Chromatography is a laboratory technique for separating compounds within a mixture, first devised in Russia in 1900 by Mikhail Tsvet. There are two phases of chromatography – the mobile and ...

It is classified into two types based on the physical state of the mobile phase used – liquid chromatography (LC) and gas chromatography (GC). Chromatography includes a series of procedures that ...

Multidimensional gas chromatography (MDGC or 2D-GC) increases resolution by using two separate columns with two different stationary phases. One form of MDGC is heart-cutting. After a preliminary ...

Chromatography works by distributing the components of a mixture between two phases, known as the stationary phase and the mobile phase. Liquid chromatography uses a liquid mobile phase, with the ...

Mobile phase ion chromatography (MPIC) is a term often used in the context ... These ion pairs do not have any solvent molecules between the two ions. The greater the charge on the analyte and the ...

Two substances are likely to be the same if ... R f values vary from 0 (the substance is not attracted to the mobile phase) to 1 (the substance is not attracted to the stationary phase).