Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is the diference between residual solvents and organic volatile matter

RA Chem Pharma,

1441

WHY given much noise PDA dector then VWD Dector

1473

How to decide the standard concentration for related substances hplc method

1 3524

Why we have to use KBr pellet technology ?

1 2522

Why dissolution test performed on six jar?

Mylan,

1 3392

How to determine retention time in Chromatography

Mylan,

2 4986

effect of Ph during analytical run ?

Lambda Therapeutic Research,

1 2303

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...

Srini Pharmaceuticals,

1511

is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth

Aarti Drugs,

1618

Which is the highly polar and highly non polar column in HPLC?

1742

What is the difference between qualitative and quantitative analysis (hplc)

1 3749

what is the difference between potentiometric titration and karl fischer titration?

2363

How NMR spectra can be calibrated in presence or absence of TMS?

1 2075

What is Band broading effect explain

Dr Reddys,

1367

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

Cipla,

1326


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Un-Answered Questions { Analytical Chemistry }

in gas chromatography what is the difference between gas flow rate and average linear velocity ?

1886


What is rs test why we are performing rs test?

1269


i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me

2155


how to develop the icp ms method? Application of icp ms?

273


Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?

2250






how can give the expiry period and restadardisation of volumetric solution

2024


A ha tc is actual defination of retention time?

1032


why octanol used to determine the partition coefficient ?

1886


1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer

1263


In rs method development when we are going area normalization method to dilute standard method?

903


in dissolution if one bowl got 70 percent 2nd bowl got 80 percent and 3rd bowl got 90 percent then how proceed?

294


what is turbidimetric titration?Give 2 examples.

1950


if identification threshold crosses the limits then what next step?

301


What is a difference between potency and purity?

593


is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth

1618