Résultats de la recherche - 58 results
Optimised dispersion protocol for particle size measurement of copper oxides applied as feed additives and plant protection products
de-agglomeration followed by on-grid sampling is evaluated. Health Topics: Food consumption and food safety Health and environment Consommation et sécurité alimentaires Voedselconsumptie en –veiligheid Santé et ...
Method development for analysis of nanoplastics in drinking water and milk using transmission electron microscopy (TEM)
risk assessment. This TEM-based approach was validated using polystyrene (PS) reference beads in the size range 60-500 nm, encompassing all analysis steps, from sample preparation to image analysis. Typically, the ...
Assessing particle count in electron microscopy measurements of nanomaterials to support regulatory guidance
Upon combining the precision uncertainty related to particle numberwith uncertainties from other sources, such as sample preparation, calibration and trueness, wereach an optimal particle count above ...
Variability in Alternaria alternata spore characteristics under different culture conditions: implications for automatic detection using air flow cytometry
media. While typical spores predominated, atypical forms were also identified, which may represent a potential bias for identification. Comparative analysis with air samples by the Hirst method also ...
Assessment of receptor-mediated activity (AhR and ERα), mutagenicity, and teratogenicity of metal shredder wastes in Wallonia, Belgium.
including fluff, dust, and scrubbing sludge were sampled in 2019 from two metal shredding facilities located in Wallonia, Belgium. To assess the extent of the contamination, a global approach combining ...
The International cookbook for wastewater practitioners- Vol. 1 SARS-CoV-2
guidance; high-level tactical wastewater catchment sampling strategies; wastewater sampling techniques; transport and storage of samples; laboratory analysis; normalisation and standardisation; data analysis ...
A validation methodology for size and shape measurement of nanoplastics by transmission electron microscopy
[3]. This validation encompasses all analysis steps, from sample preparation to image analysis, focusing on reference materials composed of polystyrene nanoplastics. By establishing the full measurement ...
Characterization of functional nanoparticles applied in face masks by STEM-EDX
embedded within the fibres, while in the other three cases it is at least partly present on the surface of fibres. The amount of silver-containting particles detected in each sample is too low to build ...
Estimating the Uncertainty in Airborne Birch Pollen Modelling
temperature of birch catkins. For each input dataset, 100 randomly sampled data layers were prepared for running SILAM 100 times. For the maps, in each 1° by 1° block containing 100 grid cells (0.1° x 0.1° ...
Modelling grass pollen load in temperate and Mediterranean European areas based on source spatial distribution
contribution of the most abundant grass species and grassland habitats to airborne grass pollen at a local spatial scale using in situ phenological samplings and remote sensing data. This background allowed us ...