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Title: Fundamentals Of Chromatography
Author: Randy Juneau
Source: 1983 Gulf Coast Measurement Short Course (Now called ASGMT)
Year Published: 1983
Abstract: The gas chromatograph is a tool that separates natural gas into basic components, determines the mole percents of the components, and mathmatically determines the heating value and specific gravity of the sample. Until recently, the gas chromatograph has been used only in laboratories. With the advent of microprocessor technology, chromatography has become more useful to us in the field. State-of-the-art electronics is used to control the chromatographic process and perform otherwise very tedious calculations to yield a total gas quality report on a sample, The Information obtained from a chromatograph analysis is used for various purposes. Heating value and specific gravity are used in determining the price we pay for natural gas. Nitrogen and carbon dioxide percents are used to calculate supercompressibllity when determining flow rates. Some examples of variations in flow rates for different values of nitrogen and carbon dioxide are shown in Table 1.

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