Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

what is kf principal

Indian Immunologicals, Dr Reddys,

5 8373

What do you mean by potency in Analytical industry

3 5529

Did anybody have method for acetyl cysteine effervescnce tablet


What are the primary considerations in extractables and Leachables ?



When ever we perform system suitability,inject the corresponding standard 6 times why? is thair any reson

4 6261

what is the difference between Hydrochloric Acid & Hydrogen chloride

3 5897

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

Orchid, Neon,


Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?

Reddy Labs, Aurobindo,


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.

VHB Medi Life Sciences,


Which Zone of our country like conducting of Stability studies(Accelerated & Long term stability studies)as per ICH guidelines.

4 7960

what is difference between assayand potency


4 8009

What is the difference between GSC & GLC?

3 18590

pda detector mechanism?

Teva Pharmaceuticals, DKR,

1 1026

in uv visible spectroscopy calibration why we are using potasium dichromate and tolune

Reddy Labs,

3 5379

why in hplc peaks are in positive side(it means upside) not in negative side?

3 7095

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Un-Answered Questions { Analytical Chemistry }

pharma industries oriented


What are modes of quantification in related substances


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]


For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?


What is diffrence between extractable volume and deliverable volume? Answer pls


What is the difference between spectro meter and spectro photo meter?


Why potassium dichromate was using in Uv calibration?


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,


How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?


what is %labelled amount in content uniformity of dosage unit and its calculation?


What is the exact reason to use THF and IPA in buffers of Reverse phase HPLC as a solvent?


why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?


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


What should be the level/ Percentage of Arsenic in Arsenic free zinc.


how to get accurate result for Residue on evaporation in purified water