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. 03, 2024
Filed:
Feb. 25, 2020
Hitachi High-tech Corporation, Tokyo, JP;
Makoto Nogami, Tokyo, JP;
Daisuke Akieda, Tokyo, JP;
Shinya Matsuoka, Tokyo, JP;
Shinya Ito, Tokyo, JP;
Hitachi High-Tech Corporation, Tokyo, JP;
Abstract
An analysis apparatus capable of adjusting holding time of each stream in a plurality of HPLC streams without adjusting a pipe length, and capable of determining degradation of a separation column, a liquid-delivery failure, or the like without removing a pipe from the apparatus is implemented. Air is suctioned from the shipperand injected into the verification flow pathsand, and holding time when a baseline of the detectorchanges is stored in the control unit. The air in the verification flow pathsandof the streamand the streamis measured, and holding time of the streamand holding time of the streamare compared to determine whether or not there is a difference of 1 second or more in the holding time. When the difference in holding time is 1 second or more, correction is performed. Holding time information of the same verification flow pathsandin the streamand the streamare compared with holding time information stored in the control unitand correction is performed when the difference in holding time is 1 second or more.