One Raw material failed assay test is there any chance for failing purity of that material ?7 8550
What are the differences between GC and HPLC?1 12131
Why do we need GC instead of HPLC? or Why do we need HPLC instead of GC?4 9206
What is linearity in HPLC and how will you test?1 16254
What is the difference of time between two consecutive injections in HPLC?2 7960
Why we are use 0.005M Sulphuric acid, in control of absorbance performance test UV Spectrophotometer calibration2 12059
How much sample concentration should i inject against diluted standard in related substances for drug product in hplc analysis1 2167
how to prepare 25 ppm acetone. explian with formula4 11743
What is the diffeence between assay and uniformity of content2 7069
why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?
Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?
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.
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?
1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer
why we are using hexane in calibration of number of drop per mL
How much is the standard area for glc analysis
How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample
how to select short coloum and long coloumn for new molecule
what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.
function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?
what is procedure of actual procedure for registration of drug?
what is the procedure for cleaning of lenses of hatr accesory of ftir instrument?
what is peak purity and its formula
How to check hplc detecter sensitivity?