Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

wen v have polr solvent then which type of column use in hplc

2 4644

What is Threshold in hplc?


2 12146

Why we use Caffeine in hplc calibration

Laurus, Emcure,

2 9434

what is the meaning of stress study?

Reddy Labs,

2 1844

what is the difference between potentiometric assay and hplc assay


2 9117

why we are using buffer solutionas as a mobile phase in hplc.

2 7412

importance of internal standard and in what conditions it is used?

1 2044

how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,


how to select short coloum and long coloumn for new molecule

Rampex Labs,


what is poarimeter, why it is used in pharma,and explain briefly about polarimeter?


3 7101

Why KBR is used in IR for preparation of pellete, why it shows zero dipole moment


7 6735

what is optical active and non active give examples?


1 2594

what is custom fields in waters system?

Aurobindo, Akorn India,

1 5357

my name is santhosh i cmpleted in 2009 then i went to uk in 2010 to pg diploma business management. after i came back to india.. recently again apply to uk for pharmaceutical analysis. they refused my visa you failed to explain y u r change subject. so plz ineed answer for y change the cource

1 1295

why kbr is used for pellet preparation in ir spectroscopy, give the reasons? why kbr shows zero dipole moment?

6 9623

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Un-Answered Questions { Analytical Chemistry }

how can give the expiry period and restadardisation of volumetric solution


What is the difference between BD


what is the purge flow & how to calculate


what is the limit for KF Factor ,we take factor using water we will found factor between 6 to 7 ,while on KF Reagent bottle mentioned 5 mg/ml water content.if we not use dried methanol it is effect on factor.


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


wat is the role of michelson interferometer in FTIR and He-Ne lase.detailed answer required in simple language


USP methodology, EP methodology, IP methodology, among three if possible to use one methodology for qualify working standard to use USP, EP, IP ? Please explain...


when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.


why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?


what is separation techniques.


how to select short coloum and long coloumn for new molecule


What is the meaning of Base deactivated vials


what is turbidimetric titration?Give 2 examples.


what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means


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