Activation of sub 2 nm Water Soluble and Insoluble Standard Ions with Saturated Vapors of Butanol in a Boosted TSI ultrafine CPC

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Attoui , M & Kangasluoma , J 2019 , ' Activation of sub 2 nm Water Soluble and Insoluble Standard Ions with Saturated Vapors of Butanol in a Boosted TSI ultrafine CPC ' , Atmosphere - Ocean , vol. 10 , no. 11 , 665 . https://doi.org/10.3390/atmos10110665

Title: Activation of sub 2 nm Water Soluble and Insoluble Standard Ions with Saturated Vapors of Butanol in a Boosted TSI ultrafine CPC
Author: Attoui, Michel; Kangasluoma, Juha
Contributor organization: INAR Physics
Department of Physics
Date: 2019-11
Language: eng
Number of pages: 12
Belongs to series: Atmosphere - Ocean
ISSN: 0705-5900
DOI: https://doi.org/10.3390/atmos10110665
URI: http://hdl.handle.net/10138/309165
Abstract: Tetraheptylammonium bromide (THABr), tetrabutylammonium bromide (TBABr) and tetraethylammonium bromide (TEABr) dissolved in methanol or water methanol mixtures (similar to 1 mM) produce via positive electrospray atomization and high resolution classification electrical classification standard clean ions (monomer and dier) which are singly charged. THABr is hydrophobic and insoluble in water, TBABr and TEABr are hygroscopic and water soluble (0.6 and 2.8 kg/L respectively). These ions are used to study the effect of hygroscopicity on the activation of aerosol particles in the sub 2 nm range via the detection efficiency measurement of a boosted ultrafine TSI condensation particle counter (3025A). Water solubility of particles seems to play a role in the activation and growth with butanol vapor in the CPC (condensation particle counter) independently of the size.
Subject: PC
DMA
water soluble
sub 2 nm particles
nucleation
activation
growth
butanol
DIFFERENTIAL MOBILITY ANALYZERS
CONDENSATION NUCLEI COUNTERS
PARTICLE-SIZE MAGNIFIER
HETEROGENEOUS NUCLEATION
SUBMICROMETER AEROSOLS
COUNTING EFFICIENCY
CONTINUOUS-FLOW
HIGH-RESOLUTION
DETECTION LIMIT
LAMINAR-FLOW
114 Physical sciences
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


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