학제간연구 | Interdisciplinary Studies in Gambling | 跨学科研究
- date : 2015-05-20 01:10|hit : 1397
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- Article] Evaluation of quantitative procedures for X-ray Microanalysis of environmental particles
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DocNo of ILP: 4080
Doc. Type: Article
Title: Evaluation of quantitative procedures for X-ray Microanalysis of environmental particles
Authors: Choeol, M; Deboudt, K; Flament, P
Full Name of Authors: Choeol, M.; Deboudt, K.; Flament, P.
Keywords by Author: electron microscopy; X-ray microanalysis; environmental particles
Keywords Plus: SCANNING-ELECTRON-MICROSCOPY; SEA-SALT PARTICLES; PROBE MICROANALYSIS; CHLORINE; PROGRAM
Abstract: Scanning electron microscopy combined with energy-dispersive X-ray spectrometry is particularly suited to characterizing morphology and elemental composition of individual microparticles. Although not straightforward, quantitative X-ray microanalysis of low-Z-containing particles is achievable using atmospheric thin-window X-ray detectors. A critical aspect of light element analysis is the choice of substrate material. In this work, particles were deposited on specially developed boron substrates. Three case studies were investigated successively in the order of increasing difficulty. Firstly, hundreds of calcium carbonate (CaCO3) particles ranging in size from 0.3 to 10 mu m were analyzed. Three quantitative procedures were tested: the "k-ratio" method, conventional ZAF correction, and Monte Carlo simulations. Average relative errors obtained by the reverse Monte Carlo quantitative program named CASINO were better than 2.5 wt %, carbon included. Secondly, further evaluation was carried out on a finely crushed biotite mineral, containing more than nine elements. Finally, airborne particulate matter, consisting of a complex heterogeneous mixture of particles, was investigated. By applying the Monte Carlo quantitative procedure, the observed particles were easily classified into particle types. Pure compounds (e.g., CaSO4 center dot 2H(2)O, SiO2, CaCO3, etc) were directly assigned according to stoichiometry. In some cases (marine-derived particles), a partial reactivity of atmospheric particles was demonstrated by quantitative analysis.
Cate of OECD: Basic medicine
Year of Publication: 2007
Business Area: casino
Detail Business: casino
Country: USA
Study Area:
Name of Journal: MICROSCOPY RESEARCH AND TECHNIQUE
Language: English
Country of Authors: Univ Littoral Cote dOpale, Lab Ecosyst Littorayx Cotiers, CNRS, FRE 2816, F-62930 Wimereux, France
Press Adress: Deboudt, K (reprint author), Univ Littoral Cote dOpale, Lab Ecosyst Littorayx Cotiers, CNRS, FRE 2816, 32 Ave Foch, F-62930 Wimereux, France.
Email Address: karine.deboudt@univ-littoral.fr
Citaion:
Funding:
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Number of Citaion: 23
Publication: WILEY-LISS
City of Publication: HOBOKEN
Address of Publication: DIV JOHN WILEY & SONS INC, 111 RIVER ST, HOBOKEN, NJ 07030 USA
ISSN: 1059-910X
29-Character Source Abbreviation: MICROSC RES TECHNIQ
ISO Source Abbreviation: Microsc. Res. Tech.
Volume: 70
Version: 11
Start of File: 996
End of File: 1002
DOI: 10.1002/jemt.20510
Number of Pages: 7
Web of Science Category: Anatomy & Morphology; Biology; Microscopy
Subject Category: Anatomy & Morphology; Life Sciences & Biomedicine - Other Topics; Microscopy
Document Delivery Number: 233FC
Unique Article Identifier: WOS:000251074800010
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