Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

How do you verify the primary,secondary and tertiary amines by IR-Spectroscopy.


2 14317

what is the extinction coefficient for Indomethacin or at 319nm wave length.

GSK GlaxoSmithKline,


how PH an important role in HPLC separation

3 12587

HOw do i calculate the number of theoretical plate on a HPLC chromatography


2 15268

How we can analysed unknown sample by hplc....


2 8558

Why the same type of columns showing different RT for a single product?

6 8787

Shall i use a same hplc column for two different products.?

3 6054

What is the difference between low pressure gredient and high pressure gredient in hplc instrument?

4 9166

why did uyou choose analytical chemistry?

1 1886

how much you expected salary?

GSK GlaxoSmithKline,

7 14166

what is karl fischer principle and reaction ,describe it

Microsoft, Jubilant Organosys,

5 27999

Is it compulsory to prepare KBr disc with sample in identification test by FTIR?

2 6739

If we are getting split peak in Chromatogram,what we can do?

7 11882

Generally for Normal Phase HPLC,stationary phase is Polar.In place of polar if we take non-polar means what happened & why?


7 9616

what is peak purity ??

Cipla, Zyg Pharma,

10 54093

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Un-Answered Questions { Analytical Chemistry }

How will u perform degradation study in detectors other thann PDA in HPLC Methodology


from where i get mortar pastle for glass bottle crush? it's required for testing of it?


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,


about method developement in hplc


in dissolution in one tablets two molecule one is losartan & second is HCTZ losartam is complies in s1 stage & hctz is complies in s2 stage then how to report result losartan s1 stage result or losartan s2 stage result




As per ICH related substances stability trend limit from initial to shelf life


Principle of single pan analytical balance


if you have given a blank water how you analyse by general analytical techniques?


In performance Check of GC Why Hexadecane Peak is Considered 


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


mode of absorption in alimentary canal?


In Karl Fischer titration,What is the situation if the material tested is only soluble in water,and not soluble in the common solvents used such as methanol ?? [e.g. Iron III Hydroxide polymaltose]


which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc


how to select short coloum and long coloumn for new molecule