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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 11059

What are the differences between GC and HPLC?

1 14014

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

4 11061

What is linearity in HPLC and how will you test?

1 18411

what is the difference between polarimeter lamp and ir lamp

2738

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

Nectar Lifesciences,

2 9336

what is difference between IR lamp and polarimeter lamp

Raks Pharma,

2 8008

Why dissolution test is not performed in all of the products

Biocon, SDD,

1857

why we need to do karl ficher fector ?

Reliance,

2 10726

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

Cipla, Reddy Labs,

2 14422

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

Apotex,

1 3339

how to prepare 25 ppm acetone. explian with formula

4 15155

why sucrose not used in polarimeter calibration?

Cipla,

2 9231

What is the diffeence between assay and uniformity of content

2 8552

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

Biological.e.limited, Cipla,

3 27662


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Un-Answered Questions { Analytical Chemistry }

what is the procedure for cleaning of lenses of hatr accesory of ftir instrument?

1647


process of Diclofenac sodium,IP.

1488


[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?

104


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

1438


What is rs test why we are performing rs test?

1033






can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?

1547


what is the origin to prepare standard operating procedure

1614


How we choose the mobile phase for method development.?

454


WHAT IS THE USE OF STARTER ?????????

1707


How you develop a method in HPLC?

1911


why salisylic acid not using now days for disdolution calibration?

108


What is control room temperature and which guide line says?

963


which are the guidelines for force degradation studies?

116


1)What's the meaning of Absorption,give a example. 2)What's the meaning of Adsorption,give a example. 2)what is the difference between Absorption and Adsorption.

2163


mode of absorption in alimentary canal?

1754