Zoekresultaten - 9 results

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 ...

Physicochemical Characterization of the Pristine E171 Food Additive by Standardized and Validated Methods.

spectrometry (spICP- MS). The evaluation of selected sample preparation protocols allowed identifying and optimizing the critical factors that determine the measurement of the particle size distribution by TEM. ...

Is aggregated synthetic amorphous silica toxicologically relevant?

size distributions. Their effect on cell metabolic activity, cell viability, epithelial barrier integrity, total glutathione content and, IL-8 and IL-6 secretion were investigated after 24 h exposure in ...

A systematic evaluation of Flow Field Flow Fractionation and single-particle ICP-MS to obtain the size distribution of organo-mineral iron oxyhydroxide colloids.

Field Flow Fractionation iron oxyhydroxide colloids particle size distribution Single particle ICP-MS Abstract: Colloidal iron(III) oxyhydroxides (FeOx) are important reactive adsorbents in nature. This ...

Evaluation of a TEM based Approach for Size Measurement of Particulate (Nano)materials.

properties, including particle size, shape, and agglomeration state. The measurement of the median value of the minimal external particle diameter distribution was intra-laboratory validated. The validation ...

Evaluation of a TEM based Approach for Size Measurement of Particulate (Nano)materials

preparation, imaging, and image analysis, and it was evaluated on a series of certified reference materials and representative test materials with varying physical properties, including particle size, shape, and ...

Physical Characterization of Nanomaterials in Dispersion by Transmission Electron Microscopy in a Regulatory Framework

specimens to obtain a representative distribution of particles on the grid is discussed. The application of TEM imaging methods, electron diffraction and analytical TEM to obtain complementary information on ...

Examples related to the assessment of solubility/dissolution and particle size distribution

Publication Type: Scientific poster, presentation or proceeding Authors: Francisco Cubada; Jan Mast; Hubert Rauscher; Stefan Weigel Source: (0) Health Topics:  Nanomaterialen Nanomatériaux Nanomaterials Heavy metals Métaux lourds Service:  Éléments traces ...

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