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 you prepare 0.1% Phosphate buffer solution?

6 14327

wat is the role of michelson interferometer in FTIR and He-Ne lase.detailed answer required in simple language

Police Constable,

1 3244

difference between quality and quantity

3 12772

why we get only one peak in assay by hplc but in rs by hplc get more peaks

MSN Pharma,

1 11422

In performance Check of GC Why Hexadecane Peak is Considered

Asian Paints, MSN Pharma,

2990

Is it required to inject 6 injections for % RSD of a system suitability in lc or gc

Raks Pharma,

3 13593

Why do we use KCl ,K2Cr207,Toulene & Halonium oxide for the caliberation of UV

Apotex,

2 16283

what is rt and rrt? how we find rrt? relation between rt and rrt/

Cadila,

1 19034

why the ph scale range is 1 t0 14 and why not beyond 14 and not to below 1?

Avra, Granules, Orchid,

5 21787

What is method validation in quality control

Alchem,

1 4896

Why we use uracil and caffeine in hplc calibration

Alchem, Reddy Labs,

6 29613

If mass balance is not passing in forced degradation in method validation that method is suitable or not?

Aurobindo, Dr Reddys, Reddy Labs, Wockhardt,

1 8893

Why we compare unequal concentrated solutions in heavy metals test. For example comparing the test solution with 1 ppm lead standard and telling it's less than 20ppm?

Micro Labs, Mistair,

1 7712

What is the reason for negative peak in HPLC while using UV detector.

2 15736

What is the reason of RT change in new column v/s old column in HPLC

Apex,

3 17959

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Un-Answered Questions { Analytical Chemistry }

what type of question will ask in the interview of lab chemist.

3266

for which product require to do content uniformity? what is limit of cu?

747

What is third generation HPLC Columns?

1937

Why use only methanol,used determinationof moisture content not use other solvents

1362

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

1086

What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?

8808

for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol

5996

How to set specification of assay, fisdolution and related substances?

823

What is split ratio in Gc? Splitless? how requirr to select?

826

analytical method validation require to with respect to release specification or shelf life specification?

735

effect of pore size, pore volume, partical size, column length, carbon load on retention time? what is carbon load? what is the use?

853

How do we fix the sample concentaryion in hplc method development. What is the basis?

1142

Is it nessesary all multimedia dissolution require descriminatory?

747

In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?

3121

How to start the dissolution development for unknown tab?

1619

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