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. 30, 1996
Filed:
Sep. 16, 1994
Nobuyuki Shigetoh, Osaka, JP;
Jipsei Miyazaki, Osaka, JP;
Hiroshi Nakayama, Osaka, JP;
Keiko Yugawa, Osaka, JP;
Tadayasu Mitsumata, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A labelling color of pentamethine, its intermediate and a method for preparing and using the same to detect methamphetamine with high sensitivity. The invention is exemplified by pentamethine of the following Formula (1): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each are a C.sub.1-6 alkyl group, and X is an anion. A method for using the labelling color to detect methamphetamine. The method comprises preparing a solution of the labelling color and methamphetamine-antibody in a buffer, measuring its fluorescent intensity at 660 nm in a 600 nm excited state, adding methamphetamine in a buffer to the solution, measuring its fluorescent intensity similarly, and examining the change in fluorescent intensity between both solutions.