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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 2378

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

NA,

1226

Why we perform the ir analysis?

Sequent,

3 2933

difference between calibration and validation

Mylan,

2 3616

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

1591

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

1 2020

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

Dr Reddys,

1 2298

why disodium tartarate used in karl-fischer instrument ?.

Dishman,

1 1724

why does used dry caffien in HPLC calibration?

Dishman,

1345

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

1 2796

What is gelatinization?

Nestle,

1014

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

Nestle,

1 2534

Why we check moisture,ash & AIA in product

1202

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 1530

about method developement in hplc

1039


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

mahagenco syllabus for the post of chemist

5553


Basic principle of ESI?

1471


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

1649


why holium oxide prepared in 10% HCLO4 SOLUTION

806


in which situation require to take incident in validation?

269






How can I develope method of dissolution by HPLC OR UV

1725


about method developement in hplc

1039


how require to fix the linearity and accuracy cincentration range?

275


sop of a uv visible spectrophotometer double beam elico model

5077


What is stray light in uv what are units for stray light

839


Qc interview questions

1077


what is partion and column chromatography

1626


In BP2013, Loperamid HCl monograph. Assay by titration with 0.1N sodium hydroxide using hydrocloric acid 0.01N and reading the volume added between the 2 points of inflexion. I have a question that if the diluent solvent is ethanol is certainly consumed a amount of volume of titrant, so this volume must be eliminated on the result calculation or not apart from first point which is subtracted above.

2359


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

463


In IR spectra, generally a molecule vibrates without apply emr or ir light?

1237