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Chromatography

The term chromatography, which literally means “to write with color”, was first introduced in the early 1900s to describe its use in separating plant pigments. In chromatography, molecules are separated by dissolving a mixture in a mobile phase (e.g., buffer) and passing it through a stationary phase (e.g., chromatography beads).

By the second half of the century, several techniques quickly emerged using paper, gas, and liquid chromatography to separate a variety of molecules.

In 1959, Pharmacia (now GE Healthcare) led the way by introducing Sephadex, the world’s first gel filtration chromatography media (resin). Today, our range of chromatography systems and media cover all different types of liquid chromatography and all scales of purification from research to process-scale.

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