Hi dhanong, If you have 10 GC at 2 fids per GC all on at the same time using 40ml/min of H2, thats only 0.8litres per minute. I am not sure what the max would be, but I have seen that many GC on 1/8th inch line. The tricky part is when you get to the…
My cary 5000 UV-VIS-NIR shows Error code 9:9339SEQ NIR wavelength calibration failed and 9:9303SEQ Unable to initialize the instrument. What is wrong with this machine and how could I fix the problem. Thanks a lot for your advice in advance. MK
I have a simple syntax question (I think). I am trying to get the statement below to work, but am having a problem with the syntax at the Select statement. Any advice would be great: I tried this and it is failing at " x. GetCustomField ( "Sample Weight…
Hi all, I'll contribute to this topic with a few comments. I'm in no way a GC expert but I have been working with a GC-MS, basically on my own, for about a year now and I have been trying to gain knowledge on how to best operate the machine. Please correct…
Hi, we are currently unable to get Helium. We'll run our Helium gas inventory in a few weeks. Between other applications for our facility, it is used as a carrier gas on our GCs for solvent analysis (validated method). I'm copying our method below. Would…
Hello, thanks, we are using the version A.04.09 Agilent OpenLAB CDS. And yes, RSDRtDimethyl ist the optional variable Name from the Summary Calculations (RSD from Retention Time). The RSD (from Summary Calc) Format is a Number with 3 Decimal Places. I…
Hi James, Just a followup on this. I changed the Lan adapter with G1530-62010. However, I still had a deconnexion this weekend and when sending a ping to the GC, the response time is random and high (between 1ms to sometimes 32ms). Is there anything else…
I have been working on an old VWD that was not used much. After running the intensity it failed only on the minimum with a 400 of >6400 cts. So more water was flushed through it over night and the same fail reoccurred. Rebuilt the cell using the g1314…
It is really rare that the transferline itself fails. It's a brazement attached to the MS with three bolts and an O ring seal. The transferline column nut threads get messed up if the column nut is overtightened. Using a 10x32 die to clean the threads…
Hi all, The GC in my lab is Agilent 7820A that my supervisor bought it 2-3 years ago. The configuration of GC is as follows: - One detector FID - One inlet Split/Splitless - One line for gas sample and One gas sampling valve. However, I am not sure there…
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...
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...