The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 1996
Filed:
Sep. 08, 1995
Youzo Morita, Kameoka, JP;
Keiji Inoue, Suita, JP;
Shimadzu Corporation, , JP;
Abstract
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.