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:
Jan. 05, 2010
Filed:
Dec. 12, 2003
Hironori Tashiro, Chiba, JP;
Shinji Ito, Chiba, JP;
Hironori Tashiro, Chiba, JP;
Shinji Ito, Chiba, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
Provided is a method of measuring a biodegradation rate of a non-natural organic compound in the presence of a biodegradation medium, characterized by including: measuring a concentration of a radioactive carbon isotopeC in a biodegradation medium; and measuring a biodegradation rate of a non-natural organic compound from a difference between the concentration ofC in the biodegradation medium and a concentration ofC in modern carbon. Further, a metal such as iron in the medium can be used as an internal standard. According to the method, a biodegradation rate of a non-natural organic compound can be measured safely, simply, rapidly, and accurately without providing any special measures against radiation.