Principle of HPLC (Liquid Chromatography)
High-performance liquid chromatography is an effective type of column chromatography which is widely used in pharmaceuticals. It is very useful to determine the assay and related substances in drug substances. In general, HPLC is used to separate the components of a mixed drug substance.
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In HPLC chromatography, column plays a significant role in the separation of different compounds because it contains stationary phase. The stationary phase is a bad of polar or non-polar particles according to the type of column. Polar and non-polar columns are used according to the nature of the sample to be analyzed.