34 research outputs found

    Recent Developments in the Field of Environmental Reference Materials at the Environment Institute Ispra.

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    Abstract not availableJRC.(EI)-Environment Institut

    Antimonio, Selenio, Cobalto e Bario : Il Lago Maggiore, Trent'anni di Storia attraverso l'Analisi dei Sedimenti Superficiali

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    Sediments represent a primary importance because they are the memory of a catchment basin. The two areas investigated for evaluating spatial-temporal distribution of concentrations of four micropollutants: Pallanza Bay (8.4 km2) and the south of the Lake Maggiore (4.2 km2). The first area has suffered and still does from industrial contamination of Cu, Cr and Hg; the second area investigated represents the terminal peace of the south end Lake, the sediments describe the results of the total catchment basins. The work represents 21 sediment cors 16 cm depd, and divided in 4 cm. The age of samples has been investigated by analyzing 137 Cs, and the period of time showed is approximately 30 years, while the concentration of Ba, Sb, Se and Co has been determined by Neutron Activation Analysis.JRC.(EI)-Environment Institut

    The Certification of the Mass Fraction of As, Cd, Cr, Cu, Hg, Mn, Pb, Se and Zn in Mussel Tissue (mytilus edulis) CRM 278R

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    Abstract not availableJRC.D-Institute for Reference Materials and Measurements (Geel

    PHARE Hands-on Course: Environmenal Laboratory Reference Material Production

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    Abstract not availableJRC.(EI)-Environment Institut

    Uncertainty in Analytical Results from Solid Materials with Electrothermal Atomic Absorption Spectrometry. A Comparison of Methods.

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    The combined uncertainty in the analytical results of solid materials for two methods (ET-AAS, analysis after prior sample digestion and direct soil sampling) are derived by applying the Guide to the Expression of Uncertainty in Measurement from the International Standards Organization. For the analysis of solid materials, generally three uncertainty components must be considered: those in the calibration, those in the unknown sample measurement and those in the analytical quality control (AQC) process. For both methods, the uncertainty in the certified content of the CRM, which is used for AQC must be considered. The estimation of the uncertainty components is shown to be a suitable tool for the experimental design in order to obtain a small uncertainty in the analytical result.JRC.(EI)-Environment Institut

    Application of the European Reference Soil Set (EUROSOILS) to aHPLC-Screening Method for the Estimation of Soil Adsorption Coefficients of Non-Ionic Organic Compounds.

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    During the last decade the increasing concern on the impact of commercial substances that come into contact with man and nature had led to numerous guidelines aiming on the determination of parameters that may be used for the environmental risk assessment of those compounds.One of these parameters is the soil adsorption coefficient, which is of paramount importance for the fate of environmental chemicals in the soil compartment. As it is impossible to measure thois coefficient for all existing substances siutable screening methods which give reproducible and traceable data for its accurate estimation are urgently needed.JRC.(EI)-Environment Institut

    Freshwater Contamination in China. Current Topics of Research.

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    Abstract not availableJRC.(EI)-Environment Institut
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