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 3213

What is the pilot-plant in pharma sector.

Dr Reddys,

1 3519

What is blank titration of potentiometrically.

2 10975

process of Diclofenac sodium,IP.

2287

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

2170

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

3 10250

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

Torrent Pharma,

3225

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

Granules,

1 7628

what is difference between polarity and dipolemoment

Neuland,

3 10617

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

Glenmark, Neuland,

2 9632

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

2682

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

APM, Graviti Pharmaceuticals, Ranbaxy,

1 11621

How do u differentiate primary

1 3297

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 11016

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

Aurobindo, Meghmani Organics,

4 12511

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Un-Answered Questions { Analytical Chemistry }

What is delay volume?

1436

While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?

2902

What is mean by PDR?

1032

We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy

1968

calibrtion procedue of LC-MS

2762

What is the diffrence in japan mkt requirement in analytical method validation over US?

773

What is the difference between chromatographic purity and related substances?

1460

in hplc chromatogram started from left to right and in uv spectrum started from left to right

1016

What is the requirement for brazil in the analytical method vslidation comparr to ich?

854

what is the principle involved in turbidometry and nephelometry ?

4205

What is aggregate and fragments in SEC?

2159

why are measure gas flow " ml " in Gas chromatography

1703

How to decide assay range for non pharmacopeial API analysis by HPLC? Could you give me any reference for same e.g Guidelines or Paper publications?

3405

EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE

2686

UV and PDA detector, which have less signal to noise ratio?

1178

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