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Hello, I would like to calculate the height relative percentage of 5 components in an injection: 100% acetone --> 100% 80% acetone --> (Height(80% acetone)/Height(100%acetone))*100 60% acetone --> (Height(60% acetone)/Height(100%acetone))*100 40% acteone --> (Height(40% acetone)/Height(100%acetone))*100 20% acetone -->…
Hi all, How to do a GENERAL CF to calculate the average between two injections. For example, I have a file "Sample_Conc" and I want to a general CF to calculate the average of the CF "Sample_Conc". Injection 1 and 2: Label: UK1 = UK.%.SAME.AVE(Sample_Conc) (could be like this CF?) Than the same CF to calculate the AVE for…
Hi, I've been having some problems with resolution between peaks using Waters Acquity Peptide CSH C18 columns for routine system post-maintenance checks. We use a peptide standard mix which gives 5 peaks, and the resolution between 2 of the peaks is consistently low and not meeting acceptance criteria. I've repaired…
My one peak real CF custom field: Mean_Area = (S2.1.(Area)+S3.1.(Area)+S3.2.(Area)+S3.3.(Area)+S3.4.(Area))/5 and another peak real CF custom field: Area_RSD…
* 2489 shows "yes" for status ok in the node properties * 2489 Channel is Active * 2489 instrument control panel display empty * Monitor Baseline is possible. * Ethernet connection. * It won't stop after run time is over. * No signal is saved for 2489, pressure signal for e2695 is saved.
I found it I have no access to copy preference to other project in Configure System in Empower. Which privilege do I need?
We have the "Photo Diode Array" option enabled on all of our projects. While the majority of our analysis does not require to use this feature, we do occasionally need to use it hence it being activated in all projects. When I open a Result Set or Sample Set in review it will automatically open the spectra window alongside…
Hello, i would like to create a custom field, which i inject 5 standards. Each standard contains 5 peaks and one peak internal standard (total 6 peaks). Then i inject the second standard for % recovery. The calculation for each peak: (ARstd2/ARstd1)*(Wstd1/Wstd2)*100 ARstd2=Area(solvent)/Area(internal std) (of second…
I have the following four components: Single Peak 1 Single Peak 2 Single Peak 3 Named Group (which is a group of Peak 1, 2 and 3) Each individual peak also has a unique RRF: Peak 1 has an RRF of 1.0 Peak 2 has an RRF of 1.3 Peak 3 has an RRF of 1.5 The equation in my method is: (Sample Total Peak Area) / (Std Total Peak…
Hi all, regarding the Report, is there any way to customize the component amount for STD and Control? I didn't find any way to do this using the "Sample Component amount group." Thanks.
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