An improved continuous-flow condensation nucleus counter for use in the stratosphere

Wilson, J. C.; Blackshear, Edmund; Cha, Jong Hyun

doi:10.1016/0021-8502(83)90143-x

Cited by 18 publications

(6 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A number of refinements in the design of continuous flow CPCs have been reported since than (e.g., Wilson et al [44], Stolzenburg and McMurry [45]). …”

Section: Condensation Particle Counter For Particle Number Concentratmentioning

confidence: 99%

Recent developments in aerosol measurement techniques and the metrological issues

Aggarwal

2010

MAPAN

View full text Add to dashboard Cite

A small error in the aerosol measurements can lead to a considerable influence on our understanding towards its impact on climate. To better simulate aerosol effects on the earth's radiation budget, the chemical and physical characterizations of aerosol particles with accurate measurements have been a key interest in the aerosol research for last several decades. Recent advances in the chemical characterization of aerosols at bulk and molecular levels, and their physical characterization, such as size distribution, hygroscopicity, and cloud condensation nuclei (CCN) activity have improved our knowledge to better understand the aerosol sources, concentration distributions, atmospheric processing and their potential climate impacts. Apart from the complexity of atmospheric aerosols, because of the limited availability of aerosol certified reference materials, traceability data and measurement protocols, it is still a challenging task to measure the aerosol properties with reduced uncertainty. The recent developments on aerosol analytical techniques (on-line and off-line), which include gas chromatography/ flame ionization detector (GC/FID) /mass spectrometry (MS)/ isotope ratio mass spectrometry (irMS), ion chromatography (IC), organic carbon/elemental carbon (OC/EC) and water-soluble organic carbon (WSOC) analyzers, and physical measurements using scanning mobility particle sizer (SMPS), hygroscopicity tandem differential mobility analyzer (HTDMA) and cloud condensation nuclei-counter (CCN-C) are discussed with the metrological issues in the measurements. The importance of aerosol metrology is highlighted giving the data obtained from the laboratory studies and aerosol field campaigns.

show abstract

“…A number of refinements in the design of continuous flow CPCs have been reported since than (e.g., Wilson et al [44], Stolzenburg and McMurry [45]). …”

Section: Condensation Particle Counter For Particle Number Concentratmentioning

confidence: 99%

Recent developments in aerosol measurement techniques and the metrological issues

Aggarwal

2010

MAPAN

View full text Add to dashboard Cite

show abstract

“…J.C. Wilson and coworkers [6,7] described and built an instrument (based on the TSI 3020 model) to operate in aircrafts to study stratospheric aerosols (40-400 mbar). The design priorities of the instrument included fast response time and the ability to count accurately concentrations of ultrafine particle at low pressures.…”

Section: Introductionmentioning

confidence: 99%

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

Attoui

Kangasluoma

2019

Atmosphere

View full text Add to dashboard Cite

Tetraheptylammonium bromide (THABr), tetrabutylammonium bromide (TBABr) and tetraethylammonium bromide (TEABr) dissolved in methanol or water methanol mixtures (~ 1mM) produce via positive electrospray atomization and high resolution classification electrical classification standard clean ions (monomer and dimer) 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.

show abstract

“…Compared to the previous CPC designs, the significant improvements in the instrument included minimized diffusion losses in the sampling line and a sheath flow in the condenser to focus the particle beam to the maximum butanol supersaturation region in the middle of the condenser (Wilson et al, 1983). This instrument is the predecessor of the ultrafine CPC 3025A and 3776 (TSI Inc., Shoreview, USA), which are currently widely used in various fields of aerosol science to study particle dynamics at particle sizes larger than 3 nm (e.g.…”

Section: Introductionmentioning

confidence: 99%

Characterization of three new condensation particle counters for sub-3 nm particle detection during the Helsinki CPC workshop: the ADI versatile water CPC, TSI 3777 nano enhancer and boosted TSI 3010

et al. 2017

View full text Add to dashboard Cite

Abstract. In this study we characterized the performance of three new particle counters able to detect particles smaller than 3 nm during the Helsinki condensation particle counter (CPC) workshop in summer 2016: the Aerosol Dynamics Inc. (ADI; Berkeley, USA) versatile water condensation particle counter (vWCPC), TSI 3777 nano enhancer (TSI Inc., Shoreview, USA) and modified and boosted TSI 3010-type CPC from Université Blaise Pascal called a B3010. The performance of all CPCs was first measured with charged tungsten oxide test particles at temperature settings which resulted in supersaturation low enough to not detect any ions produced by a radioactive source. Due to similar measured detection efficiencies, additional comparison between the 3777 and vWCPC were conducted using electrically neutral tungsten oxide test particles and with positively charged tetradodecylammonium bromide. Furthermore, the detection efficiencies of the 3777 and vWCPC were measured with boosted temperature settings yielding supersaturation which was at the onset of homogeneous nucleation for the 3777 or confined within the range of liquid water for the ADI vWCPC. Finally, CPC-specific tests were conducted to probe the response of the 3777 to various inlet flow relative humidities, of the B3010 to various inlet flow rates and of the vWCPC to various particle concentrations. For the 3777 and vWCPC the measured 50 % detection diameters (d50s) were in the range of 1.3-2.4 nm for the tungsten oxide particles, depending on the particle charging state and CPC temperature settings, between 2.5 and 3.3 nm for the organic test aerosol, and in the range of 3.2-3.4 nm for tungsten oxide for the B3010.

show abstract

An improved continuous-flow condensation nucleus counter for use in the stratosphere

Cited by 18 publications

References 0 publications

Recent developments in aerosol measurement techniques and the metrological issues

Recent developments in aerosol measurement techniques and the metrological issues

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

Characterization of three new condensation particle counters for sub-3 nm particle detection during the Helsinki CPC workshop: the ADI versatile water CPC, TSI 3777 nano enhancer and boosted TSI 3010

Contact Info

Product

Resources

About

An improved continuous-flow condensation nucleus counter for use in the stratosphere

Cited by 18 publications

References 0 publications

Recent developments in aerosol measurement techniques and the metrological issues

Recent developments in aerosol measurement techniques and the metrological issues

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

Characterization of three new condensation particle counters for sub-3 nm particle detection during the Helsinki CPC workshop: the ADI versatile water CPC, TSI 3777 nano enhancer and boosted TSI 3010

Contact Info

Product

Resources

About

Characterization of three new condensation particle counters for sub-3 nm particle detection during the Helsinki CPC workshop: the ADI versatile water CPC, TSI 3777 nano enhancer and boosted TSI 3010