Journal of Farming
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Reports on soil science findings from N. Nestle and co-researchers provide new insights
June 30th, 2008
According to a study from Ludwigshafen, Germany, "In this article, we explore the possibilities of studying transport phenomena that involve non-aqueous phase liquids (NAPL) by means of magnetic resonance imaging (MRI) with a paramagnetic contrast agent."
"We studied n-octanol as a model NAPL, especially in alcohol flooding in a water-saturated sediment, and flood-drainage-cycles in a temporally unsaturated sediment column. While the 'natural' relaxation time contrast between water and n-octanol often allows a distinction of the two liquids in a quartz-sand sediment, the use of Mn2+-ions dissolved in the water phase as a 'biphasic' contrast agent allows much better...
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Source: Journal of Farming (2008-06-30)