Hi, the peak area has no influence on the calculation of Mw when measuring with concentration detectors only (RI, UV, ELSD e.g.). When performing Viscometry & Lightscattering measurements, the peak area is needed for the calculation. As an additional…
Occasionally the tune files get corrupted and you need to go back to an old one or start again from the default atune.u file. Glad the problem is resolved!
Part 1 included many questions and some answers about the maximum abundance that should be detected at the electron multiplier. Another important consideration is how much sample should go into the column.
See Which Electron Ionization Ion Source? Part…
Thank you for taking a moment to review the Community Guidelines. You agree to all of the guidelines posted and linked here when using the Agilent Community. These guidelines are here to help you be a valuable contributor to the community and make sure…
Hi, I have an old 6890 with a jet direct card. We lost power to the instrument and since then it has not been able to connect to the PC. I tried updating the bootp software with the correct mac address and power cycled instrument with the same issue.…
Support and educational resources for the Microplate Centrifuge and Automated Centrifuge Loader .
Automation Solutions Knowledge Base
Microplate-Handling Device Guides
PDF user guides
Support Documents
G5582A Centrifuge Installation Checklist…
-Have you tried a diferent column ? An old column could have retention time issues and peak distortion.. -Have you had any pressure fluctuations during your run ? Try running a Pump leak rate test, to see if the problem is not in the pump-head. -Do a…
This Information Applies To: Agilent ICP-MS (7700/7800/8800)
Issue
How to replace the Foreline Pump Oil Mist Filter in the DS 402 foreline pump.
Background
The oil mist filter element should be replaced yearly , or when the level of oil in...
This Information Applies To: Agilent ICP-MS (7500/7700/8800)
Issue
How to replace the Forline Pump Oil Mist Filter and Odor Element in the E2M18 or E2M18F?
Background
The oil mist filter and odor element should be replaced yearly, or if the...
This Information Applies To: Agilent ICP-MS (7500/7700/8800)
Issue
How to replace the Forline Pump Oil in the E2M18 or E2M18F?
Background
The E2M18 oil should be replaced at least every three months or when the oil color indicates it needs...
This Information Applies To: 4150 TapeStation, 4200 TapeStation
Issue
How to deal with a TapeStation Electrode Cartridge change is due warning message.
Background
The Agilent TapeStation controller software will notify users to replace the...
This Information Applies To: Agilent OpenLab CDS
Issue
Sometimes the integration result is not ideal for all injections. This article outlines the step-by-step instruction to manually integrate peaks.
Background
There are 2 ways to integrate...
This Information Applies To: Agilent OpenLab CDS , Agilent OpenLab ChemStation
Issue
Calculation of Area percent or Height percent for uncalibrated compounds in OpenLab software. If all components respond equally in the detector, then Area% and...
This Information Applies To: Agilent ICP-MS (7700/7800/7850/7900/8800/8900)
Issue
How to power off the Agilent ICP-MS Foreline Pump to perform maintenance, or when fully powering off the Agilent ICP-MS System.
Background
The ICP-MS MassHunter...
This Information Applies To: Agilent ICP-MS (7500,7700,8800)
Issue
How to check the E2M18 or E2M18F foreline pump to determine if the pump needs maintenance?
Background
The oil cleanliness and oil level in the E2M18 or E2M18F foreline pump...
This Information Applies To: Agilent ICP-MS (7700/7800/8800)
Issue
How to replace the foreline pump oil in the DS 402.
Background
The DS 402 oil should be replaced at least every 3 months or when the oil color indicates it needs to be changed...
This Information Applies To: Agilent 8890/8860 GC Systems
Issue
How to delete data that is stored on the GC instrument.
Steps to follow
Caution : Before deleting data from your GC, Agilent recommends extraction of data as a backup...