ALLInterview.com :: Home Page            
 Advertise your Business Here     
Browse  |   Placement Papers  |   Company  |   Code Snippets  |   Certifications  |   Visa Questions
Post Question  |   Post Answer  |   My Panel  |   Search  |   Articles  |   Topics  |   ERRORS new
   Refer this Site  Refer This Site to Your Friends  Site Map  Bookmark this Site  Set it as your HomePage  Contact Us     Login  |  Sign Up                      
Google
   
 
Categories >> Sciences >> Chemistry >> Analytical Chemistry
 
 


 

 
 Organic Chemistry interview questions  Organic Chemistry Interview Questions (227)
 Inorganic Chemistry interview questions  Inorganic Chemistry Interview Questions (96)
 Analytical Chemistry interview questions  Analytical Chemistry Interview Questions (860)
 Physical Chemistry interview questions  Physical Chemistry Interview Questions (57)
 General Chemistry interview questions  General Chemistry Interview Questions (283)
 Chemistry AllOther interview questions  Chemistry AllOther Interview Questions (71)
Question
HOW CAN V CALIBRATE FTIR ? PLZ EXPLAIN ME
 Question Submitted By :: Analytical-Chemistry
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
FT-IR IS CALIBRATED BY USING POLYSTYRENE FILM

PUT THE POLYSTYRENE FILM INTO THE SAMPLE HOLDER
AND SCAN IT FIXED WAVE NUMBERS ARE OBTAINED THEY ARE
3060
2849
1942
1601
1583
1154
1028
ACCEPTANCE CRITERIA IS +/- 1 CM

RESOLUTION: THE DIFFERENCE BETWEEN THE ABSORBANCE AT THE
ABSORBATION MINIMUM AT ABOUT 2870 CM AND THE ABSORBATION
MAXIMUM AT ABOUT 2849.5 CM SHALL BE MORE THAN 0.33

THE DIFFERENCE BETWEEN THE ABSORBANCE AT THE
ABSORBATION MINIMUM AT ABOUT 1589 CM AND THE ABSORBATION
MAXIMUM AT ABOUT 1583 CM SHALL BE MORE THAN 0.08.
 
Is This Answer Correct ?    21 Yes 0 No
A.sudhakar
 
Answer
# 2
FTIR IS CALIBRATED BY USING POLYSTIRENE FILM THICKNESS OF
0.04mm(AS PER USP)0.05 mm(AS PER IP. THE RESOLUTION IN
ABSORBANCE B/T 2849.5 AND 2870 IS 0.33, IN B/T 1583 AND
1587 IS 0.08.
FREEQUENCY : EVERY DAY BEFORE USING AND MAJOR MAINTENANCE
JOB.
 
Is This Answer Correct ?    7 Yes 5 No
T N Rao
 
 
 

 
 
 
Other Analytical Chemistry Interview Questions
 
  Question Asked @ Answers
 
whate is difference between calibration and validation Zydus 8
why we use only sucrose in the calibration of polarimeter? Kilitch 3
How to calculate LOD & LOQ in HPLC Validation Method Reliance 12
How we get DST moisture 15.4-16.0%. what is the calculation or method behind it.   2
A new drug substance found fail to meet specification for an unknown Impurity during stability study(Specific change),how would further proceed?   2
full name of OOS & OOT ? Dercribe it with details ? why this is needed in pharma industry ? Orchid 8
How is the Flame test performed?   4
why ur using toulene in hexane in u.v calibration? cipla 3
WHY POTASSIUM HYDROGEN PTHALATE IS USED FOR PERCHLORIC ACID? What is difference btw UV detector & RID detector? what is dissolution? What is unit of KF? what is the significant of pH in HPlc?   1
In Force degradation Study Compound is not degrade in any condition , also in higher stress what can i do ? Alembic 4
Is it compulsory to prepare KBr disc with sample in identification test by FTIR?   2
which light is used in FT-IR spectroscopy Hetero 5
 
For more Analytical Chemistry Interview Questions Click Here 
 
 
 
 
 


   
Copyright Policy  |  Terms of Service  |  Articles  |  Site Map  |  RSS Site Map  |  Contact Us
   
Copyright 2013  ALLInterview.com.  All Rights Reserved.

ALLInterview.com   ::  KalAajKal.com