In pharmacopeal solibility parameter of a material, is et essential to test all paramete? If 70-75% parameter passes can we assess that the material is satisfactory or not?1 3035
Why triethylamine and o-phosphoric acid used while setting pH of mobile phase during HPLC Analysis?6 21065
why RID detector is used for selective materials like Mannitol, Hydroxyethyl Starch and Sorbitol?5 6906
for which type of applications gas chromatography is used?2 3821
for which type of applications gas chromatography is used?2 3803
wat is reverse phase in hplc2 5798
For Dissolution test why we are Performing 6 Bowls why not more.any were mentioned or in what basis we are performing? --------Veerabhadrarao.M2 8048
In Number of Theoretical Plates (N) = 16 (tr/w)2. where tr: retention time, and W: peak width. My Question is here in formula what is 16.Can u explain briefly? ---Veerabhadrarao.M3 13342
how to Calibrate FID IN GC1 4799
what is assay in hplc3 7476
why we use deturium lamp in uv spctrophotometer other than lamps1 7197
A new drug substance found fail to meet specification for an unknown Impurity during stability study(Specific change),how would further proceed?2 4330
Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc
4. Describe the operation of the Craig apparatus. Chapter.3 Equilibrium Processes in Separations
In performance Check of GC Why Hexadecane Peak is Considered
In dissolution of tablets/capsules elaborate the Dissolution limit 20.0% to 60% Q in 30 minutes.
what are the standard methods for HPLC?
What is the main difference between ODS1 and ODS2 Hplc column.
what is the importence and role of LCMS and LCMS/MS and their applications? which type of compounds are analysis by lcms?
How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?
HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.
Identify problem faced when mass spectroscopy is used with HPLC system ?
why 6 tablets use for dissolution
Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...
What are modes of quantification in related substances
Why Ethanol is Used for Standardization of GC Head space?
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.