Why potassium hydrogen pthalate is used for perchloric acid And naoh. Why it is used for both acid and base6 24467
is ther any guidline is available for limt of peak fronting.and what is the limt of peak fronting.2 9746
how would you determine the acceptance criteria for cleaning validationof product A for product B?1 5922
How can we konw that the HPLC column is endcapped? Is it possible to identify visually without COA?2 8249
IN DISSOLUTION S1 STAGE 1 BOWL GOT 52%(Q POINT IS 80%)WHAT WE HAVE DO9 11504
what is the meaning of PURITY AND POTENCY .what is the difference between PURITY and POTENCY5 23411
HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.1329
What is the difference between Primay and Secondry Standard ?6 47816
why we have to store the pH electrode in 4.01 buffer ?1 5791
What is column in chromatography?
some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?
why holium oxide prepared in 10% HCLO4 SOLUTION
How we choose the mobile phase for method development.?
In rs method development when we are going area normalization method to dilute standard method?
Explain what is a base line?
what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?
How to fix the sample conc. in Related substances test by HPLC?
how to calculate corelation coefficient in G.C Calibration? what is the calculation part?
Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?
For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?
Why six unit used for precision?
How to choose the which salt is suitable for mobilephase
Why dissolution test is not performed in all of the products
How you develop a method in HPLC?