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 sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?

Cipla, Elder, Vamsi Labs,

1 9694

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

2490

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

CMET,

2671

why are not used methonol in kf titrator to find out water content in ketones?

Piramal Healthcare,

5 15058

Why are EDTA used to etimation of Ca,Mg etc, in Water analysis?

Reddy Labs,

3 10373

why we use kbr as constant in the FTIR ?

4 10749

how much wave length of Soduim vapour lamp used in polarimeter

Reddy Labs, Torrent Pharma,

2 10611

what is the principle involved in turbidometry and nephelometry ?

Graviti Pharmaceuticals,

4113

What is basic difference between method validation,process validation

Atul,

1 9342

why sucrose used in polarimeter calibration?

Reddy Labs, Sugar Factory,

2 11782

why we are using 6 dosage units in dissolution, and why we are using 6 tablets in disintegation test.is there any scientific reason beyond 6?

ABC, Alembic, IPCA,

1 22046

IN DISSOLUTION WE ARE USING A LETTER 'Q' WHAT IS MENT BY Q

Reddy Labs, Torrent Pharma,

5 14286

define polar and non polar solvent

2 13032

Why we use 100 RPM in friability test

IPCA,

1 7962

In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % )

Alembic,

3427

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Un-Answered Questions { Analytical Chemistry }

why require the ph, buffer during hplc mobile phase?

820

about method developement in hplc

1667

what is the origin to prepare standard operating procedure

2250

What is the formula for relative diffrence for standard solution in solution stability in validation?

740

Identify problem faced when mass spectroscopy is used with HPLC system ?

1803

How to do regeneration of Metacarb Pb plus column?

2515

How can we calculate offset value pH measurment

1467

if you get peak in blank then what require to do?

911

if you given one product then which tests you will perform?

665

which batch require to use for analytical method validation?

749

How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.

2255

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

856

what is mean by dissolution biowaiver study?

855

in each media we require to use SLS? how to proceed?

727

Which parameter require to do for analytical method equivalency?

732

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