Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is void volume & dead volueme

Lupin, Bayer,

3 9312

How we will diapose UV (detector) lamp?

Bayer,

1 4512

Principle of single pan analytical balance

Bayer, Amneal Pharmaceuticals, Dr Reddys,

3564




what is the disso medium for tropsiun chloride

850

what is the meaning of linearity,principle of co-relation coefficient?

3 6077

how can we determine RRF value in HPLC FOR CALCULATION OF IMPURITY ?

Macleods,

4 39200

In UV we measure absorbance , how it is happend ? explain me

4 7046

why we are performing residue on ignition?

6 13085




why we are performing residue on ignition?

2 6760

NMR is both qualitative and quantitative?EXPLAIN

2 4163

why buffer is added in solvent system in HPLC ??

Lupin,

10 11347

how can we calculate void volume?give its importance in brief

Natco,

1 6848

What is the function of end capped column?

Cipla,

5 27086

HOW TO CALCULATE THE MASS OF UNKNOWN IMPURITY IN LC-MS? AND WHAT IS THE ROLE OF FRAGMENTATION IN LC-MS ?

1 3997

how calculate column dead volume in hplc ?

Torrent Pharma,

3 16340


Post New Analytical Chemistry Questions






Un-Answered Questions { Analytical Chemistry }

How to choose concentration of LOQ solutions for RS analysis? Example.

702


How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.

2362


How to check hplc detecter sensitivity?

185


why we use sodium salicylate in uv light calibration at TLC chamber

4760


What are modes of quantification in related substances

839






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...

505


what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means

645


While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?

898


Why sodium hydroxide used for maintain pH of phosphate buffer

860


What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio

241


Why Ethanol is Used for Standardization of GC Head space?

2564


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

633


How can the GC or HPLC method is selected to determine the impurity profile in drug product?

5304


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

921


what type of questions asked on analytical balance and also give answers................all pharma companies?

5715