PIXE, PIGE and ion chromatography of aerosol particles from northeast Amazon Basin
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1998
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Nuclear Instruments & Methods in Physics Research Section B - Beam Interactions with Materials and Atoms
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Resumo
Characterization of atmospheric aerosols collected in the northeast part of the Amazon Basin is presented. The main
aerosol source in that region is the forest natural biogenic emission. The aerosol samples were collected using stacked
filter units, and were analyzed applying several analytical techniques: Particle Induced X-ray Emission (PIXE) for the
quantitative analysis of trace elements with 2 > 1 I; Particle Induced Gamma-ray Emission (PIGE) for the quantitative
analysis of Na; Ion Chromatography (IC) was used to quantify ionic contents of aerosols from the fine mode particulate
samples. A reflectance technique was used in order to measure black carbon concentrations; Gravimetric analysis was
used in order to determine the total atmospheric aerosol mass concentration. The comparison from PIXE and IC concentration
measurements for S. K and Ca techniques were in an excellent agreement. A good agreement was also obtained
for Na concentrations measured by PIGE and IC techniques. Multivariate statistical analysis was used in order
to identify and characterize the sources of the atmospheric aerosol present in the sampled region. The Serra do Navio
aerosol is characterized by biogenic emissions. responsible for the majority of the total fine mass concentration. A
strong marine influence was also noted. Soil dust is also an important aerosol source in that region.
Como referenciar
GERAB, FABIO; ARTAXO, PAULO; GILLETT, R.; AYERS, G. PIXE, PIGE and ion chromatography of aerosol particles from northeast Amazon Basin. Nuclear Instruments & Methods in Physics Research Section B - Beam Interactions with Materials and Atoms, v. 136, p. 955-960, 1998. DOI: 10.1016/S0168-583X(97)00887-2. Disponível em: http://repositorio.ipen.br/handle/123456789/26717. Acesso em: 26 Apr 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.