Proton electron double resonance imaging of free radical distribution in environmental science applications: first results and perspectives

N Nestle, K Shet, D J Lurie

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

In this contribution, we explore the potential of proton electron double resonance imaging (PEDRI) in environmental science (hydrogeological) applications. After a discussion of the hydrogeological motivation for studies of free radical transport in environmental matrices, we present results from first experiments that show the principal applicability of the PEDRI technique to sediment samples. Field-cycled (FC) relaxation time contrast is identified as a possible source of artifacts in samples in which strong concentration gradients of the free radical phase are present. Furthermore, an outlook is given on how PEDRI can help in observations of the local interplay among contaminants, water and nonaqueous liquid phases. (c) 2005 Elsevier Inc. All rights reserved.

Original languageEnglish
Pages (from-to)183-189
Number of pages7
JournalMagnetic Resonance Imaging
Volume23
Issue number2
DOIs
Publication statusPublished - Feb 2005

Keywords

  • MRI
  • PEDRI
  • groundwater
  • nonaqueous phase liquids (NAPL)
  • organic contaminants
  • MRI observation
  • porous-media
  • transport
  • matrix
  • imager

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