Analytical Chemistry Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Analytical Chemistry Interview Questions

Questions Answers Views Company eMail

When i inject amines and acid on HPLC then which peak will elut first?

Sun Pharma,

4 13765

In pharmacopeal solibility parameter of a material, is et essential to test all paramete? If 70-75% parameter passes can we assess that the material is satisfactory or not?

Aurobindo,

1 5475

Why triethylamine and o-phosphoric acid used while setting pH of mobile phase during HPLC Analysis?

Hapten Healthcare, Pharmaceutical,

6 34098

why RID detector is used for selective materials like Mannitol, Hydroxyethyl Starch and Sorbitol?

5 12832

for which type of applications gas chromatography is used?

2 6862

for which type of applications gas chromatography is used?

2 6662

for which type of applications gas chromatography is used?

Cipla, Flamingo Pharmaceuticals,

5 11746

wat is reverse phase in hplc

2 9070

For Dissolution test why we are Performing 6 Bowls why not more.any were mentioned or in what basis we are performing? --------Veerabhadrarao.M

Lee Pharma, Micro Labs,

2 12375

In Number of Theoretical Plates (N) = 16 (tr/w)2. where tr: retention time, and W: peak width. My Question is here in formula what is 16.Can u explain briefly? ---Veerabhadrarao.M

Micro Labs, Richter Themis, Sun Pharma,

3 19764

how to Calibrate FID IN GC

1 7525

what is assay in hplc

3 11981

how calibrate the hplc detector

Cipla, Shraddha Analytical Services,

2 10836

why we use deturium lamp in uv spctrophotometer other than lamps

1 10118

A new drug substance found fail to meet specification for an unknown Impurity during stability study(Specific change),how would further proceed?

2 7542

Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

can i use hplc detector to uplc and why?

2349

Why potassium dichromate is used in calibration of uv?

2039

if identification threshold crosses the limits then what next step?

917

if peak get problamatic then what require to do?

864

if you get peak in blank then what require to do?

1023

What is control room temperature and which guide line says?

1698

What is the diference between residual solvents and organic volatile matter

2111

How we choose the mobile phase for method development.?

1272

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,

2655

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

2265

What is Band broading effect explain

1941

how to calibrate hplc & gc

4562

what is mean by dissolution biowaiver study?

997

what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?

4538

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

1921

For More Un-Answered { Analytical Chemistry } Questions Click Here