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:
Apr. 08, 2014
Filed:
Feb. 02, 2012
Applicants:
Satoshi Koide, Tokyo, JP;
Kenji Yokoyama, Tokyo, JP;
Yoshio Suzuki, Tokyo, JP;
Inventors:
Assignees:
Tanita Corporation, Itabashi-Ku, Tokyo, JP;
National Institute of Advanced Industrial Science and Technology, Chiyoda-Ku, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 7/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of purifying 8-isoprostane is provided that includes a step of contacting a liquid sample containing 8-isoprostane with an ion exchange support having a quaternary ammonium salt immobilized thereon such that 8-isoprostane in the liquid sample is retained on the ion exchange support and a step of eluting 8-isoprostane from the ion exchange support using a first eluent containing a water-soluble organic solvent and water as main components.