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:
Feb. 21, 1989
Filed:
Feb. 26, 1988
Hitachi, Ltd., Tokyo, JP;
Abstract
Desired components can be simply and economically separated and recovered from a sample solution having a complicated composition through a liquid chromatography by passing the sample solution through a separation column, thereby separating components contained therein in the separation column, then selectively passing the eluate from the separation column through a trapping column according to a desired component, thereby trapping the desired component in the trapping column, while discarding or recycling the effluent eluate from the trapping column, and then passing another eluting solution composed of a volatile substance when dried under reduced pressure through the trapping column, thereby recovering eluate containing the desired component from the trapping column.