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 determine a compound acidic or basic?

Celon Labs, Cipla,

2 10864

For LOD and LOQ determination which method is accurate? (slopemethod or s/n ratio method)

Reddy Labs,

4 11755

how to develop the shorter run time for pharmacopeial methods having 100 min run time?

Reddy Labs,

3 11272

How you start the method development of unknown compound.

1 5981

How to determine water content of bis tetrazole amine mono ammonium salt

3530

Is there any difference in principal of reverse phase and normal phase chromatography? and why? Please update. Thank and regard

MSN Pharma,

3 11464

How to use RF and rrf in Rs calculation( either multiply or divide)?

Micro Labs,

4 13973

WHY KBr is used in IR Spectroscopy

GVK,

3 13990

How can you prepare 0.05M Ammonium acetate volumetric solution?

2 25233

Why using 0.5% acetone in methanol mobile phase for HPLC Gradient performance check.

DRL,

2 13765

IF WE INCREASE FLOW RATE RT DECRESE.WHY

2 10745

in hplc calibration injector linearity pass,it means inj and det is good. why to perform detector linearity is it required, if it is required,what is difference between injector and detector linearity in hplc calibration

Dr Reddys, Hetero,

4 16091

how can you decide API molucule acedic or basic compound by test?

Posh Chemicals,

2 10256

acceptance criteria for lod & loq by standard deviation of response and slope??

2642

various methos to calculate precision in validation methods in HPLC?

2 7669

Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

From where require to take the RLD sample?

806

Why to use propyl paraben in HPLC gradient calibration

7593

Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?

2231

why are measure gas flow " ml " in Gas chromatography

1703

cefoperozone and sulbactam inj. hplc test method

2746

What is diffrence between extractable volume and deliverable volume? Answer pls

4620

What is similarity factor and its use in api strength?

1366

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

2328

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

757

How you develop a method in HPLC?

2668

What is the use of tlc and hplc? And when and where use?

1213

how decide the clining method and cleaning method validation require for this perticular products?

822

Which parameters require to do in tech transfer?

819

why does used dry caffien in HPLC calibration?

2082

what is mean by extactable and leachable study?

1228

For More Un-Answered { Analytical Chemistry } Questions Click Here