tracer element


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tracer element

[′trā·sər ‚el·ə·mənt]
(chemistry)
References in periodicals archive ?
First, the BTM ranks tracer elements according to their food-to-soil (F/S) ratios, defined as the mass of the tracer element ingested from food over a 1-d period divided by the mass of the tracer element in 1 g of soil.
In short, SIR data based on each tracer element were characterized by a skewed distribution, high variation, and some outliers.
MAST), has unveiled that a second, American based, oil company has awarded MAST a USD $4,000,000 contract to evaluate our nanoparticles as a potential tracer element in their secondary oil recovery operations.
If a tracer element moved past the flow front, the element was moved closer to the wall and its axial position was set to be just behind the flow front.
In other words, a new set of tracer elements was inserted every time the melt front advanced by 2% of the nodes in the axial direction.
Patients undergoing PET scans are injected with the tracer element, which is then taken up by the body tissues.
Sulfur (S) was the major tracer element for regional sulfur factor.
Although Norwalk is coastal, the sea salt factor was not identified, possibly because a tracer element (Na) did not meet the inclusion criteria for this site.
At Lascogon, there is a 360 metre by 80 metre near surface exposure of sedimentary rock-hosted jasperoids within a wider 600 metre by 300 metre area that is geochemically anomalous for gold and its tracer elements.
From April 1997 through March 1998, samples of inhalable particles were collected, separated into fine and coarse particulate mode, and analyzed for black carbon and tracer elements.
To confirm the univariate analyses, we fit a multivariate model to each response, using multiple tracer elements of previously defined pollution sources (Clarke et al.