Hi Marty,
Thanks for taking the time to respond. I saved the data to a file and then printed the file and it was properly formatted. I think that there is an issue with printing to paper from the method. Since this is a long unsupported CS revision…
Hi Abbey
Thanks for the info!
So far we have only been running this on various forms of olive oil. But the waves in the baseline remain regardless of MOAH contant. I have run samples that were analyzed by outside labs (with COA) that contain 0ppm…
From a quick google search, it appears that hydroquinone may be detectable through LC/MS (ESI) in both positive and negative mode. It forms a protonated molecule ([M+H]+) at m/z 111 in positive mode and two ions at m/z 108 and 109 in negative mode.
…
奔跑的小短腿 , While an LC/MS system may operate in both positive and negative ion polarity modes, it will switch between the two polarities based on the user input in the acquisition software. It is not possible to acquire in both polarities simultaneously…
Hi Vincenzo,
Thank you for your answer. We have the CFR environment. WinUV 5.1.3.1042. (1042 indicates Part11).
I’ve looked for method files for the following apps; Advanced Reads which are .MAB, Concentration .MCN, Scan .MSW, and Simple Reads .MSR…
Hello, you can export sequences into a new project file.
- Select a sequence of a loaded project and click Export data in the [project management] window.
- The now open window allows you to select more sequences from this project to export (see…
Depending on the software, linear and/or polynomial regression models are supported. Strictly speaking, linear fits can only be used for linear columns. However, it is also observed here that a polynomial fit may be more suitable depending on the column…
As you have already mentioned, HFIP is a very aggressive solvent that has a high density at a low boiling point.
Note that only the external degassers G1322/G7122 are compatible with HFIP. HFIP analyses are usually run with KTFAc as a salt additive…
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...