Why we are use 0.005M Sulphuric acid, in control of absorbance performance test UV Spectrophotometer calibration
2 12059How much sample concentration should i inject against diluted standard in related substances for drug product in hplc analysis
1 2167Post New Analytical Chemistry Questions
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?
