Hey guys, Our gradient test has been failing, got a new MCGV, replaced inlet and outlet filters, rotor seals, frits, switched degassers, switched lamp, cleaned flow cell, and still get a lot of drift...particularly when more than one channel is used.…
The model number on GC is 6890N (G 1540N). I am using a method with split injection with 50:1 split ratio on hp-5 column to measure concentration of a methanol/water mixture using ipa as an internal standard. The method has been successfully used giving…
Hey guys, I'm calibrating a UV/Vis, instrument model 8453, and I seem to consistently give varying results for the photometric accuracy test (with potassium dichromate). The protocol requires it be done under 4 minutes. My question is, why? Is it unstable…
Hello, I recently replaced a SmartCard in my 7700x and have not been able to communicate with the mass spec via MH. The IP settings appear to be correct for the peer to peer connection (192.168.1.127 PC ; 192.168.1.128 7700x ; 255.255.255.0 subnet masks…
On that model, the vacuum system must reach a certain level, to start the turbo pump. So, in your case, it could be the thermocouple is burned out, or the backing pump is not working, or the turbo controller has failed. If you have the capability, check…
Hi I am facing problem with 6420A where it was not communicating and giving MSQQQ driver error. we replaced the quad driver and it started communicating. and fater quad dip when we started for tune we where not getting any response. Lab advisor test attached…
Dear Mike, thank you for your assistance. After reinstalling the cables and powering the system, the initialization of the instrument fails with all kinds of errors: 9:9614NMP:E9614 8031 timeout 9:9604NMP:E9604 Microm datum 9:9328SEQ:E9328 fatal initialisation…
If you have ions in negative polarity and no ions in positive polarity, this means that one of the switching power supplies has failed. You'll need a trained engineer to identify & replace the part.
yeh sure. Using the expression box, I want the ISTDPeak ISTDReponsePercentDeviation. I can get it from the Field Value options but I want to get it in an expression then I can apply a function like: "Pass" if BoundItems["ISTDPeak"].ISTDReponsePercentDeviation…
The beginning of chromatography by the Russian botanist Tswett in 1903 was based on liquid phase chromatography (LC). Gas chromatography (GC) had its development in 1952. Supercritical fluid phase chromatography (SFC) began to be used in 1962.
The aim…
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...
This Information Applies To: Agilent 8890/8860 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 6000 Series LC/MS systems equipped with MS40+ rotary vane pumps
Issue
Instructions on how to replace the filter in an Agilent MS 40+ pump as part of annual pump maintenance
Background
The filter in the...
This Information Applies To: Agilent ICP-OES 5000 Series (5100/5110/5800/5900) with ICP Expert 7.5.x Software
Issue
The Recommended Routine Maintenance Schedule does not adjust for the number of samples analyses or the sample matrix, both of which...