Zoekresultaten - 153 results
Method development for analysis of nanoplastics in drinking water and milk using transmission electron microscopy (TEM)
energy-dispersive X-ray spectroscopy (STEM- EDX) allowed differentiating plastic particles from mineral contaminants on the grid by their elemental composition. The limit of detection, determined by the sample ...
Chromatographic fingerprint development for the detection of tobacco varieties in commercial tobacco products
Products Abstract: Background: Manufacturers of tobacco products in Belgium are legally required to register the exact composition of their products. In the context of this bachelor’s thesis, ...
The impact of ecosystem nitrogen enrichment on pollen allergy: a cross-sectional paired comparison study
following a standardised protocol. We analysed grassland pollen abundance, quantified pollen species composition via DNA sequencing, and assessed pollen allergenicity using basophil activation testing and ...
Ketamine, a new (or old) kid on the block: A comprehensive three-year spatio-temporal study in Belgium through wastewater-based epidemiology
spatio-temporal trends. Daily 24-h composite IWW samples were collected from 26 locations across the northern part of Belgium (Flanders and Brussels region), every Monday and Wednesday in 2023 (n = 716). Additionally, ...
Particle size analysis of iron hydroxide adipate tartrate (IHAT) in a food supplement: Interlaboratory testing of a dynamic light scattering method
Givelet, Lucas; Cubadda, Francesco; Raggi, Andrea; Ferraris, Francesca; Gräf, Volker; Mantovan, Etienne Devy; Zanella, Michela; Benetti, Federico; Barrero-Moreno, Josefa Source: Journal of Food Composition ...
Physicochemical characterization and genotoxicity assessment of nanomaterials using new approach methodologies
specific surface area, shape, solubility and dissolution rate, agglomeration state, chemical composition and crystal structure. Data obtained by electron microscopy based methods on the physicochemical ...
Chemical Characterization of Feminine Intimate Products an Extractables & Leachables Investigation
highest levels of leaching metal(loid)s, with Nickel, Antimony, and Mercury reaching levels of 1850, 0.3, and 0.6 ppb, respectively.This study provides new insights into the chemical composition of FIP s, ...
FT-IR spectroscopy as a rapid method for Salmonella spp. typing
reflects the carbohydrate composition of the outer membrane (1200 to 900 cm-1). Three biological replicates were tested for each single isolate, each of these was analyzed three times. Cluster analysis was ...
Variability in Alternaria alternata spore characteristics under different culture conditions: implications for automatic detection using air flow cytometry
microscopically, and chemical analysis was conducted using micro-Raman spectroscopy to assess spore composition. Significant differences were observed in colony morphology and spore characteristics among culture ...
Safety assessment of the substances 'wax, rice bran, oxidised' and 'wax, rice bran, oxidised, calcium salt' for use in food contact materials.
fraction. The contact with dry food and food simulated by 20% ethanol were considered covered by the migration tests with aqueous simulants. Based on genotoxicity assays and compositional analyses, the ...