How many total runs on this system?
8890 and Intuvo: Service Mode, Instrument, Usage
7890: Service Mode , Diagnostics, Instrument Status
6890: Options, Diagnostics, Instrument Status
A 6890/5975 probably has many, many runs on it and passed…
There could be issues with either control signals to the HED power supply or the power supplied to the HED power supply. These electronic issues are down in the depths of the instrument and should be handled by a trained service engineer. Please contact…
A bit late maybe, but you can set the printer within the macro using the MYPRINTER = "name of printer". Use the command before your STARTPRINT command, and then at the end of the macro remove it (REMOVE MYPRINTER), so that it will only be active for the…
Here's a link to the video from this event!
(+) Diagnostics From Your Desk, Troubleshooting From Your Kitchen Table - Follow-up Discussion - Forum - Gas Chromatography - Agilent Community
You should always consider that after re-igniting the lamp, it typically requires 60-90 minutes establishing a stable detector signal.
Based on this it does not always make sense and saves lifetime shutting off the lamp.
Keep constant flow 1.2 ml/min into the MS and do a Pulsed Splitless injection, tips in the help section of the Operating manual. Your system's diffusion high vacuum pump can only handle 2.0 ml/min maximum so do not exceed that ever.
If you have a 30m…
In Manual Tune, PFTBA closed, set the scan range to 10-100, then click on the spectrum scan button. The spectrum will show repeatedly in the middle window to the left at the long red arrow..
Beautiful. Does the spacing change with a different column flow rate? If this is 1.2 ml/min, for example, is it different with only 1.0 ml/min? If it changes and you did the inlet and column maintenance properly, the issue is before those. If it does…
How do you split the sample? Is it two different injection ports? Two different columns into the injection port? Or a two way splitter - purged or unpurged?
Are you injecting split or splitless? Please upload the acqmeth.txt file that is in Windows…
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...