Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

Please do not join if u got offer in oncotherapies ltd (STRIDESARCOLAB)especially Mr.Mahesh Bhatt team because job is not secure his team and doesn't have confidence on him becareful this offer?

Strides Arcolab,

1 2529

In partical size by malven,which parameter is generlly change for development of dry and wet method.

1 809

As per ICH related substances stability trend limit from initial to shelf life

Micro Labs, Medley Pharmaceuticals,

1607




what is the difference between EP and BP

Novartis, Vimta Labs,

2 12356

which detector is used in IR

Hetero,

3 10355

why hexadecane is used in calibration of FID IN GC THERE IS NO REMAINING SOLVENTS

DRL, Hetero, MSN,

1 4489

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 6037

what is dissolution What is unit of KF? what is the significant of pH in HPlc? WHY POTASSIUM HYDROGEN PTHALATE IS USED FOR PERCHLORIC ACID? What is difference btw UV detector & RID detector?

1 5276




I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?

1942

Hplc detect how much ppm solutions i want range

4 6841

If we change lenght of ph eletrode wire then it will affect on ph ?

2 4714

In kf constant term 16 what it is explain ?

2 5260

Why dissolution apparatus having 8 jars ?

5 8817

What is the unit of Colour?

IPCA,

4 6399

who is the father of HPLC?

IPCA, Cipla,

6 13102


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Un-Answered Questions { Analytical Chemistry }

In the isomers,enantiomers give the only physical properties present such that no chemical properties present.

879


1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer

144


what is the importence and role of LCMS and LCMS/MS and their applications? which type of compounds are analysis by lcms?

2224


How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?

1731


wat is the role of michelson interferometer in FTIR and He-Ne lase.detailed answer required in simple language

990






Principle of single pan analytical balance

3490


how the compound separate in coulunm,explain

925


HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.

896


What are the primary considerations in extractables and Leachables ?

927


How we can determine water content in piperazine

811


why does used dry caffien in HPLC calibration?

500


What is importance of pH in the Heavy metal test and How it effect on the test results?

863


is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth

487


about method developement in hplc

321


What is the exact reason to use THF and IPA in buffers of Reverse phase HPLC as a solvent?

2391