hello,I had the same problem as you to make the sum of impurities, I searched in the forum and I found the following formulas, to be verified because I am not an expert in formulas but it worked
ListImpND (Type string, scope signal) If (Count(CurrentSignal…
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…
I made a new calibrant solution and did a full system tune. The system tune passed. However when I switched back to my low 1700 m/z range and did a mass cal/check tune my positive failed but my negative did not.
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…
I would check the pulse and analog HV values. If they reached ~ 1800V and 3300V accordingly, you will need to replace the EM detector. If EM tune fails but your calibration is fine, you can still measure. You just need to be sure that EM is replaced soon…
Hope your week is going well, can wait for spring to actually arrive.
When we turn auto offset on for either of our GCs, it ramps the output so high that it shuts down. This is just for the nitrogen phosphorus detector. We normally turn it off, but…
The Digest of upcoming webinars has been updated as of November 1.
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Elemental Analysis of Lithium-ion Battery Samples…
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…
This Information Applies To: Agilent OpenLab ChemStation
Issue
This article describes the fundamentals of noise determination and calculation in Agilent OpenLab ChemStation to report the signal-to-noise ratio.
Tips : To report the...
This Information Applies To: Agilent OpenLab CDS
Issue
The default workflow for OpenLab CDS is the following: Reprocess Results > Save Results > Print Results . This is the recommended workflow for regulated environments.
For nonregulated environments...
This Information Applies To: ICP-MS MassHunter 4.x/5.x
Issue
Reviewing the latest Performance Report, and Performance Report History is a useful tool for troubleshooting ICP-MS instrument performance issues. Historical sensitivity, background, precision...
This Information Applies To: Agilent ICP-MS systems (7700/7800/7850/7900/8800/8900)
Issue
How to perform routine maintenance on the Agilent ICP-MS Torch.
Background
Deposits on the torch can be removed by routine maintenance. Maintenance frequency...
This Information Applies To: Agilent ICP-MS systems (7700/7800/7850/7900/8800/8900)
Issue
The torch, bonnet, and platinum shield plate must be installed after performing maintenance, or replacing with new components.
Items Required
Standard...
This Information Applies To: Agilent ICP-MS systems (7700/7800/7850/7900/8800/8900)
Issue
The torch, bonnet, and shield plate must be removed and inspected during routine maintenance, and when troubleshooting plasma ignition problems. Faults with...
This Information Applies To: Agilent ICP-MS systems (7700/7800/7850/7900/8800/8900)
Issue
This procedure tests for an air leak in the sample introduction system, or fault with spray chamber draining, by sealing the end of the torch with a piece...
This Information Applies To: 7700, 7800, 7850, 7900 Agilent ICP-MS instruments
Issue
Error messages related to gas flows can cause the plasma to shut off or disable plasma ignition.
The troubleshooting procedure in this article is applicable for...
This Information Applies To: Agilent ICP-MS systems (7700/7800/7850/7900/8800/8900)
Issue
Error messages related to water flow or water valve issues can cause the plasma to shut off or disable plasma ignition. While a warning message will still...
This Information Applies To: Agilent Fluorescence Detectors (FLD)
Issue
Sometimes it’s necessary to change FLD EX and EM wavelengths during a run since not all components will excite or emit at the same wavelengths. However, when the wavelength...