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Difference between uv detector nd RI DETECTOR? wt s the difference between OVI Solvents nd residual solvents incase of GAS CHROMATOGRAPHY? nd wt s its detection limit?
3 15989on what basis SOP's can be changed? IF mobile phase ratio is 70:30 to how much % can we change the ratio in HPLC process
7 17553how do start hplc method development? how much sample required for developing the method development?
3 52799which pharmacopeoia mentions that caffiene is used as a standard for HPLC calibration? which other standardscan be used for the same?
1 9187Why will a solution of aspirin without acid or basic hydrolysis give yellow colour with a solution of Ferric chloride?
1 5779In HPLC what is Single point threshold, peak purity index and minimum peak purity index? what should be consider for pure peak.
3 32351Post New Analytical Chemistry Questions
in which situation ion pair require to use?
What is dose dumping? why require to do?
Qc interview questions
which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc
How to set analyticl specification for combination products?
How require to develop GC method? how to select diluent, GAS, column selection and other chromatographic conditions?
why we use a particular hplc column for a particular compound give reasons?please
in dissolution why pool sample needed? in which type of drug pool sample need?
UV and PDA detector, which have less signal to noise ratio?
why salisylic acid not using now days for disdolution calibration?
Why six unit used for precision?
If inhouse hplc related substance method is completly diffrent from Usp for finished proďuct with diffrent impurities then how require to prove method equivalecy?
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.
What is the requirement for brazil in the analytical method vslidation comparr to ich?
why require to do water content for drug product?
