The slope of the second plateau in the leak test for the quat pump of our Agilent 1100 fails. We are getting a negative slope of -2.18. Pressure and slope for the first plateau passed. Pressure for second plateau passed but the slope was negative giving…
What version of WinUV do you have? We were delivered WinUV 5.1.3 with .1042 (Part 11 security module).
The system was built with a tutorial in Adobe Flash but unfortunately for all of us, Flash was discontinued worldwide for security reasons. This meant…
Hi,
I suggest to run an auto-tune, then you will have a checktune report at the end of a sucessful auto-tune. If the auto-tune fails for the same reason you have mentioned and gives the same error message and you are sure the bottle not empty and nebulizer…
Basically you must create standard calibration level with level name as you wish, and u will not use this level for calibration, but only for comparing your QC in batch table with this "calibration level".
Hi Sabbas, The "Peaks and Valleys" option can be used to label both peaks and valleys on the same spectrum.
Right-click on any dataplot and click "Peak Labels", and under "Peak Type", select "Peaks and Valleys". If the "Threshold" value is set up according…
This is a compilation of some of the most useful GPC/SEC System resources, including recommended column and standards, software packages, theory and operation, user manuals and troubleshooting guides.
GPC and SEC Columns & Standards for Polymer & Plastic…
Hi martin.adams , you are exactly right, the peak width is small, therefore it is not giving the final S/N value. When I manually integrated the peak by increasing the peak width, it gave the value. It seems i need to fix the time range for the baseline…
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...