Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

what is kf principal

Indian Immunologicals, Dr Reddys,

5 7892

What do you mean by potency in Analytical industry

3 5342

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 5999

what is the difference between Hydrochloric Acid & Hydrogen chloride

3 5681

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 7649

what is difference between assayand potency


4 7705

What is the difference between GSC & GLC?

3 17921

pda detector mechanism?

Teva Pharmaceuticals, DKR,


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

Reddy Labs,

3 5133

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

3 6760

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Un-Answered Questions { Analytical Chemistry }

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


why octanol used to determine the partition coefficient ?


My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards


What is the calibration of uv process and preparation


WHY given much noise PDA dector then VWD Dector


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


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


what is weight veriation in pharma industry ? plz explain me


How to start the dissolution development for unknown tab?


what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?


What is the pilot-plant in pharma sector.


How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium


how the compound separate in coulunm,explain


what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?


Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?