Analytical Chemistry Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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 31406

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

GVK,

2 14560

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

2 11939

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

Cipla, Cypher Solutions, Torrent Power,

1 7618

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

JBCPL,

2 10407

Why KBr pellet is used in IR?

Glochem,

11 28607

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

9 16837

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

Orchid,

5 27360

Why Peak Purity is not determined in GC analysis?

GSFC, GVK,

1 6753

Why sodium lamp is used in polarimeter?

Aurobindo, Micro Labs, Mylan,

1 14845

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,

2249

What is the difference between Primay and Secondry Standard ?

College School Exams Tests, Neuland,

6 52142

priciple of gc & hplc? (properly describe)

Cadila, Cipla, Reddy Labs,

2 15333

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

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

1 7758

give tha clarity about peak purity concept

Aurobindo, Reliance Life Sciences,

3 11330

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Un-Answered Questions { Analytical Chemistry }

In Assy by potentio metry titration method how select MET U ,DET U, SET U,

2172

What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)

7545

what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR

9249

what is the structure of DOWEX-50

5521

What is a difference between potency and purity?

1221

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

2833

what are the standard methods for HPLC?

2786

what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means

1973

Which is the highly polar and highly non polar column in HPLC?

2309

in api coa contains only process impurities and in product coa contains degradation impurities?

701

what is mean by ambient temperature?

916

In HPLC (Waters) software Empower1,2 &3 what is the updation for each version

3032

Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?

2727

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 ?

3669

Why we select scan range from higer wavelength to lower wavelength in uv visible spectroscopy and ftir spectroscopy ? .

911

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