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. 25, 2011
Filed:
Oct. 14, 2003
Hiroo Wada, Kyoto, JP;
Kenzo Kotera, Kyoto, JP;
Hisashi Matsuura, Kyoto, JP;
Kiyokatsu Jinno, Toyohashi, JP;
Yoshihiro Saito, Toyohashi, JP;
Hiroo Wada, Kyoto, JP;
Kenzo Kotera, Kyoto, JP;
Hisashi Matsuura, Kyoto, JP;
Kiyokatsu Jinno, Toyohashi, JP;
Yoshihiro Saito, Toyohashi, JP;
Shinwa Chemical Industries, Ltd., Kyoto-shi, JP;
Abstract
Described is a copolymer of methacrylic acid and ethylene glycol dimethacrylate which does not have any specificity to general organic solvents, can thus adsorb wide variety of the organic solvents, shows almost no desorption-adsorption hysteresis and therefore, is excellent in desorption characteristics. Also described is a method for the preparation of the copolymer; an adsorbent or a concentrating medium comprising the copolymer; a loop used in an injector for chromatography which is packed with the adsorbent or concentrating medium; a needle for solid-phase microextraction (SPME) which is packed with the adsorbent or concentrating medium; a kit for the preparation of a sample comprising the needle for SPME; a method for concentrating a sample; and a method for analyzing an analyte present in a sample.