Which is the highly polar and highly non polar column in HPLC?
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why buffer is added in solvent system in HPLC ??
full name of OOS & OOT ? Dercribe it with details ? why this is needed in pharma industry ?
How can you calculate manually "Slope" in pH calibration?
Wath is the differenc between two column HPLC wich have the samme support , lenth , pore size, etc.. But different name .for exemple : Spherisorb / lichrosorb
what is difference between drug products and drug substance?
how you confirm the assay method?
Why we are use 0.005M Sulphuric acid, in control of absorbance performance test UV Spectrophotometer calibration
How to prepare ppm solution of Nacl form its salt?
how can delete the impurity in 1-(2:6 dichloro phenyl)-2-indolenone.and desolving the impurity in which solvent but does not desolve product in solvent.
iam usig ph buffers merk. manually how to prepare ?
What is delay volume?
What is difference btw UV detector & RID detector