Hello Community,
I have been noticing random peaks, made from 1-2 data point(s), appearing in my samples where nothing should come out.
In the image below, the first chromatogram is the way it's supposed to be while the others show the mentioned peaks…
Good Morning, Just setup a 7890B GC with Empower 3 for the CDS Built an instrument method to use both the front and back injection ports. I have a 6890N with front and back FID that we run a lot of samples on so this isn't a new method development. +…
Hello!
Hoping that everyone is very well, I wanted to know if they can help me, from one day to the next the software stopped responding and asked me in the first instance for a user and password. Letting the software in and just letting a single sample…
What was the EM Voltage before the source cleaning and filament replacement? How old is the electron multiplier? They do not typically fail, the tune EMV setting slowly gets higher and higher. They typically work fine up to ~2500V or so and then the gain…
The Digest of upcoming webinars has been updated as of November 1.
Notable additions include:
Chromatography and Mass Spec (1)
Dissolution Discussion Group (4)
LC & LCMS (2)
Check Out:
Elemental Analysis of Lithium-ion Battery Samples…
Hello! I realize this is an old post but wanted to provide more details in case other users encounter the "Make directory failed" error in the future.
This is captured in Software Status Bulletins (SSB's) in a few places.
The solution, if you encounter…
Yes, the peaks are changed at every time in response, and may be a little shifted in retention time, but Ii tried to make autotune , but it failed , so Any suggestions
Hello, I am looking at flavor compounds on a GC/FID. All of my peaks integrate really well except the aldehydes. There is a slight baseline rise long before the actual peak somes out and the GC begins integration at that time. I've tried changing the…
Hello
I recommend to replace X-belt.
P/N 5410047500 Belt timing – 880 mm
When initializing if the belt tension is not enough, It could be failed.
Please check it.
Hello, I am having troubles with the MS40+ pump I use for my ICP-MS machine. I did an oil change yesterday and cleaned out the inside as well as the filters (the oil was pretty low since I had forgotten to check it for a while) and now when I go to turn…
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...