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Categories >> Sciences >> Chemistry >> Analytical Chemistry
 
 


 

 
 Organic Chemistry interview questions  Organic Chemistry Interview Questions (227)
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 Analytical Chemistry interview questions  Analytical Chemistry Interview Questions (867)
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 Chemistry AllOther interview questions  Chemistry AllOther Interview Questions (71)
Question
What is difference between Related Substance & Impurity 
Profile?
 Question Submitted By :: Analytical-Chemistry
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
related substances mean process related compounds and degradation compounds of drug substances or products.

Impurity profile is a description of the identified and unidentified impurities present in a typical batch of API or products.(Terms such as byproduct, transformation products, degradation products, interaction products, esidual solvents,related products and toxic impurities)
 
Is This Answer Correct ?    41 Yes 6 No
Durga
 

 
 
 
Other Analytical Chemistry Interview Questions
 
  Question Asked @ Answers
 
Generally for Normal Phase HPLC,stationary phase is Polar.In place of polar if we take non-polar means what happened & why?   7
how to prepare 5normality of hcl   2
How we develop a method by HPLC for unknown compound,if we got three peaks with same response then how we can find out which one is our desired compound's peak without taking help of LC MS. Kemwell 1
How to choose Normal phase or Reverse Phase HPLC method Conditions for given sample? PharmaZell 3
why 2Theta value is consider in the XRPD spectra and how to consider the 2 Theta value   2
what is LC - MS ? what its wide use in CRO/PHARMACEUTICAL INDUSTRY Ranbaxy 3
Optical Rotation*0.9477*100*200] Assay Of dextrose= ________________________________ 99.8* 200 why Factor=0.9477 Claris-Lifesciences 1
what is mass spectra ? why it is necessary ?   1
what is least count of a balance? How we find out this? Any formula for least count of Analytical balance? Reddy-Labs 8
Describe your experience with quality assurance and quality control analyses?   5
what is the difference b/w repeatability nd reproducibility ? Aptuit-Laurus 1
why has inject 6 injection in Releted compounds   2
 
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