It was shown that size-segregated particles originating from industry-influenced or urban areas could be visualized (shades of gray or “pseudocolours” representing mass loading) and digitally analyzed by comparison with a commercially available air particulate SRM (NIST 2783). Actual results for industry-influenced and urban aerosol particles show distribution profiles that are similar to these obtained with a conventional wet-chemical leaching approach (with ICP-OES or ICP-MS analysis).
COBISS.SI-ID: 4031258
A new method is presented for the preparation, characterization and use of PbS (galena) nanoparticles within an in vitro bioaccessibility test representing the respiratory tract, specifically the conditions occurring in conjunction with phagocytosis by cells using artificial lysosomal fluid. Particle produced through nanosecond laser ablation were collected via liquid impingement in artificial lysosomal fluid and the undissolved material was separated via ultrafiltration after a contact time of 7–140 h.
COBISS.SI-ID: 4378650
The physical processes controlling the desorption of some elements (B, Cd, Co, Mn, Ni, and Sr) from soils in a continuous leaching system representing the human stomach were investigated by fitting experimental leaching data to a mathematical particle diffusion model incorporating two mass transfer processes (liquid film diffusion and apparent solid phase diffusion). It was shown that differences in leaching profiles could be explained by diffusion-limited processes, making the liability of elements in soil upon ingestion quantifiable.
COBISS.SI-ID: 4448538