Tandem configuration of differential mobility and centrifugal particle mass analysers for investigating aerosol hygroscopic properties

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Tandem configuration of differential mobility and centrifugal particle mass analysers for investigating aerosol hygroscopic properties. / Vlasenko, Sergey S.; Su, Hang; Pöschl, Ulrich; Andreae, Meinrat O.; Mikhailov, Eugene F.

In: Atmospheric Measurement Techniques, Vol. 10, No. 3, 30.03.2017, p. 1269-1280.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{baff8a63b1974b4ca09482c22ac66091,

title = "Tandem configuration of differential mobility and centrifugal particle mass analysers for investigating aerosol hygroscopic properties",

abstract = "A tandem arrangement of Differential Mobility Analyser and Humidified Centrifugal Particle Mass Analyser (DMA-HCPMA) was developed to measure the deliquescence and efflorescence thresholds and the water uptake of submicron particles over the relative humidity (RH) range from 10 to 95%. The hygroscopic growth curves obtained for ammonium sulfate and sodium chloride test aerosols are consistent with thermodynamic model predictions and literature data. The DMA-HCPMA system was applied to measure the hygroscopic properties of urban aerosol particles, and the kappa mass interaction model (KIM) was used to characterize and parameterize the concentration-dependent water uptake observed in the 50-95% RH range. For DMA-selected 160nm dry particles (modal mass of 3.5fg), we obtained a volume-based hygroscopicity parameter, Kv ≈ 0.2, which is consistent with literature data for freshly emitted urban aerosols. Overall, our results show that the DMA-HCPMA system can be used to measure size-resolved mass growth factors of atmospheric aerosol particles upon hydration and dehydration up to 95% RH. Direct measurements of particle mass avoid the typical complications associated with the commonly used mobility-diameter-based HTDMA technique (mainly due to poorly defined or unknown morphology and density).",

author = "Vlasenko, {Sergey S.} and Hang Su and Ulrich P{\"o}schl and Andreae, {Meinrat O.} and Mikhailov, {Eugene F.}",

year = "2017",

month = mar,

day = "30",

doi = "10.5194/amt-10-1269-2017",

language = "English",

volume = "10",

pages = "1269--1280",

journal = "Atmospheric Measurement Techniques",

issn = "1867-1381",

publisher = "Copernicus GmbH ",

number = "3",

}

RIS

TY - JOUR

T1 - Tandem configuration of differential mobility and centrifugal particle mass analysers for investigating aerosol hygroscopic properties

AU - Vlasenko, Sergey S.

AU - Su, Hang

AU - Pöschl, Ulrich

AU - Andreae, Meinrat O.

AU - Mikhailov, Eugene F.

PY - 2017/3/30

Y1 - 2017/3/30

N2 - A tandem arrangement of Differential Mobility Analyser and Humidified Centrifugal Particle Mass Analyser (DMA-HCPMA) was developed to measure the deliquescence and efflorescence thresholds and the water uptake of submicron particles over the relative humidity (RH) range from 10 to 95%. The hygroscopic growth curves obtained for ammonium sulfate and sodium chloride test aerosols are consistent with thermodynamic model predictions and literature data. The DMA-HCPMA system was applied to measure the hygroscopic properties of urban aerosol particles, and the kappa mass interaction model (KIM) was used to characterize and parameterize the concentration-dependent water uptake observed in the 50-95% RH range. For DMA-selected 160nm dry particles (modal mass of 3.5fg), we obtained a volume-based hygroscopicity parameter, Kv ≈ 0.2, which is consistent with literature data for freshly emitted urban aerosols. Overall, our results show that the DMA-HCPMA system can be used to measure size-resolved mass growth factors of atmospheric aerosol particles upon hydration and dehydration up to 95% RH. Direct measurements of particle mass avoid the typical complications associated with the commonly used mobility-diameter-based HTDMA technique (mainly due to poorly defined or unknown morphology and density).

AB - A tandem arrangement of Differential Mobility Analyser and Humidified Centrifugal Particle Mass Analyser (DMA-HCPMA) was developed to measure the deliquescence and efflorescence thresholds and the water uptake of submicron particles over the relative humidity (RH) range from 10 to 95%. The hygroscopic growth curves obtained for ammonium sulfate and sodium chloride test aerosols are consistent with thermodynamic model predictions and literature data. The DMA-HCPMA system was applied to measure the hygroscopic properties of urban aerosol particles, and the kappa mass interaction model (KIM) was used to characterize and parameterize the concentration-dependent water uptake observed in the 50-95% RH range. For DMA-selected 160nm dry particles (modal mass of 3.5fg), we obtained a volume-based hygroscopicity parameter, Kv ≈ 0.2, which is consistent with literature data for freshly emitted urban aerosols. Overall, our results show that the DMA-HCPMA system can be used to measure size-resolved mass growth factors of atmospheric aerosol particles upon hydration and dehydration up to 95% RH. Direct measurements of particle mass avoid the typical complications associated with the commonly used mobility-diameter-based HTDMA technique (mainly due to poorly defined or unknown morphology and density).

UR - http://www.scopus.com/inward/record.url?scp=85016752193&partnerID=8YFLogxK

U2 - 10.5194/amt-10-1269-2017

DO - 10.5194/amt-10-1269-2017

M3 - Article

AN - SCOPUS:85016752193

VL - 10

SP - 1269

EP - 1280

JO - Atmospheric Measurement Techniques

JF - Atmospheric Measurement Techniques

SN - 1867-1381

IS - 3

ER -

ID: 11456742