Model 3340 Laser Aerosol Spectrometer Bibliography - Tsi

Sexton 1 , Ken; Webber 1 , Lurance M.; Hayward 1 , Steven B.; Sextro 2 , Richard G. “Characterization of
Particle Composition, Organic Vapor Constituents, and Mutagenicity of Indoor Air Pollutant Emissions,”
Environment International, Indoor Air Quality, 12:1–4, (1986) 351–362.
1 Indoor Air Quality Program, California Department of Health Services, 2151 Berkeley Way,
Berkeley, California 94704, USA. 2 Building Ventilation and Indoor Air Quality Program, Lawrence
Berkeley Laboratory, Berkeley, California 94720, USA.
Abstract: A joint chamber experiment was carried out by the California Indoor Air Quality Program
and Lawrence Berkeley Laboratory to characterize particle and organic vapor emissions from several
important indoor sources, including a gas range, tobacco smoking, hamburger frying, a kerosene
heater, and selected aerosol spray products. Among the emissions data collected for each source were
particle size distributions, particle-phase chemical compositions, volatile organic compounds, and
mutagenicity of particles and vapor-phase constituents. Findings were used to assess qualitatively the
nature of airborne emissions from each source and to compare emission constituents among source
categories. This approach is a necessary first step in evaluating the feasibility of developing unique
signatures for individual sources using a broad array of emission characteristics.
Wen, H.Y.; Kasper, G. “Counting Efficiencies of Six Commercial Particle Counters,” Journal of Aerosol
Science, 17:6, (1986) 947–961.
Abstract: Counting efficiencies of a condensation nuclei counter (TSI 3020), a white-light optical
particle counter (Climet CI-8060) and four laser instruments (PMS LAS-X, LAS-250X, LPC 525 and
HP-LAS) were determined relative to the LAS-X.
Measurements were made in the geometric diameter range of 0.1 to 4 μm using latex spheres as well
as monodisperse organic and inorganic particles produced by a vibrating orifice generator.
The high-pressure in-line counter (HP-LAS) shows a nonlinear response to gas velocity which can be
taken into account by a calibration. The lower detection limits (50% points) of the conventional laser
counters (LAS-X and LAS-250X) agree within 0.05 μm with their nominal specifications; for the
white-light counter (CI-8060) the actual lower limit is at about 0.4 μm. For all counters, the degree of
inlet losses for larger particles varies greatly with inlet design and flow velocity of each counter.
Yamada, Yuji; Miyamoto, Katsuhiro; Koizumi, Akira. “Size Measurements of Latex Particles by Laser
Aerosol Spectrometer,” Aerosol Science and Technology, 1521-7388, 5:3, (1986) 377–384.
Abstract: Size measurements of PSL (polystyrene latex) particles in a size range from 0.109 to
0.330 μm were made by laser aerosol spectrometer (PMS, LAS-X). The results were compared with
those by electron microscopy. For example, the geometric standard deviation, σg, of nominally
0.176 μm PSL particles was measured as 1.05, assuming that their sizes distribute log-normally. The
value of 1.05 was very close to 1.02 measured by electron microscopy. It was found that the
spectrometer had very high size resolution, although the size resolution of the light scattering type
spectrometer has been said to be poor. For some samples of PSL particles, however, there were large
differences between particle sizes measured by LAS-X and those by electron microscopy. It was also
found that LAS-X had a problem in calibration of size response curve.
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