Quantification of Low Pressure Impactor Wall Deposits during Zinc Nanoparticle Sampling

Autor:	Denis Bemer, Davy Rousset, Virginie Matera, Yves Morele, Thibaut Durand, Sébastien Bau
Rok vydání:	2014
Předmět:	Materials science Mass distribution Analytical chemistry chemistry.chemical_element Sampling (statistics) Mineralogy Nanoparticle Zinc Pollution Sampling device Aerosol chemistry Environmental Chemistry Aerodynamic diameter Thermal spraying
Zdroj:	Aerosol and Air Quality Research. 14:1812-1821
ISSN:	2071-1409 1680-8584
DOI:	10.4209/aaqr.2013.10.0304
Popis:	A Dekati low pressure impactor (DLPI) is used to determine the mass distribution of airbome particles from 7 nm to 10 urn as a function of aerodynamic diameter. Quantification of wall deposits inside this sampling device was performed for the first time using poly disperse zinc aerosol produced by a thermal spraying process. This aerosol is more representative of the size distribution found in occupational atmospheres than aerosols usually produced in laboratories. Each experiment (3 replicates) was carried out for two durations. The results showed that wall deposits were quite considerable and in relation with aerosol modes. 13% and 14% of the total mass was found on the wall after sampling periods of 5 and 20 minutes, respectively. Relative losses could reach 50% for certain impaction stages and these losses were also quite different between replicates.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b33946b3b3cc3e744c7fba578f0bf612 https://doi.org/10.4209/aaqr.2013.10.0304 Zobrazit plný text záznamu