How can I write a code in OpenLab CDS that gives me the peak area of a specific compound that appears in my chromatogram?

As I asked, how can I write a code for obtaining the peak area of a identified compound in my sample? As I show in the figure, the Ri is the area of an individual peak (I suppose that the code for this is Peak_Area, but please let me know), the mst and ERRF are constants that I already have imported from a file, the mp is the mass of the sample (code: Sample_Amount, please let me know again if is correct) and Rst is the peak area of a specific peak (the code that I don't know).

If yoiu could help me I would be extremely grateful.

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0 martin.adams 6 months ago

Hello,

I will assume you are doing this calculation inside a single injection. If so, the example below should be useful. In that example, I am calculating the ratio between 2 peaks (Peak A/ Peak B) at the injection scope.

Marty

CurrentInjection.AllPeaksAndGroupsByName("Peak A").Select(function(x) x.Peak_Area).First / CurrentInjection.AllPeaksAndGroupsByName("Peak B").Select(function(x) x.Peak_Area).First
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0 Rodrigo_C. 6 months ago in reply to martin.adams

Hi, thanks for your answer. I am having another problem now, which is an error in the constant file saying that is not correctly formatted. What can I do about this??
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0 martin.adams 6 months ago in reply to Rodrigo_C.

Hello,

I typically open them in notepad++ which allows me to see the tab character to make sure they are correct. You can also open them in excel and save as text tab delimited. The requirements for the file listed in the help are below. Please note except for the compound name column and header row all other data needs to be numeric values.

Marty
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