Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

why plane of polarized light rotated by opticaly active compunds?

Glenmark,

1 2210

why plane of polarized light rotated by opticaly active compunds?

Glenmark,

1 5605

Can any one tell what is RECALL OF PROCEDURES is

Macleods,

1 1490




what is the difference between capillary and glass column in GC

1 5709

differance between L1 and L7 columns

Everest,

5 16380

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 18171

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 1670

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

Orchid,

1 5963




why we use only six bowls for dissolution of a drug

Cipla, Natco, TelePerformance,

1 15695

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

Laurus, Cipla, Micro Labs,

9 16590

why PH range 0-14 explain

Saint Gobain, DRL, Reddy Labs, Viva,

5 53680

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 4281

why we prefer kbr for ftir than kcl?

Aurobindo,

5 9270

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,

1186

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

1352


Post New Analytical Chemistry Questions






Un-Answered Questions { Analytical Chemistry }

How to choose the which salt is suitable for mobilephase

1715


what is the structure of DOWEX-50

3740


What is the calibration of uv process and preparation

723


how will you do the prep for unstable componds?

689


Why perchloric acid used for potentiometric titration

1321






iam usig ph buffers merk. manually how to prepare ?

1009


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

705


how to calculate corelation coefficient in G.C Calibration? what is the calculation part?

1011


we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion

495


Tell me something about Vitamin A test method by HPLC

1369


WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?

1403


what is peak purity and its formula

238


A ha tc is actual defination of retention time?

261


how to calibrate hplc & gc

3126


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

1228