why we use only vanilline , acetanilide,& caffeine For the Calibration of melting point appartus?7 29524
which solvent is highest poler acetonitrile dimethyl formamide methanole tetrahydrofurane buffer solution8 13575
what is the difference betwen the analytical column & peparative column?4 13279
what is the general mechanism of high performance liqiud chromatography?7 16076
why 2Theta value is consider in the XRPD spectra and how to consider the 2 Theta value2 7358
what does optical rotation and specific rotataion means,difference between them8 31208
i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me2109
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?
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?