what is classification of elemental impurities? what is risk assement in elemental impurities?
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what is dissolution What is unit of KF? what is the significant of pH in HPlc? WHY POTASSIUM HYDROGEN PTHALATE IS USED FOR PERCHLORIC ACID? What is difference btw UV detector & RID detector?
What is primary & Secondary Standard ? Give Example
What is similarity factor and its use in api strength?
How to do spike of aflatoxin in peanut to get maximum recovery
What is chiral and why this performing in HPLC
what is the basic principle of conductivity meter
What is difference between" LOD" AND "VACCUME LOD"
How to determine water content of thioanisole? which interfere by KF titration?
from compund pka value how to select buffer and column?
2 Answers Emcure, Zydus Cadila,
Why dissolution test is not performed in all of the products
A new drug substance found fail to meet specification for an unknown Impurity during stability study(Specific change),how would further proceed?
if the purity is 99.9%,is need to do assay?