perchloric acid&glacal acetic acid both are acids but reaction is complete in volumetric titrations.how?1 9982
acetic acid is weak acid & perchloric acid is strong acid.but how perchloric acid is soluble in acetic acid3 9718
Column selection in HPLC method development?1 11540
How to prepare ppm solution of Nacl form its salt?5 63644
what is mean by assay?6 18604
why we are doing seal wash and needle wash?3 14007
which functional group we can detect in IR?3 10212
what is mean by UOD?2 9039
what is mean by content uniformity?5 8494
today i am doing calibration of HPLC. when i inject the blank it was going on -ve.(bleow then zero) why?3 8710
what are the sources in ELSD,PDA, RI and UV Detectors?1 7101
in karl fischer reagent which solvent is used for dissolving iodine sulphur dioxide and imidazole4 9262
if peak get problamatic then what require to do?
what is procedure of actual procedure for registration of drug?
why does used dry caffien in HPLC calibration?
What is rs test why we are performing rs test?
why digestion require in icpms?
in which situation ion pair agent require to use?
what is the principle involved in turbidometry and nephelometry ?
which lights using during force degradation?
Explain the relations between number of carbon atoms in alkanes and retention time ?
In BP2013, Loperamid HCl monograph. Assay by titration with 0.1N sodium hydroxide using hydrocloric acid 0.01N and reading the volume added between the 2 points of inflexion. I have a question that if the diluent solvent is ethanol is certainly consumed a amount of volume of titrant, so this volume must be eliminated on the result calculation or not apart from first point which is subtracted above.
how we can identify the impurity is coming below loq at transfering site?
What is the Formula for coreletion coefficient in plhplc calibration
In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?
how to set sample and standard concentration in RS method?
in which situation require to take incident in validation?