Shaker (laboratory)

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A thermostatted shaker, as used in biochemistry work

A shaker is a device used in chemistry and biology laboratories to stir liquids.

A typical shaker has a table board that oscillates horizontally, powered by an electric motor. The liquids to be stirred are held in beakers, jars, or Erlenmeyer flasks that are placed over the table; or, sometimes, in test tubes or vials that are nested into holes in the plate.

Shakers have been replaced by magnetic stirrers for many purposes, but are still favored for some situations.

See also