Measurement equipment null of carbon dioxide partial pressures which dissolve in the seawater

摘要

PROBLEM TO BE SOLVED: To provide a device for measuring the partial pressure of carbon dioxide dissolved in sea water, provided with a gas/liquid equilibrator capable of speedily bringing into equilibrium the partial pressure of carbon dioxide between sea water and gases into contact with the seat water and attaining equilibrated gases by flow through. SOLUTION: This device comprises a means 29 for maintaining a constant liquid level 27 an is provided with a gas/liquid equilibrator 20 cylindrically constituted of both a bubbling part 22 for causing a supply gas to bubble by a bubbler 26 an a mixer part 23 connected above the bubbling part 22 with a support rod 24 inside and vane 25. A supply gas is supplied to the bubbler 26, and seawater is supplied from the upper center of the mixer part 23 to bring the partial pressure of carbon dioxide between seawater and gas into equilibrium. Then the partial pressure of carbon dioxide in the equilibrated gas is measured, while providing the equilibrium gas for a CO2 analyzing means from the upper periphery of the mixer part 23.