Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

why plane of polarized light rotated by opticaly active compunds?

Glenmark,

1 1979

why plane of polarized light rotated by opticaly active compunds?

Glenmark,

1 5402

Can any one tell what is RECALL OF PROCEDURES is

Macleods,

1 1316




what is the difference between capillary and glass column in GC

1 5415

differance between L1 and L7 columns

Everest,

5 15422

what is basc principle of the HPLC,IR,UV AND GC? what is difference between diffusion spectra and transmision spectra in IR?

Torrent Pharma, GICC, Mylan, Sygene, Dr Reddys, Zydus Cadila, Cadila,

1 17720

plz tall me that any pharmacopeia and guideline is par meted to use 1.68,4.01,7.00,9.00,12.45 buffer for ph meter calibration

Torrent Pharma,

1 1442

In pharmaceuticals formulation OOS applicable in Raw Material(which is not manufacturing in the company. and purchase by approved vendor)).Why?

Orchid,

1 5681




why we use only six bowls for dissolution of a drug

Cipla, Natco, TelePerformance,

1 14853

On which pharmacopoeia basis we can calibrate instruments like HPLC,GC,UV,DISSO,IR etc...

Laurus, Cipla, Micro Labs,

9 15992

why PH range 0-14 explain

Saint Gobain, DRL, Reddy Labs, Viva,

5 51655

How to make up 100ml of a solution cintaining compound A at 95µg/ml and compound B at30µg/ml for an HPLC reference standard.

3 4081

why we prefer kbr for ftir than kcl?

Aurobindo,

5 8970

How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain

Vimta Labs, Graviti Pharmaceuticals,

1109

EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE

1276


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Un-Answered Questions { Analytical Chemistry }

about method developement in hplc

349


mode of absorption in alimentary canal?

1107


why we do the calibration of limit of stry light in hplc & uv

1344


all types of questions asked at the cipla interview

3294


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

138






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

724


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

1132


what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.

980


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?

1200


cefoperozone and sulbactam inj. hplc test method

1228


how the compound separate in coulunm,explain

967


how can I make the copper get white bye any salt or acit?

945


what is definition of validation? which components are followed give detail?

844


function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

1162


what type of question will ask in the interview of lab chemist.

2043