Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

tell me about aliphatic acid estimation by hplc which columns can we use

Dr Reddys,

1 2615

does water content by KF will calculate only external moisture absorbed or the ligand ? (for ex copper sulphate pentahydrate)

NA,

1391

Why we perform the ir analysis?

Sequent,

3 3455

difference between calibration and validation

Mylan,

2 3989

why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?

1719

Data was integrated with RRT CONCEPT OR Overlay with SSTchrmatogram concept which is better?

1 2242

what is the difference between qualitative analysis and quantitative analysis and explain them?

Dr Reddys,

1 2523

why disodium tartarate used in karl-fischer instrument ?.

Dishman,

1 2010

why does used dry caffien in HPLC calibration?

Dishman,

1513

Why we don't add Hcl, HNO3, H3PO4 in residue on ignition, why we add H2SO4

1 3099

What is gelatinization?

Nestle,

1134

What is FFA, PV, and PAV value in oil.

Nestle,

1 3053

Why we check moisture,ash & AIA in product

1355

When recording an IR spectrum in the lab, we take no special precautions to account for the presence of oxygen, nitrogen, or argon in the air. What are the consequences of this?

1 1852

about method developement in hplc

1187


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Un-Answered Questions { Analytical Chemistry }

What is intact assay method development.....?

1968


How to calibration of the uv spectroscopy and its test?

618


process of Diclofenac sodium,IP.

1630


why holium oxide prepared in 10% HCLO4 SOLUTION

956


What is mean by PDR?

288






What is gelatinization?

1134


using gradient pressure in gas chromatography are not ?using gradient pressure why

2898


CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?

658


In HPLC (Waters) software Empower1,2 &3 what is the updation for each version

2404


How will u perform degradation study in detectors other thann PDA in HPLC Methodology

1983


What is the difference between purge septum flow and column flow in gas chromatography?

1779


what is procedure of actual procedure for registration of drug?

1419


If inhouse hplc related substance method is completly diffrent from Usp for finished pro─Ćuct with diffrent impurities then how require to prove method equivalecy?

271


what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?

3949


What is column in chromatography?

1715