Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

Why potassium hydrogen pthalate is used for perchloric acid And naoh. Why it is used for both acid and base

Vijayasri Chemicals,

6 29041

what are the normalisation, internal standard and external standerd methods in HPLC.

GVK,

2 13526

is ther any guidline is available for limt of peak fronting.and what is the limt of peak fronting.

2 10962

how would you determine the acceptance criteria for cleaning validationof product A for product B?

Cipla, Cypher Solutions, Torrent Power,

1 6848

How can we konw that the HPLC column is endcapped? Is it possible to identify visually without COA?

JBCPL,

2 9372

Why KBr pellet is used in IR?

Glochem,

11 24830

IN DISSOLUTION S1 STAGE 1 BOWL GOT 52%(Q POINT IS 80%)WHAT WE HAVE DO

9 14302

what is the meaning of PURITY AND POTENCY .what is the difference between PURITY and POTENCY

Orchid,

5 25661

Why Peak Purity is not determined in GC analysis?

GSFC, GVK,

1 5832

Why sodium lamp is used in polarimeter?

Aurobindo, Micro Labs, Mylan,

1 13771

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

Bank of Baroda,

1735

What is the difference between Primay and Secondry Standard ?

College School Exams Tests, Neuland,

6 49934

priciple of gc & hplc? (properly describe)

Cadila, Cipla, Reddy Labs,

2 14294

why we have to store the pH electrode in 4.01 buffer ?

Aurobindo, BioMax, BioSynth, Cipla, Indoco Remedies, SGS,

1 6919

give tha clarity about peak purity concept

Aurobindo, Reliance Life Sciences,

3 10199


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Un-Answered Questions { Analytical Chemistry }

How do we fix the sample concentaryion in hplc method development?

667


from where i get mortar pastle for glass bottle crush? it's required for testing of it?

1735


How to calculate coreletion coefficient

1138


what is the disso medium for tropsiun chloride

1798


we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion

1358






what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?

3184


Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?

2320


what is %labelled amount in content uniformity of dosage unit and its calculation?

4627


WHAT IS THE USE OF STARTER ?????????

1907


For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?

1249


Explain the relations between number of carbon atoms in alkanes and retention time ?

1627


Why irmoisture balance is used for corrugated box moisture testing

1927


What is intact assay method development.....?

2006


how decide the clining method and cleaning method validation require for this perticular products?

301


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

1735