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:
Dec. 07, 1993
Filed:
May. 08, 1991
Applicant:
Inventor:
Colin G Potter, Headington, Oxford, GB;
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01T / ;
U.S. Cl.
CPC ...
436 57 ; 436166 ; 436177 ; 436178 ; 436542 ; 436804 ; 250362 ; 250364 ;
Abstract
A method for filtration assaying a particulate sample labelled with low-energy radioactive isotopes measurable by scintillation counting. The method aspect of the invention includes the step of providing a sample comprising sample particles labelled with low-energy radioactive isotopes in a liquid medium. Scintillant particles are added to the liquid medium. The sample is then filtered with a filter medium adapted to retain the sample particles and the particles of scintillant, such that after filtration the sample particles are each surrounded by scintillant. A photodetector is then used to detect light emitted by the scintillant on the filter medium.