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Categories >> Sciences >> Chemistry >> Analytical Chemistry
 
 


 

 
 Organic Chemistry interview questions  Organic Chemistry Interview Questions (221)
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 Analytical Chemistry interview questions  Analytical Chemistry Interview Questions (833)
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 Chemistry AllOther interview questions  Chemistry AllOther Interview Questions (65)
Question
what are peak purity,peak purity index,peak thresold
 Question Submitted By :: Jignesh
I also faced this Question!!     Rank Answer Posted By  
 
  Re: what are peak purity,peak purity index,peak thresold
Answer
# 1
System will extract the spectrum of apex of the peak.
Then it will split the peaks into different parts(these
values also can be given by user!).
Simply the system will compare the apex peak with all of the
different parts.
Here the purity angle and threshold come in to picture.

Purity angle is the numerical value of the measured peak's apex.
purity threshold is the numerical value of the minimum
allowable variation range.

If the minimum allowable variation range is (purity
threshold ) lesser than that of measured value (purity
angle) peak purity passes.If not it will fail.
 
Is This Answer Correct ?    4 Yes 8 No
Dhanalakshmi
 
  Re: what are peak purity,peak purity index,peak thresold
Answer
# 2
Agree with the above answer but the minimum allowable
variation range should be (purity
threshold ) greater than that of measured value (purity
angle) then peak purity passes.If not it will fail.
 
Is This Answer Correct ?    10 Yes 0 No
Sheetal
 
 
 

 
 
 
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