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:
Aug. 17, 2010
Filed:
Apr. 19, 2002
Applicants:
Hiramatsu Yuka, Saitama, JP;
Yamasaki Kazuhiko, Saitama, JP;
Furuno Masahiro, Saitama, JP;
Inventors:
Assignee:
GL Sciences, Inc., , JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 1/18 (2006.01); G01N 30/00 (2006.01); B01D 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention is directed to a system for pre-treatment of a sample to be introduced in a chromatograph, and a method for performing solid-phase extraction of a component present in a sample. The system uses a syringe having a needle being provided with a porous body having a monolithic structure along at least an appropriate length of the needle and across an overall diameter of the needle. The method includes the steps of inserting the needle into the sample, passing the sample through the needle to retain an analyte within the porous body, and desorbtion of the retained analyte from the porous body.