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 reference flow required during hplc analysis on rid?

1 5927

why hydrogen and zero air used for flame ignition in gc?

1 9557

How we get DST moisture 15.4-16.0%. what is the calculation or method behind it.

2 28041

What is viod volume and peak purity in HPLC?

2935

what is the results if we use ODScolumn instead of BDS column ,(ther parameter is same for column) in assay method ?

3 11231

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.

2359

what is the use of tap density apparatus? why we calculate it? what is the difference between the bulk density and tap density?

Alchemist, Alembic, Apex,

1 5326

from where i get mortar pastle for glass bottle crush? it's required for testing of it?

2328

what is the procedure for cleaning of lenses of hatr accesory of ftir instrument?

2338

What is the difference between void volume and delay volume in HPLC?

3 20211

What is the purpose of octyl silane columns?

4338

how many types of Proceing methods?

Reddy Labs,

8 14589

What is the column performance and column efficiency?

Reddy Labs,

2 16161

What are the primary standards?

6 13715

why we want incorporate area of each solution of Intermediate precision and repeatability as well as Accuracy ? What is the use to incorporate area of each solution of Intermediate precision and repeatability as well as Accuracy ?

1 4725

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Un-Answered Questions { Analytical Chemistry }

mahagenco syllabus for the post of chemist

6513

2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.

2262

how you start RS method development when for new product?

779

WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY

2665

how to set sample and standard concentration in RS method?

967

what is mean by extactable and leachable study?

1226

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

2010

iam usig ph buffers merk. manually how to prepare ?

2327

what is biorelivent dissolution media?

859

function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

2721

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

863

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

11618

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

3223

What is the calibration of uv process and preparation

2045

how to get accurate result for Residue on evaporation in purified water

1697

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