Instrument: Gas Chromatograph
Instrument separating gases, volatile substances, or substances dissolved in a volatile solvent by transporting an inert gas through a column packed with a sorbent to a detector for assay. (from SeaDataNet, BODC)
Used to measure Total CO2, determined by acid stripping a 1.113 ml volume of water sample or TCO2 standard, trapping the expelled CO2, and then injecting it into the chromatograph had a thermal conductivity detector.