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RSD of SUM peaks 1 group in 3 injection

Question asked by patrick_khav on Nov 3, 2019
Latest reply on Nov 5, 2019 by patrick_khav

Hi all, 

 

 

 

I need help. I used CDS openlab C.01.06

 

 

 

I dont understand, how i can it easy.

 

 

 

My problem is:

 

I have 3 injection STD solution.

 

In this STD i have 6 peak.

 

3 of this peak is group #1. 

 

I can calculate Sum (% area peak 1 and 2 and 3) area in %, for this group #1 in report. ( I do filtering for group #1).

 

But i cant calculate RSD for 1,2,3 Sum (of 1,2,3 inj) % area this group #1.

 

 

 

Now i calculate Sum peaks for each inj in other reports. After this i am calculate in excel RSD of 3 SUM. 

 

How i can do it in 1 report intelligent, please help me.

 

 

 

Good day for you. 

 

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