Abstract
Abstract A gas chromatographic system is applied to shipboard measurement of dissolved argon, oxygen, nitrogen, and total inorganic carbon dioxide in sea water. Gases are stripped from acidified sea water with helium carrier gas, separated by passing through silica-gel and molecular sieve 5A columns, and subsequently analyzed with a thermal conductivity detector and an ultrasonic detector. Ca. 15 min is required to analyze a 3 cm3 sea water sample. Intercalibration by other analytical techniques for oxygen and total carbon dioxide confirmed the accuracy of this method. Vertical profiles of the gases in the Pacific Ocean demonstrate the merit of the method.
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