is your system configured? FID detector using helium as carrier gas, nitrogen as makeup gas.
Which phases are the two columns…
Hi
I am pretty new to GCMS, so may need extra details on how to do things you suggest
I attached a picture of the set up of our gc system, so I can explain better. We recently installed a guard column using 30 cm piece of FS Deactivated 0.250 mm(Agilent…
First of all, thank you for posting publicly, I had not noticed this interface feature of MassHunter Quant, it looks very useful.
Were you able to get it working in 11.1?
If you're allowed to share your "IScriptable" folder, I would be very interested…
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...