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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

One Raw material failed assay test is there any chance for failing purity of that material ?

Mylan,

7 10129

What are the differences between GC and HPLC?

1 13622

Why do we need GC instead of HPLC? or Why do we need HPLC instead of GC?

4 10380

What is linearity in HPLC and how will you test?

1 17877

what is the difference between polarimeter lamp and ir lamp

2497

What is the difference of time between two consecutive injections in HPLC?

Nectar Lifesciences,

2 8794

what is difference between IR lamp and polarimeter lamp

Raks Pharma,

2 7192

Why dissolution test is not performed in all of the products

Biocon, SDD,

1627

why we need to do karl ficher fector ?

Reliance,

2 10049

Why we are use 0.005M Sulphuric acid, in control of absorbance performance test UV Spectrophotometer calibration

Cipla, Reddy Labs,

2 13582

How much sample concentration should i inject against diluted standard in related substances for drug product in hplc analysis

Apotex,

1 2897

how to prepare 25 ppm acetone. explian with formula

4 13745

why sucrose not used in polarimeter calibration?

Cipla,

2 8625

What is the diffeence between assay and uniformity of content

2 7973

why ur using toulene in hexane in u.v calibration?

Biological.e.limited, Cipla,

3 26608


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Un-Answered Questions { Analytical Chemistry }

some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?

1578


How do we fix the sample concentaryion in hplc method development?

240


why holium oxide prepared in 10% HCLO4 SOLUTION

544


Why irmoisture balance is used for corrugated box moisture testing

1474


How we choose the mobile phase for method development.?

237






what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?

2596




1436


mahagenco syllabus for the post of chemist

5288


What is intact assay method development.....?

1554


In IR spectra, generally a molecule vibrates without apply emr or ir light?

987


What is aggregate and fragments in SEC?

1133


UV and PDA detector, which have less signal to noise ratio?

207


what is the importence and role of LCMS and LCMS/MS and their applications? which type of compounds are analysis by lcms?

2708


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

1792


mode of absorption in alimentary canal?

1544