Scintillation proximity assay for measuring benzene absorption in a polyethylene membrane

Michael A. Diaz, Robert K. Mansfield, Dibakar Bhattacharyya, Michael Jay

Research output: Contribution to journalArticlepeer-review


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 languageEnglish
Pages (from-to)179-183
Number of pages5
JournalJournal of Membrane Science
Issue number1-2
StatePublished - 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


  • 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


Dive into the research topics of 'Scintillation proximity assay for measuring benzene absorption in a polyethylene membrane'. Together they form a unique fingerprint.

Cite this