what is the different in Total ash, sulphated ash, acid
insoluble ash, alcoholic or non alcoholic ash?
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how can you decide API molucule acedic or basic compound by test?
In UV-VIS spectrophotometer:My diluent is methanol even though i corrected base line for methanol,In my sample scan i found methanol peak.what is the reason?
Wath is the differenc between two column HPLC wich have the samme support , lenth , pore size, etc.. But different name .for exemple : Spherisorb / lichrosorb
why we are using benzene, anyline in acetic anhdride assay titration method?
Explain in detail what are the procedure and calculations involved for accuracy (%Recovery)in method validation?
what is the working priniciple of ph, what are parts in ph meter
Why we use uracil and caffeine in hplc calibration
how much wave length of Soduim vapour lamp used in polarimeter
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What is calibration procedure of gredient HPLC pump
why kbr is used for pellet preparation in ir spectroscopy, give the reasons? why kbr shows zero dipole moment?
What is the limit for single maximum impurity limit as per USP??
Which is the highly polar and highly non polar column in HPLC?