Results 31 to 40 of about 15,173 (194)
Bioavailability in soils [PDF]
The consumption of locally-produced vegetables by humans may be an important exposure pathway for soil contaminants in many urban settings and for agricultural land use.
A Göthberg +164 more
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No presente trabalho, foram comparados dois métodos de extração de cobre (Cu) e zinco (Zn) em solos com teor de matéria orgânica (MO) maior que 50g kg-1.
Evandro Luiz Schoninger +2 more
doaj +1 more source
Extraction capacity and the optimal order of extraction [PDF]
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +1 more source
Assessment of micronutrient extractants from soils of Paraná, Brazil
In Brazil, plant-available micronutrients in the soil can be determined by several chemical extractants, the most common of which are dilute acid and chelating solutions. The purpose of this study was to assess the extractants 0.1 mol L-1 HCl, Mehlich-1,
Marcos Vinicius Mansano Sarto +2 more
doaj +1 more source
Use of isotope dilution method to predict bioavailability of organic pollutants in historically contaminated sediments. [PDF]
Many cases of severe environmental contamination arise from historical episodes, where recalcitrant contaminants have resided in the environment for a prolonged time, leading to potentially decreased bioavailability.
Bao, Lian-Jun +4 more
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Azocalixarene. 5: p-Substituted Azocalix4arenes as Extractants for Dichromate Anions [PDF]
In this article, chromium(VI) extraction properties of two azocalix4arene based receptors (L4 and L6) are reported. A preliminary evaluation of the binding efficiencies of p-substituted azocalix4arene derivatives L4 and L6 was carried out by solvent ...
Hasalettin Deligöz +3 more
doaj
The contents of risk elements, arsenic speciation, and possible interactions of elements and betalains in beetroot (Beta vulgaris, L.) growing in contaminated soil [PDF]
The effect of enhanced soil risk element contents on the uptake of As, Cd, Pb, and Zn was determined in two pot experiments. Simultaneously, transformation of arsenic and its compounds in beetroot (Beta vulgaris L.) plants was investigated.
Goessler, Walter +4 more
core +1 more source
Chelating Extractants for Metals
In the present review, works on the classes of chelating extractants for metals, compounds with several amide and carboxyl groups, azomethines, oximes, macrocyclic compounds (crown ethers and calixarenes), phenanthroline derivatives, and others are ...
Pavel Yudaev, Evgeniy Chistyakov
doaj +1 more source
Third molars: To extract or not to extract? [PDF]
showed that general dentists recommend extraction of third molars in 59% of patients, mainly to prevent future problems or because a third molar had an unfavorable orientation or was unlikely to erupt. However, the power to predict third molar eruption is low, and impacted third molars that remain static, with no changes in position or angu -lation ...
openaire +4 more sources

