Answer Posted / rajeev
Mixed Phosphate Buffer pH 6.8 As Per IP :- 28.80 gm of disodium hydrogen phosphate and 11.45 gm of Potassium dihydrogen phosphate in 1000 ml with water.
| Is This Answer Correct ? | 7 Yes | 0 No |
Post New Answer View All Answers
how you start the solubility study?
what is classification of elemental impurities? what is risk assement in elemental impurities?
what is the acceptance criteria for enteric coated tablets in 0.1n hcl validation in each parameter?
from where i get mortar pastle for glass bottle crush? it's required for testing of it?
why holium oxide prepared in 10% HCLO4 SOLUTION
Why six unit used for precision?
How to decide assay range for non pharmacopeial API analysis by HPLC? Could you give me any reference for same e.g Guidelines or Paper publications?
WHY pKa value is more important than pH value of the mobile phase in HPLC?
how to calculate elemental impurities?
please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development
Explain the relations between number of carbon atoms in alkanes and retention time ?
4. Describe the operation of the Craig apparatus. Chapter.3 Equilibrium Processes in Separations
What is Band broading effect explain
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.
Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?
