A Multi-Cyclone Sampling Array for the Collection of Size-Segregated Occupational Aerosols.
In this study a serial multi-cyclone sampling array capable of simultaneously sampling particles of multiple size fractions, from an occupational environment, for use in in vivo and in vitro toxicity studies and physical/chemical characterization, was developed and tested. This method is an improvem...
| Publicado en: | Journal of Occupational & Environmental Hygiene Vol. 10; no. 12; pp. 685 - 694 |
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| Autores principales: | , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Dec2013
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104154378&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104154378 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 15459624 V1L jtl: Journal of Occupational & Environmental Hygiene issn: 15459624 maglogo: Y pubinfo: dt: Dec2013 vid: 10 iid: 12 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 104154378 91858726 10.1080/15459624.2013.818244 NLM24195535 104154378 ppf: 685 ppct: 9 formats: fmt: @attributes: type: P tig: atl: A Multi-Cyclone Sampling Array for the Collection of Size-Segregated Occupational Aerosols. aug: au: Mischler, Steven E. Cauda, Emanuele G. Di Giuseppe, Michelangelo Ortiz, Luis A. affil: National Institute for Occupational Safety and Health, Office of Mine Safety and Health Research, Pittsburgh, Pennsylvania sug: subj: Particle Size Sample Size Aerosols Air Pollutants, Occupational Analysis Human Pennsylvania Funding Source In Vivo Studies In Vitro Studies Silicates Quality Control (Technology) Software Aerodynamics ab: In this study a serial multi-cyclone sampling array capable of simultaneously sampling particles of multiple size fractions, from an occupational environment, for use in in vivo and in vitro toxicity studies and physical/chemical characterization, was developed and tested. This method is an improvement over current methods used to size-segregate occupational aerosols for characterization, due to its simplicity and its ability to collect sufficient masses of nano- and ultrafine sized particles for analysis. This method was evaluated in a chamber providing a uniform atmosphere of dust concentrations using crystalline silica particles. The multi-cyclone sampling array was used to segregate crystalline silica particles into four size fractions, from a chamber concentration of 10 mg/m3. The size distributions of the particles collected at each stage were confirmed, in the air, before and after each cyclone stage. Once collected, the particle size distribution of each size fraction was measured using light scattering techniques to further confirm the size distributions. As a final confirmation, scanning electron microscopy was used to collect images of each size fraction. The results presented here, using multiple measurement techniques, show that this multi-cyclone system was able to successfully collect distinct size-segregated particles at sufficient masses to perform toxicological evaluations and physical/chemical characterization. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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