Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

what is diffrence between shelf life and expiry date?

1 1253

how you start RS method development when for new product?

448

how you establish the LOQ?

491

in which situation require to use paddle and basket?

488

what is mean by dissolution hydrodynamics?

553

column washing procedure for normal phase and reverse phase?

1 1225

how to convert normal phase hplc to reverse phase and vice versa?

1 2194

if your impurity coeluting with each other in that situation how require to set specification? is it acceptable?

625

what is mean by extactable and leachable study?

805

how to calculate elemental impurities?

749

how you fix the limits of impurities?

557

what is mean by nitrosamine impurities?

733

if instrument calibration fails then what require to do?

666

why require the ph, buffer during hplc mobile phase?

582

is it nessesary to do solution stability for 7 days?

487


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Un-Answered Questions { Analytical Chemistry }

if identification threshold crosses the limits then what next step?

568


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

7193


Why we check moisture,ash & AIA in product

1599


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

1995


Why we use potassium dichromate in uv calibration Exact reason behind it??

871


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

1713


Principle of single pan analytical balance

4810


what is the difference between potentiometric titration and karl fischer titration?

2774


How to set analyticl specification for combination products?

505


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

1916


how you establish the LOQ?

491


what is the procedure for cleaning of lenses of hatr accesory of ftir instrument?

2019


What is the main difference between ODS1 and ODS2 Hplc column.

4784


Many times I don't got a caffeine peak in calibration of hplc using guard column ❓

1428


could negative ions be produced by bombardment process in mass spectrometry?

1507