It develops, manufactures, sells, and services analytical chromatography systems for separating, isolating, and identifying the components of chemical mixtures.
[3] Such equipment is used in pharmaceutical manufacturing, medical research, environmental monitoring, and food testing.
[4] In December 2010 Thermo Fisher Scientific announced its acquisition of Dionex for $2.1 billion.
Dionex, traditionally known for its ion chromatography capabilities, has led this side of the field.
Dionex also acquired ESA Biosciences' HPLC assets in 2009, expanding its expertise in this area.