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:
Jan. 04, 2011
Filed:
Jun. 17, 2009
Naoki Osaka, Kyoto, JP;
Naoki Osaka, Kyoto, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
A technique for extracting an objective component from a sample solution and obtaining the component in the form of equally separated powder aliquots is provided. A peak detectordetects the start point of the peak of the objective component on a chromatogram created from detection signals produced by a detector. Then, a controllerimmediately changes a valveso that the eluate will flow to a trap column. A peak area processorcalculates the peak area of the objective component in real time. When the calculated area has exceeded a threshold, the controllerchanges the valveso that the eluate will flow to the next trap column. Thus, the trap columnstoare sequentially selected to divide the peak into one or more portions with the same area so that the objective component in the eluate will be sequentially captured by the trap columnsto. Subsequently, the objective component is eluted from each trap column, and then the solvent is vaporized, to obtain powder of the objective component.