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Title: Energy Measurement Using Gas Chromatography
Author: D. L. Aquin
Source: 1982 Appalachian Gas Measurement Short Course
Year Published: 1982
Abstract: Gas chromatography is a physical separation of two or more compounds based on their different distribution between two phases, one of which is stationary and the other a gas. Gas chromatography Is divided into two classes: gassolid chromatography (GSC) which is employed primarily for light cases, and gas-liquid chromatography (GLC) which is more broadly applicable to a much wider range of components. Chromatography had its beginning about 1850 in the separation of dyes by F. F. Runge. In 1906 Tswett described the use of glass columns packed with a suitable adsorbent for separation of colored plant pigments. He applied the term chromatography, colorwriting, to this process. The first apparatus was described by Martin and James in 1952, but the real potential of the technique could not begin to be realized until the publication by Ray of the first chromatogram in 1954. The detector he employed was thermal conductivity - still in widespread use today. In about 1955 the first commercial instruments became available.

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