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:
Nov. 09, 2010
Filed:
Apr. 03, 2006
Yasuo Tsukuda, Mishima-gun, JP;
Yasuo Tsukuda, Mishima-gun, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
In a spectrophotometer for measuring transmitted light of a trace liquid sample, four sample holdersare provided on a disk-like sample platewhile spaced apart by 90 degrees. The sample plateis driven to rotate so that each of the sample holdersis sequentially moved to a sample supply position U, a measuring position U, a wiping position Uand a waiting position U. At the sample supply position U, a trace amount of the liquid sample is dropped into a groove of the sample holder. Then at the measuring position U, a window plateis lowered onto the groove so as to determine the optical path length. Next, measurement of the transmitted light is performed. Further, while the sample holdermoves from the measuring position Uto the waiting position U, the liquid sample is absorbed and removed by contact with a cleaning pad. The liquid sample attached to the window plateis wiped out by another pad. Since the operation to wipe off the measured sample is automatically performed, it is possible to improve the throughput of the measurement.