Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

Plz explain the formula in uv calibration =Absorbance of the sample ( x ) x 10 x 1000/Weight of potassium dichromate taken in mg

1 5558

how v can identify functional groups by wet techniques?

2 1994

What is the difference in OVI and Residual solvents?

Discovery Intermediates,

3 9631




what is the method of UV cabinet CALIBRTION

2 9750

WHAT IS THE USE OF STARTER ?????????

Sharp,

1088

why IR graph or spectra comes down ? Any reason

3 11912

what is partion and column chromatography

Emcure,

1034

What is the difference between the optics of UV and PDA Detectors ?

Neuland, Emmennar,

3 10343




How to establish pKa for a new API molecule ?

Neuland, Sun Pharma,

2 7843

why we are adjusting the ph in buffer solution preparation

2 8712

what is the film thickness in ftir

8 8105

what is the principle of assay of sodium nitrite?

2 7299

why required specificity in valdation

3 5071

why we are analyzing purity on HPLC why not in gc

Reddy Labs, Aurobindo,

3 10381

whate is difference between calibration and validation

Ranbaxy, Zydus Cadila, Cipla, Alkem Labs, Torrent Pharma,

11 39729


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Un-Answered Questions { Analytical Chemistry }

What is the difference between spectro meter and spectro photo meter?

8455


What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio

300


why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space

939


How would you decide dissolution medium for NCE compound of class I drug

727


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

816






Qc interview questions

343


What is the principle of Thermal conductivity detector and FID?

1422


how much mass should be there in volumetric flask while in preparation of sample for assay? 

1160


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

1119


IS THERE ANY EQUIPMENT TO CHECK AND CALCULATE THE POLARITY OF A LIQUID?

1225


In the isomers,enantiomers give the only physical properties present such that no chemical properties present.

974


Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc

253


What is the purpose of octyl silane columns?

2641


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


what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?

2194