Результаты исследований: Научные публикации в периодических изданиях › статья
Filter-Based Differential Hygroscopicity Analyzer of Aerosol Particles. / Mikhailov, E. F.; Merkulov, V. V.; Vlasenko, S. S.; Ryshkevich, T. I.; Pöschl, U. J.
в: IZVESTIYA. ATMOSPHERIC AND OCEANIC PHYSICS, Том 47, № 6, 2011, стр. 747-759.Результаты исследований: Научные публикации в периодических изданиях › статья
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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