Filter-Based Differential Hygroscopicity Analyzer of Aerosol Particles

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Filter-Based Differential Hygroscopicity Analyzer of Aerosol Particles. / Mikhailov, E. F.; Merkulov, V. V.; Vlasenko, S. S.; Ryshkevich, T. I.; Pöschl, U. J.

In: IZVESTIYA. ATMOSPHERIC AND OCEANIC PHYSICS, Vol. 47, No. 6, 2011, p. 747-759.

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Author

Mikhailov, E. F. ; Merkulov, V. V. ; Vlasenko, S. S. ; Ryshkevich, T. I. ; Pöschl, U. J. / Filter-Based Differential Hygroscopicity Analyzer of Aerosol Particles. In: IZVESTIYA. ATMOSPHERIC AND OCEANIC PHYSICS. 2011 ; Vol. 47, No. 6. pp. 747-759.

BibTeX

@article{6cacc97642de4429868ff07144fc3d47,

title = "Filter-Based Differential Hygroscopicity Analyzer of Aerosol Particles",

abstract = "We describe a new differential analyzer implementing a technique for studying the hygroscopic properties of filter-precipitated aerosol particles based on a katharometric measurement of the amount of water vapor absorbed by an aerosol sample. The instrument has been tested on particles of sodium chloride and ammonium sulphate. A comparison of our data with the results of analogous measurements described in liter- ature shows that the suggested technique has several important advantages, i.e., (1) higher sensitivity, which allows the measurement of particles of no more than 0.1 mg in mass; (2) a wide range of relative humidity vari- ations (up to 99% at an accuracy of 0.06% RH at the upper-range value); (3) the absence of intermediate mea- surement steps connected with the need to account for water absorption by elements of a measurement system; and (4) the absence of restrictions to the size and shape of particles studied. In addition, the measurement tech- nique rules out the possibility of errors caused by",

keywords = "atmospheric aerosol, hydroscopic growth, critical supersaturation",

author = "Mikhailov, {E. F.} and Merkulov, {V. V.} and Vlasenko, {S. S.} and Ryshkevich, {T. I.} and P{\"o}schl, {U. J.}",

year = "2011",

doi = "10.1134/S0001433811060107",

language = "English",

volume = "47",

pages = "747--759",

journal = "Izvestiya - Atmospheric and Oceanic Physics",

issn = "0001-4338",

publisher = "МАИК {"}Наука/Интерпериодика{"}",

number = "6",

}

RIS

TY - JOUR

T1 - Filter-Based Differential Hygroscopicity Analyzer of Aerosol Particles

AU - Mikhailov, E. F.

AU - Merkulov, V. V.

AU - Vlasenko, S. S.

AU - Ryshkevich, T. I.

AU - Pöschl, U. J.

PY - 2011

Y1 - 2011

N2 - We describe a new differential analyzer implementing a technique for studying the hygroscopic properties of filter-precipitated aerosol particles based on a katharometric measurement of the amount of water vapor absorbed by an aerosol sample. The instrument has been tested on particles of sodium chloride and ammonium sulphate. A comparison of our data with the results of analogous measurements described in liter- ature shows that the suggested technique has several important advantages, i.e., (1) higher sensitivity, which allows the measurement of particles of no more than 0.1 mg in mass; (2) a wide range of relative humidity vari- ations (up to 99% at an accuracy of 0.06% RH at the upper-range value); (3) the absence of intermediate mea- surement steps connected with the need to account for water absorption by elements of a measurement system; and (4) the absence of restrictions to the size and shape of particles studied. In addition, the measurement tech- nique rules out the possibility of errors caused by

AB - We describe a new differential analyzer implementing a technique for studying the hygroscopic properties of filter-precipitated aerosol particles based on a katharometric measurement of the amount of water vapor absorbed by an aerosol sample. The instrument has been tested on particles of sodium chloride and ammonium sulphate. A comparison of our data with the results of analogous measurements described in liter- ature shows that the suggested technique has several important advantages, i.e., (1) higher sensitivity, which allows the measurement of particles of no more than 0.1 mg in mass; (2) a wide range of relative humidity vari- ations (up to 99% at an accuracy of 0.06% RH at the upper-range value); (3) the absence of intermediate mea- surement steps connected with the need to account for water absorption by elements of a measurement system; and (4) the absence of restrictions to the size and shape of particles studied. In addition, the measurement tech- nique rules out the possibility of errors caused by

KW - atmospheric aerosol

KW - hydroscopic growth

KW - critical supersaturation

U2 - 10.1134/S0001433811060107

DO - 10.1134/S0001433811060107

M3 - Article

VL - 47

SP - 747

EP - 759

JO - Izvestiya - Atmospheric and Oceanic Physics

JF - Izvestiya - Atmospheric and Oceanic Physics

SN - 0001-4338

IS - 6

ER -

ID: 5350635