Back to results
US 4,275,300 AGranted
Fluorescent composition, a process for synthesizing the fluorescent composition, and methods of use of the fluorescent composition
AssigneeVarian Associates, Inc.
InventorSeth R. Abbott
Life of this patent
Estimating the term…
Abstract
A fluorescent composition useful in thin-layer chromatography comprises an inert porous particle having a fluorescent material fixedly attached by covalent chemical bonding to the surface thereof. A process for synthesizing this fluorescent composition is disclosed. A method for detecting the radioactivity of a radioactive species using a cell packed with such a fluorescent composition is also disclosed.
Claims18
A method of detecting the radioactivity of a radioactive species, said method comprising the steps of:
- (a) placing the radioactive species in direct contact with a fluorescent composition consisting essentially of inert porous silica or alumina particles having a size of about 5 to 20 microns, and a fluorescent material, said fluorescent material being fixedly attached by covalent chemical bonding to the surface of said particles;
- and
- (b) detecting the degree of fluorescence energized by emitted radioactivity;
- provided that when the radioactivity being detected is that of tritiated hydrogen, said fluorescent composition comprises particles having a size of about 5 to 10 microns.
1 more element
Dependencies are inferred from the claim text.