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 11781

What are the differences between GC and HPLC?

1 14330

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

4 11566

What is linearity in HPLC and how will you test?

1 18819

what is the difference between polarimeter lamp and ir lamp

2916

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

Nectar Lifesciences,

2 9721

what is difference between IR lamp and polarimeter lamp

Raks Pharma,

2 8601

Why dissolution test is not performed in all of the products

Biocon, SDD,

1992

why we need to do karl ficher fector ?

Reliance,

2 11226

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

Cipla, Reddy Labs,

2 14998

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

Apotex,

1 3660

how to prepare 25 ppm acetone. explian with formula

4 16116

why sucrose not used in polarimeter calibration?

Cipla,

2 9615

What is the diffeence between assay and uniformity of content

2 8956

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

Biological.e.limited, Cipla,

3 28342


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

what is mean by peak intigrity?

294


what is biorelivent dissolution media?

269


what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?

1476


How to start the dissolution development for unknown tab?

1099


Is it nessesary all multimedia dissolution require descriminatory?

283






Why Ethanol is Used for Standardization of GC Head space?

3676


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

1738


why we should take dst factor for below 1%moisture samples

2167


What is the difference between purge septum flow and column flow in gas chromatography?

1779


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...

1499


Why six unit used for precision?

765


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

628


How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.

1973


in which situation require to take incident in validation?

684


In which situation we require to analytical method validation of excipient?

248