Search for and Analysis of Composition and Structure of Submicron-Size Particles in Geological and Environmental Samples | Sciact - CRIS-system of Boreskov Institute of Catalysis

Search for and Analysis of Composition and Structure of Submicron-Size Particles in Geological and Environmental Samples Full article

Conference

International Conference "Synchrotron and Free electron laser Radiation: generation and application"
13-17 Jul 2020 , Novosibirsk

Journal

AIP Conference Proceedings
ISSN: 0094-243X , E-ISSN: 1551-7616

Output data

Year: 2020, Volume: 2299, Number: 1, Article number : 070001, Pages count : 4 DOI: 10.1063/5.0030411

Authors

Darin Fedor ¹ , Kriventsov Vladimir ² , Sorokoletov Dmitry ¹ , Rakshun Iakov ¹ , Darin Andrey ³

Affiliations

1	Budker Institute of Nuclear Physics SB RAS, 11 Acad. Lavrentieva Pr., 630090, Novosibirsk, Russia
2	Boreskov Institute of Catalysis SB RAS, 5 Acad. Lavrentiev Ave., 630090, Novosibirsk, Russia
3	Sobolev Institute of Geology and Mineralogy SB RAS, 3 Ac. Koptyuga Ave., 630090, Novosibirsk, Russia

Funding (3)

1	Russian Foundation for Basic Research	19-05-50046 (АААА-А20-120011790071-5)
2	Russian Foundation for Basic Research	18-03-01251
3	Ministry of Science and Higher Education of the Russian Federation	05.621.21.0022 (RFMEFI62119X0022) (АААА-А20-120072290017-9)

A technique combining SR XRF, XRF mapping, μ-XRF, and μ-XAFS for search for microparticles in different matrices and determination of particle size, as well as analysis of their composition and structure, has been developed at Budker Institute of Nuclear Physics. The technique is based on comprehensive examination of sample with gradually increasing the spatial resolution and constricting the study area for locating the desired microparticle. The beam size for preliminary studies ranges from 1 mm to 100 um in height and 10 mm in width. The next stage is examination using X-ray optics (polycapillary lenses) with single-lens and confocal schemes. The apparatus function of each lens is measured, which enables controlled variation of the focal spot size from 10 um to 70 um. This multifacet technique was tested on search for and study of micro-inclusions of light platinum group metals (Ru and Pd) in Bushveld (South Africa) Intrusive Complex samples. An area with high concentration of Pd has been found. The particle sizes (~ 50 um) have been identified. A localized particle was studied using the μ-XAFS method. The forms of Pd state in the particle have been established; their structural parameters (interatomic distances and coordination numbers) have been determined. © 2020 American Institute of Physics Inc. All rights reserved.

Darin F. , Kriventsov V. , Sorokoletov D. , Rakshun I. , Darin A.
Search for and Analysis of Composition and Structure of Submicron-Size Particles in Geological and Environmental Samples

AIP Conference Proceedings. 2020. V.2299. N1. 070001 :1-4. DOI: 10.1063/5.0030411 Scopus РИНЦ AN OpenAlex

Full text from publisher

Published print:	Nov 17, 2020
Published online:	Nov 17, 2020

Scopus:	2-s2.0-85096488913
Elibrary:	45134779
Chemical Abstracts:	2021:1075005
OpenAlex:	W3103482831

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Elibrary	1
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