why sucrose is used for polarimeter calibration4 29483
why 0.005 M sulphuric acid is used to calbrate spectrophotometer and why caffiene is used for calibrating hplc2 15557
why we use caffeine for hplc calibration?5 14438
How to calculate the maximum loaded sample concentration in HPLC column?2 7419
What is the difference between HPLC and GC?3 14995
what is the criteria for choosing capillary column in GC??is it dependent on sample load?2 4340
When we calculate Impurity against impurity std.solution and when we calculate impurity against diluted standard with applying RRF?2 7654
What is discriminating media? How can u justify/select that which media (pH etc...)is suitable for your dissolution study of your compound?5 20728
What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)5127
Why dissolution test is not performed in all of the products
In HPLC (Waters) software Empower1,2 &3 what is the updation for each version
Why we check moisture,ash & AIA in product
when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.
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 the meaning of Base deactivated vials
What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio
What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)
How to choose concentration of LOQ solutions for RS analysis? Example.
How can the GC or HPLC method is selected to determine the impurity profile in drug product?
Why sodium hydroxide used for maintain pH of phosphate buffer
How you develop a method in HPLC?
What are modes of quantification in related substances
why we are using hexane in calibration of number of drop per mL
what is turbidimetric titration?Give 2 examples.