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

Analytical Chemistry Interview Questions

Questions Answers Views Company eMail

how can delete the impurity in 1-(2:6 dichloro phenyl)-2-indolenone.and desolving the impurity in which solvent but does not desolve product in solvent.

1 3051

What is the pilot-plant in pharma sector.

Dr Reddys,

1 3367

What is blank titration of potentiometrically.

2 10742

process of Diclofenac sodium,IP.

2162

why we are using benzene, anyline in acetic anhdride assay titration method?

2083

which solution used for detecting factor of k.f.titroter except water

3 9930

in dissolution why pool sample needed? in which type of drug pool sample need?

Torrent Pharma,

3139

void volume is depending on column or not? if yes how will you depend?

Granules,

1 7458

what is difference between polarity and dipolemoment

Neuland,

3 10313

in determination of(acetone) moister content we are using methanol replaced by pyredine.what hapend in that reaction.

Glenmark, Neuland,

2 9396

what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.

2592

What is the difference between spectro meter and spectro photo meter?

APM, Graviti Pharmaceuticals, Ranbaxy,

1 11379

How do u differentiate primary

1 3154

WHEN AN UN KNOWN SAMPLE IS GIVEN TO U,HOW WILL U START THE ANALYSIS(ie FIRST WHICH TEST TO BE DONE,NEXT,THEN NEXT),HOW WILL U DECIDE WHICH TYPE OF ANALYSIS TO BE DONE FOR IT?

Aurobindo,

2 10858

WILL YOU DRY DST BEFORE FACTOR DETERMINATION BY USING KARL FISHER TITRATOR

Aurobindo, Meghmani Organics,

4 12217

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Un-Answered Questions { Analytical Chemistry }

Hi sir if any product monograph not given known impurities (may be 5 impurities) specifications then how we require to proceed for inhouse formulation?

664

in which situation require to take incident in validation?

1687

Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?

2685

Why sodium hydroxide used for maintain pH of phosphate buffer

2352

what is the purge flow & how to calculate

2580

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

2372

what is partion and column chromatography

2330

AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?

2026

What is similarity factor and its use in api strength?

1262

2278

what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.

2592

how require to interprit the method precision data of hptlc?

777

If change in specification which parameter require to do for validation? if change in chromtographic condition then which parameter? if api change then which parameter? if change composition then which parameter? if old method not work out then whicj parameter? if additional one impurity added then which parameter of validation require to do on above each conditions? elaborate separately

814

How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample

3186

How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium

2499

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