Abstract Flexible sample containers for liquid scintillation spectrometry analysis of test samples containing one or more radioactive isotopes disposed in a liquid scintillator wherein the flexible sample containers either in individual or strip form are made of layered, flexible, light-transmissive, polyester film and are provided further with means for avoiding light ''''piping'''' or optical isolation from respective adjacent sample containers. Apparatus for handling such flexible sample containers is provided with light transmission sealing means for preventing entry of ambient light or escape of light from the photomultiplier tube detection devices. Also disclosed are methods and apparatus for filling, forming, sealing and handling the aforementioned flexible sample containers that readily lends itself to fully automated production line type operations.
In a sample container for liquid scintillation spectrometry analysis including at least a pair of layers of flexible, lighttransmissive, polyester film, means defining a joint between said layers to form an enclosed bag portion for holding said liquid sample, means for filling said bag portion, the filling means being sealable when the bag portion is filled with sample to form the liquid tight seal with said sample within the container bag portion, the improvement comprising, annular light reflective means disposed about the periphery of said bag portion and the central portion of said bag remaining light-transmissive.
Claim 2
Dependent Claim
96 words
In a sample container for liquid scintillation spectrometry analysis including at least a pair of layers of flexible, lighttransmissive, polyester film, means defining a joint between said layers to form an enclosed bag portion for holding said liquid sample, means for filling said bag portion, the filling means being sealable when the bag portion is filled with sample to form the liquid tight seal with said sample within the container bag portion, the improvement comprising, annular light reflective means disposed about the periphery of said bag portion and the central portion of said bag remaining light-transmissive.
Claim 3
Dependent Claim
23 words
A flexible sample container as claimed in claim 1 wherein said liGht reflective means is disposed on both sides of the bag portion.
Claim 4
Dependent Claim
24 words
A flexible sample container as claimed in claim 1 wherein said light reflective means is an aluminized film member secured to said bag portion.
Claim 5
Dependent Claim
23 words
A flexible container as claimed in claim 1 wherein said reflective means comprises an opaque white film member secured to said bag portion.