why we use only vanilline , acetanilide,& caffeine For the Calibration of melting point appartus?
7 29524which solvent is highest poler acetonitrile dimethyl formamide methanole tetrahydrofurane buffer solution
8 13575i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me
2109Post New Analytical Chemistry Questions
Why we check moisture,ash & AIA in product
we can use expired sample for validation and analyst qualification?
How do we fix the sample concentaryion in hplc method development?
what is classification of elemental impurities? what is risk assement in elemental impurities?
what is the extinction coefficient for Indomethacin or at 319nm wave length.
what is diffrence between specificity and selecivity?
What is the formula for relative diffrence for standard solution in solution stability in validation?
Colorimtry
Explain the relations between number of carbon atoms in alkanes and retention time ?
in dissolution if one bowl got 70 percent 2nd bowl got 80 percent and 3rd bowl got 90 percent then how proceed?
what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.
how a particular wavelength can be different for a particular compund while analysing by uv and by HPLC.
Tell me something about Vitamin A test method by HPLC
If suppose 10 methods of dissolution given in pharmacopoeial for single content product then which method out of 10? or all 10 require to follow?
What is the use of tlc and hplc? And when and where use?
