PostHeaderIcon How HPLC Is Utilized In The Laboratory

HPLC analysis is an interesting process utilizing stationary and solid phase with a mobile or liquid phase.  A glass or metal, or even plastic tube, called a column, is used to house the stationary phase, usually silica beads or some sort of porous solid laminated with targeted compounds at varying levels so it attracts those items which need separating.  As the reactive solvent including the compound moves through the column, separate molecules or even atoms can attach themselves  to the stationary phase, thus separating the compound into its constituents.

We have always used so many techniques in the lab over the years but one of these included the synthesis of individual proteins.

This all commences with the purifying of amino acids and this can be fulfilled by using HPLC columns to separate the separate amino acids from different proteins.  The column has a stationary phase that can separate the individual amino acids as the proteins make their way through the column.  The proteins go through a liquification and homogenization process via a series of solvents, and the solvent becomes a carrier, known as the mobile phase.  The proteins are separated in an efficienct way as it is pumped through the system.

Particle size as well as pore size in the stationary phase of an HPLC column is critical to the velocity at which the phase can separate the compound travelling through it.  Silica is a popular substance used in reverse-phase chromatography, and this can be applied in a HPLC chromatography system.  Silica is not the only substance, and great care should be taken when using certain acidic solvents.  Temperature is also important, as excessive heat can damage the silica.  The electrical make up, as well as pore size found on the beads are the main benefits of silica.

Leave a Reply