I have GC-7890B -TCD -FID . I want to maintain the flow of gas sample to be same as calibration gas flow . Are there any option in GC to give same flow of sample and calibration gas or shall i use flow meter at the outlet of GC .
Hi galderson,
that's a typical "it depends" answer. For the carrier gas line I assume you use at least a 5.5 or even 6.0 gas quality? Anyway depending on the gas quality there are different concentrations of impurities:
Now you need to…
The 6850 & 6890 LAN adapters are very often configured to respond to a "BOOTP" server program running on the network they are wired to.
So upon powerdown the GC loses its previously assigned IP address, and later upon powerup the GC sends a request…
We recently reactivated an old G1946D with ESI-source which had low signal intensity before shutdown. After Cleaning everything, the signal intensities while autotuning with ESI-mix where better, but while trying to tune vcap it fails at 1700-2000V with…
Thank you James, The software that we have, runs in a very old HP computer with Windows 2000 PRO. The equipment´s software only runs in this computer and it has had many fails lately. For it reason, we would like to buy an updated software that it can…
When I want to save or export a worksheet, does the software give me the option where to save it? When you save a worksheet, it always saves to the database. It will appear on the home page within Mercury. When you “export” either the data as .csv (via…
I am not able to connect to the instrument using Lab Advisor because the instrument is connected to OpenLab. We should be able to disconnect using "Close Connection" from the OpenLab Control Panel, but it gives the following error when I try:
Agilent…
Situation: User installed Openlab C.01.05 to run an LCMS system. Was able to configure the sytem, but when they launched they would see the following error in the initializing instrument phase: MSD Error 'Installl module, 'C:\Chem32\CORE\HPMSACQ0.DLL…
Hello,
We are currently running an Agilent 6460 QQQ LC/MS.
After a seemingly successful run we went to go analyze the data and found that all of our peaks had shifted considerably. We concluded that this might be due to the replacement of our inline…
Hello, everyone! I see a similar thread with masshunter , but not chemstation. Do I need a macro to do the job with retention indices? Are such macros available for download? I'd like to identify some VOC by indices in an n-alkanes scale in a hardware…
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...
This Information Applies To: Agilent HES source, Agilent 5977 Series GC/MSD
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 response not improving...
This Information Applies To: Agilent 5977 and 5975 Series GC/MSD systems
Issue
The autotune fails and reports the error Tune action stopped: Gain and offset = 0 and peaks are too narrow!
Resolution
The MSD autotune program is run after routine...
This Information Applies To: Agilent ICP-MS systems (7700/7800/7850/7900/8800/8900)
Issue
Condition new or cleaned ICP-MS skimmer cones and sampler cones by aspirating a Conditioning Solution before use.
Background
Drift up can be a sign of...
Turn On the GC/MS Interface and Oven Using OpenLab CDS
Multiple Results
This Information Applies To: Agilent GC/MS instruments controlled by OpenLab CDS software
Issue
Turning on the GC/MS interface heater and Oven using OpenLab CDS software.
Steps to Follow
From the Home tab, click Method > Instrument Setup...
This Information Applies To: Agilent ICP-MS systems (7700/7800/7850/7900)
Issue
The signal monitor function in MassHunter can help with troubleshooting low sensitivity, carry over, contamination, or high background. It can also be used to optimize...
This Information Applies To: Agilent UV detectors (Variable Wavelength Detectors, Multiple Wavelength Detectors, and Diode Array Detectors)
Issue
Checking accumulated hours on the UV lamp.
Steps to Follow
There are four ways to check the accumulated...
This Information Applies To: Agilent 7700/7800/7850/7900/8800/8900 ICP-MS
Issue:
Poor internal standard (ISTD) mixing can cause high relative standard deviation (RSD).
The recommendations in this article are applicable if:
It takes a long...