Shimadzu Corporation

Keiji Inoue

Youzo Morita

An inorganic carbon removing part defined by has a double tube structure formed by an inner tube of polytetrafluoroethylene having continuous pores and an outer tube of resin. An acidified sample solution is guided into the inner tube and an alkalified sample solution is guided into the outer tube, and inorganic carbon contained in the acidified sample solution is outwardly moved toward the alkalified sample solution to be removed. The acidified sample solution, from which inorganic carbon is removed, is injected into a combustion tube, so that a carbon component contained in the sample solution is converted into carbon dioxide and detected by a detecting part. Since the alkalified sample solution contains purgeable organic carbon components of the same concentration as the acidified sample solution, the content of total organic carbon is correctly measured with no loss of the purgeable organic carbon components.

Apparatus for measuring total organic carbon

A purgeable organic carbons analyzer for measuring the content of purgeable organic carbons (POC) in a water sample using barium hydroxide as the CO.sub.2 absorbing agent in a CO.sub.2 absorber.

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Suita, Japan

Keiji Inoue