Scintillation apparatus and method with surface-modified polyethylene sample vessels
OwnerHarold Edelstein, Daniel M. Koettersinventors
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Abstract
Liquid scintillation vials are disclosed formed from polyethylene or polypropylene and fluorinated on at least the inner surface. The advantageous physical properties and disposability of polyethylene or polypropylene are retained, while reducing permeation of organic solvents of the scintillation cocktail into or through the walls. Therefore problems of vial swelling, resulting in jamming of scintillation counters, are avoided.
Claims14
A method of determing the radionuclide content of an aqueous sample wherein the sample and an organic scintillation cocktail are mixed in a sample vessel, the filled sample vessel is placed in a counter sample well and the light bursts emitted from the filled sample vessel in the sample well are counted, characterized by the sample vessel being polyethylene or polypropylene and at least the inner surface of the polyethylene or polypropylene sample vessel being fluorinated.
A liquid scintillation counting apparatus having a sample vessel of the type adapted to be placed in a counter sample well opposite the face of a photosensing device and containing a scintillation mixture containing a volatile organic solvent and a biological sample, characterized by the sample vessel being polyethylene or polypropylene and at least the inner surface of the polyethylene or polypropylene sample vessel being fluorinated.
Dependencies are inferred from the claim text.