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. 21, 2025
Filed:
Feb. 06, 2020
National Institute for Environmental Studies, Ibaraki, JP;
Japan Agency for Marine-earth Science and Technology, Yokosuka, JP;
Hiroshi Koshikawa, Ibaraki, JP;
Masanobu Kawachi, Ibaraki, JP;
Shigeshi Fuchida, Ibaraki, JP;
Shuhei Ota, Ibaraki, JP;
Tetsuya Miwa, Kanagawa, JP;
Yasuo Furushima, Kanagawa, JP;
Shunsuke Kondo, Kanagawa, JP;
National Institute for Environmental Studies, Ibaraki, JP;
Japan Agency for Marine-Earth Science and Technology, Yokosuka, JP;
Abstract
The present invention provides a device () for detecting contamination with a photosynthesis inhibitor, the device including a collection device () configured to collect a test liquid, a light-blocking pretreatment tank () configured to store the test liquid () collected by the collection device in a state of containing phytoplankton, a stirring device configured to maintain a floating state of the phytoplankton in the test liquid stored in the pretreatment tank, an irradiation light source configured to irradiate the phytoplankton in the test liquid stored in the pretreatment tank with weak light having an underwater photon flux density that does not cause photoinhibition, a drainage conduit () configured to allow the test liquid discharged from the pretreatment tank to flow thereinto, and a fluorescence quantum efficiency measuring machine () provided for the drainage conduit and configured to measure a fluorescence quantum efficiency of the phytoplankton in the test liquid discharged from the pretreatment tank, and a method for detecting contamination with a photosynthesis inhibitor, the method including a liquid supply step, a storing and weak-light irradiation step, and a fluorescence quantum efficiency measurement step.