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:
Sep. 17, 2024
Filed:
Apr. 04, 2019
Shimadzu Corporation, Kyoto, JP;
Yuka Fujito, Columbia, MD (US);
Risa Ishii, Hitachi, JP;
Michio Butsugan, Hitachi, JP;
Keita Sakurai, Hitachi, JP;
SHIMADZU CORPORATION, Kyoto, JP;
Abstract
Supercritical fluid extraction can experience problems of prolonged extraction times and undesired elution of target components of a trap sample. To resolve these problems, a sample is stored in a container () disposed upstream of a back-pressure control valve (). A mixed fluid of carbon dioxide in a supercritical state and a modifier is introduced into the container, and a component contained in the sample is extracted. The extracted component is introduced into a trap column () together with the carbon dioxide and the modifier and collected in the trap column. The trap column is loaded with polymer beads as a filler to securely collect an extracted component in the trap column, even when the modifier in the supercritical fluid is increased.