Abstract
A polyethylene membrane that had been exposed to benzene vapor was sandwiched between two carboxylated poly(vinyl chloride) membranes that contained carbon-14 labeled lysine. The beta-particles emitted from carbon-14 were in close enough proximity to the benzene molecules to induce an excitation and subsequent emission of photons. The number of photons produced, as measured in a liquid scintillation counter, was shown to be proportional to the amount of benzene absorbed by the polyethylene membrane and was dependent on membrane thickness. This scintillation proximity assay technique can be used to study absorption/desorption processes of aromatic compounds in polymeric membranes.
Original language | English |
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Pages (from-to) | 179-183 |
Number of pages | 5 |
Journal | Journal of Membrane Science |
Volume | 69 |
Issue number | 1-2 |
DOIs | |
State | Published - Apr 24 1992 |
Bibliographical note
Funding Information:This work was supported by the national Scl-ence Foundation through Grant No Rll-8110671, through the NSF/REU program (DMR-8900979 ) , and the Commonwealth of Kentucky through the Kentucky EPSCOR Program
Keywords
- diffusion
- fluors
- membrane preparation and structure
- scintillation
- solubility and partitioning
ASJC Scopus subject areas
- Biochemistry
- General Materials Science
- Physical and Theoretical Chemistry
- Filtration and Separation