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

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.

journal_name

Magn Reson Imaging

authors

Nestle N,Shet K,Lurie DJ

doi

10.1016/j.mri.2004.11.027

subject

Has Abstract

pub_date

2005-02-01 00:00:00

pages

183-9

issue

2

eissn

0730-725X

issn

1873-5894

pii

S0730-725X(05)00031-7

journal_volume

23

pub_type

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