perchloric acid&glacal acetic acid both are acids but reaction is complete in volumetric titrations.how?
1 7770acetic acid is weak acid & perchloric acid is strong acid.but how perchloric acid is soluble in acetic acid
3 7518today i am doing calibration of HPLC. when i inject the blank it was going on -ve.(bleow then zero) why?
3 6990in karl fischer reagent which solvent is used for dissolving iodine sulphur dioxide and imidazole
4 7106Post New Analytical Chemistry Questions
why we are using benzene, anyline in acetic anhdride assay titration method?
What is FFA, PV, and PAV value in oil.
How to choose concentration of LOQ solutions for RS analysis? Example.
AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?
please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development
What is gelatinization?
How can the GC or HPLC method is selected to determine the impurity profile in drug product?
WHAT IS THE USE OF STARTER ?????????
is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth
How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain
What is viod volume and peak purity in HPLC?
what is definition of validation? which components are followed give detail?
How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.
Why to use propyl paraben in HPLC gradient calibration
