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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is Isotope tracer technique?

WNS, MAHINDRA, MPSC, PSI Data Systems, LAP,

1 4758

In Karl fischer titrator what medium we can choose to analysing aldehyde and ketone samples by using KF reagent

 4 8388

Can we do the MC analysis of a sample which is not completely soluble in the medium choosed.

 2 4542



what is reverse phase chromarography&normal phase chromatography

Aurobindo,

4 8892

what is difference between Performance check and Calibration?

 1 10635

What is the correct way to digest milk powder to get the corrrect value of Fe and Zinc?

 1 2288

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?

 1257

What is the reason for using the 900ml of dissolution medium

Cipla,

15 54831



what are the different methods of analysing related substances test,what are LOD AND LOQ .HOW TO REPORT IMPURITIES WHEN LOD AND LOQ LIMITS R SPECIFIED

Dr Reddys,

3 17920

Which type of material analysis in GC using Theramal conditivity detector ?

 7 6027

suppose i give three compounds A,B,C how do u calculate assay of those three componds which method do u prefer

 5 6493

why you require QA approval & what is its importance?

 2 5271

wt is rsd in and explain

Cadila, Reddy Labs,

4 11848

what is the difference of use of LOD test and Karl Fischer titra.?

 15 23679

What is the difference between Paddle and Basket Why we are using Basket or paddle in dissolution.

Apotex, Cipla, Intas, GSK, Zydus Cadila,

6 35886

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Un-Answered Questions { Analytical Chemistry }

In Karl Fischer titration,What is the situation if the material tested is only soluble in water,and not soluble in the common solvents used such as methanol ?? [e.g. Iron III Hydroxide polymaltose]

1490

How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.

1207

please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development

318

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

238

what is the purge flow & how to calculate

1169




In performance Check of GC Why Hexadecane Peak is Considered 

1764

What is the calibration of uv process and preparation

692

How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium

1095

What is viod volume and peak purity in HPLC?

1344

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

776

Can we interpret accuracy from linearity in method validation?

748

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

179

could negative ions be produced by bombardment process in mass spectrometry?

188

what is peak purity and its formula

189

explain 5 components of gas chromatography ?

659

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