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Retention time & Relative Retention time Definition & between difference? How to Calculate response factor(RF) & relative response factor(RRF)?
3 20597What is the definition of water content or moisture content,what is the procedure going on w.c amalysis?
1 11041Post New Analytical Chemistry Questions
What is the use of tlc and hplc? And when and where use?
2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.
How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.
can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?
what are risk assement in the analytical qbd?
What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.
what is biorelivent dissolution media?
what is the difference between potentiometric titration and karl fischer titration?
Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?
Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?
What is control room temperature and which guide line says?
give clarity of linearity and range in method validation
If combination product how require to identify which imp is of which api?
in OSD forms require to use gas chromatography?
which batch require to use for analytical method validation?
