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Titolo:
NOVEL METHOD TO CLASSIFY AEROSOL-PARTICLES ACCORDING TO THEIR MASS-TO-CHARGE RATIO - AEROSOL-PARTICLE MASS ANALYZER
Autore:
EHARA K; HAGWOOD C; COAKLEY KJ;
Indirizzi:
NATL RES LAB METROL,1-1-4 UMEZONO TSUKUBA IBARAKI 305 JAPAN NIST GAITHERSBURG MD 20899 NIST BOULDER CO 80303
Titolo Testata:
Journal of aerosol science
fascicolo: 2, volume: 27, anno: 1996,
pagine: 217 - 234
SICI:
0021-8502(1996)27:2<217:NMTCAA>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
23
Recensione:
Indirizzi per estratti:
Citazione:
K. Ehara et al., "NOVEL METHOD TO CLASSIFY AEROSOL-PARTICLES ACCORDING TO THEIR MASS-TO-CHARGE RATIO - AEROSOL-PARTICLE MASS ANALYZER", Journal of aerosol science, 27(2), 1996, pp. 217-234

Abstract

A new method to classify aerosol particles according to their mass-to-charge ratio is proposed. This method works by balancing the electrostatic and centrifugal forces which act on particles introduced into a thin annular space formed between rotating cylindrical electrodes. Particles having a mass-to-charge ratio lying in a certain narrow range are taken out continuously as an aerosol suspension. A theoretical framework has been developed to calculate the transfer function which is defined as the ratio of the exiting particle dux to the entering particle flux. A similarity rule has been derived which states that a singlenondimensional constant determines the shape of the transfer function. To examine the feasibility of the proposed principle, a prototype classifier was constructed, and the mass distribution of monodisperse particles nominally 0.309 mu m in diameter was measured. The peak structures corresponding to singly, doubly,and triply charged particles wereidentified in the experimental spectra. The difference between theoryand experiment in the peak location for the singly charged particles was about 6.5% in terms of mass, or 2.3% in terms of diameter.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 12:43:10