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Résultats de la recherche - 44 results
Method development for analysis of nanoplastics in drinking water and milk using transmission electron microscopy (TEM)
addresses this by developing advanced methodologies for characterizing and measuring NP in food matrices, using transmission electron microscopy (TEM) to assess size and shape — critical parameters for ...
Assessing particle count in electron microscopy measurements of nanomaterials to support regulatory guidance
electron microscopy nanomaterial Particle count Particle shape Particle Size Precision Regulatory guidance uncertainty Abstract: In the European Union, nanomaterials are regulated through different pieces of ...
Particle size analysis of iron hydroxide adipate tartrate (IHAT) in a food supplement: Interlaboratory testing of a dynamic light scattering method
constituent particle size, referred to in the implementing regulation as ‘primary particle size’. In this study, a method to determine the constituent particle size distribution of IHAT using the volume-based ...
Physicochemical characterization and genotoxicity assessment of nanomaterials using new approach methodologies
additive [3]. A detailed physicochemical characterization of the test materials is an essential first step in the risk assessment. It includes measuring the particle size distribution, surface charge, ...
A validation methodology for size and shape measurement of nanoplastics by transmission electron microscopy
distribution of particles on the grid was achieved for all materials. Material 3060A is polydisperse with particle sizes ranging from 10 nm to 70 nm. Materials 3200A and 3500A are more uniform in size, however, ...
Characterization of functional nanoparticles applied in face masks by STEM-EDX
face masks. The method is evaluated in terms of ability to distinguish different nanoforms, to measure particle properties (size/shape/agglomeration state) important in the context of risk assessment in ...
The use of nitrous oxide whippets as a recreational drug: Hidden health risks.
lead were found. STEM- EDX analysis confirmed the presence of nano-sized particles containing iron and zinc. When simulating inhalation, using the multiple path particle dosimetry model, it was confirmed ...
Identification and characterization of inorganic food additives and pearlescent pigments in sprays for food decoration by STEM-EDX
mixtures, characterisation of the fraction of small particles, including the particle size distribution, is needed for each single constituent or each component in the mixture2. This is challenging for ...
Identification and characterization of TiO2 nanoparticles in face masks by TEM
1866, Mountain View, CA 94042, p.17 (2022) Keywords: Agglomerates electron microscopy energy dispersive X-ray spectroscopy Face mask image analysis Nanoparticles particle size distribution STEMEDX TEM ...
Towards a generic protocol for measuring the constituent particle size distribution of E171 in food by electron microscopy
Publication Type: Peer reviewed scientific article Authors: Eveline Verleysen; Frederic Brassinne; Frederic Van Steen; Nadia Waegeneers; Karlien Cheyns; Ronny Machiels; Stella Mathioudaki; Isaac Ojea Jimenez; Ledecq, Marina; Jan Mast Source: Food Control, ...