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:
Apr. 15, 1980
Filed:
Oct. 25, 1977
Peter Eneroth, S-171 42 Solna, SE;
Wladimir Wladimiroff, S-753 30 Uppsala, SE;
Other;
Abstract
A gated, pulsed laser spectrofluorometer is provided analyzing subpicogram amounts of fluorescent substance in sample volumes of less than 10 .mu.l. This is accomplished by repetitively exciting the fluorescent sample with a subnanosecond, intensive excitation radiation pulse and by gating a fluorescence radiation detector output signal so that detection starts after the excitation radiation pulse has decayed to a negligible intensity and ends when the fluorescence radiation detector output signal caused by the fluorescence emission from the sample has decayed to a level comparable to the electrical noise level of the electronic measuring apparatus connected to said fluorescence radiation detector.