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Title: Verifying Gas Chromatographs at Custody Transfer Locations
Author: Kyle Flint
Source: 2019 American School of Gas Measurement Technology
Year Published: 2019
Abstract: Chromatography is the separation of a mixture by passing it in solution or suspension or as a vapor (as in gas chromatography) through a medium in which the components move at different rates. Russian botanist Mikhail Tswett is credited with discovering the technique of chromatography. He used chalk and alcohol to determine plant extract properties. Verifying gas chromatographs at custody transfer locations is one of the most critical measurement procedures there is today. Not knowing exactly what the Gc is reading and how accurate the results are could cost the company hundreds of thousands of dollars depending on flow rates and time between verifications. Calibrations are not always a fool proof way making sure that the Gc is working correctly since minor human errors can occur.

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