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 1278

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

NA,

539

Why we perform the ir analysis?

Sequent,

3 1237




difference between calibration and validation

Mylan,

2 2025

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

958

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

1 961

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

Dr Reddys,

1 1020

why disodium tartarate used in karl-fischer instrument ?.

Dishman,

717




why does used dry caffien in HPLC calibration?

Dishman,

586

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

1 1507

What is gelatinization?

Nestle,

387

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

Nestle,

1 581

Why we check moisture,ash & AIA in product

471

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?

1 450

about method developement in hplc

387


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Un-Answered Questions { Analytical Chemistry }

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.

1022


about method developement in hplc

387


What is method validation in quality control

2401


what is the origin to prepare standard operating procedure

963


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

958






We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy

187


why we are using hexane in calibration of number of drop per mL

230


HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.

979


pharma industries oriented

837


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

1184


How to choose concentration of LOQ solutions for RS analysis? Example.

769


why glutent are detected in the rice cereal baby food product even manufacturer claimed that they are using rice and milk only?we have using ELISA to do the test,and rice supposed not containing any glutent,rite?We already repeat the test so many times and it still detected.just wondering where the glutent came from?

1267


Identify problem faced when mass spectroscopy is used with HPLC system ?

680


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

240


why we are using benzene, anyline in acetic anhdride assay titration method?

820