Chemical analysis of individual alkali-containing aerosol particles: Design and performance of a surface ionization particle beam mass spectrometer

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Fältnamn	Indikatorer	Metadata
000		03128naa a2200337 4500
001		oai:gup.ub.gu.se/56132
003		SwePub
008		240528s2004 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://gup.ub.gu.se/publication/561322 URI
024	7	a https://doi.org/10.1080/027868204904859442 DOI
040		a (SwePub)gu
041		a eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Svane, Maria,d 1957u Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry4 aut0 (Swepub:gu)xsvama
245	1 0	a Chemical analysis of individual alkali-containing aerosol particles: Design and performance of a surface ionization particle beam mass spectrometer
264	1	b Informa UK Limited,c 2004
520		a A mobile particle beam mass spectrometer has been developed to measure the alkali metal content in individual submicron aerosol particles. The instrument employs an aerodynamic inlet system for efficient sampling of particles into vacuum, and the detection of individual particles is based on decomposition and surface ionization on a hot platinum surface. A boxlike design of the hot ionizing surface is shown to limit problems associated with particle bounce effects and incomplete ionization, and the decomposition/ionization process is not sensitive to detailed particle properties. High transmission efficiencies and quantitative determination of the alkali metal content in individual particles with diameters down to 14 nm are demonstrated. Experiments with particles doped with alkali salt show that the size range may be extended down to a few nanometers after further improvements of the inlet system. High size resolution can be achieved with the instrument for particle sizes down to tens of nanometers, as illustrated by the detection of multiply charged particles passing through a DMA. The robustness of the instrument makes it suitable for field measurement applications, and the technique is demonstrated at a 12 MW biomass combustion facility. The performance of the instrument and further refinements of the technique are discussed, and potential applications in field and laboratory studies are outlined.
650	7	a NATURVETENSKAPx Kemix Fysikalisk kemi0 (SwePub)104022 hsv//swe
650	7	a NATURAL SCIENCESx Chemical Sciencesx Physical Chemistry0 (SwePub)104022 hsv//eng
653		a REAL-TIME MEASUREMENT
653		a SODIUM-CHLORIDE
653		a AIR
653		a NOZZLE
700	1	a Hagström, Magnus,d 1965u Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry4 aut0 (Swepub:gu)xhagsm
700	1	a Pettersson, Jan B. C.,d 1962u Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry4 aut0 (Swepub:gu)xpettj
710	2	a Göteborgs universitetb Institutionen för kemi4 org
773	0	t Aerosol Science and Technologyd : Informa UK Limitedg 38:7, s. 655-663q 38:7<655-663x 0278-6826x 1521-7388
856	4 8	u https://gup.ub.gu.se/publication/56132
856	4 8	u https://doi.org/10.1080/02786820490485944

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Av författaren/redakt...: Svane, Maria, 19 ...; Hagström, Magnus ...; Pettersson, Jan ...

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