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T1  - 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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UR  - http://hdl.handle.net/10138/309165 
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A1  - Attoui, Michel; Kangasluoma, Juha 
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Y1  - 2019 
LA  - eng 
AB  - 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... 
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KW  - 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 
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