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FTIR photoacoustic spectroscopy for identification and assessment of soil components: Chernozems and their size fractions
FTIR photoacoustic spectroscopy was used to approach inorganic matrix components and organic-matter constituents of chernozem size fractions (1–5000 μm, by dry sieving) with a different history of use (from intact steppe to permanent bare fallow, a continuous long-term field experiment). The conditi...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7292858/ https://www.ncbi.nlm.nih.gov/pubmed/32551228 http://dx.doi.org/10.1016/j.pacs.2020.100162 |
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author | Krivoshein, Petr K. Volkov, Dmitry S. Rogova, Olga B. Proskurnin, Mikhail A. |
author_facet | Krivoshein, Petr K. Volkov, Dmitry S. Rogova, Olga B. Proskurnin, Mikhail A. |
author_sort | Krivoshein, Petr K. |
collection | PubMed |
description | FTIR photoacoustic spectroscopy was used to approach inorganic matrix components and organic-matter constituents of chernozem size fractions (1–5000 μm, by dry sieving) with a different history of use (from intact steppe to permanent bare fallow, a continuous long-term field experiment). The conditions of FTIR photoacoustic measurements in continuous-scan modes were compared with attenuated total reflection measurements, the advantages of photoacoustic measurements resulting from a higher intensity of the incident radiation and signal-generating volume were discussed. Overtone peaks of quartz as a soil matrix component at 2000–1700 cm(–1) were selected as a possible internal-standard (guide) bands for the comparison of photoacoustic spectra. For different land-use samples, differences in the composition were found, which are differently manifested in normalized spectra of size fractions, with millimeter-size, 20–100 μm, and silt fraction bearing the maximum information. |
format | Online Article Text |
id | pubmed-7292858 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-72928582020-06-17 FTIR photoacoustic spectroscopy for identification and assessment of soil components: Chernozems and their size fractions Krivoshein, Petr K. Volkov, Dmitry S. Rogova, Olga B. Proskurnin, Mikhail A. Photoacoustics VSI: ICPPP-20 FTIR photoacoustic spectroscopy was used to approach inorganic matrix components and organic-matter constituents of chernozem size fractions (1–5000 μm, by dry sieving) with a different history of use (from intact steppe to permanent bare fallow, a continuous long-term field experiment). The conditions of FTIR photoacoustic measurements in continuous-scan modes were compared with attenuated total reflection measurements, the advantages of photoacoustic measurements resulting from a higher intensity of the incident radiation and signal-generating volume were discussed. Overtone peaks of quartz as a soil matrix component at 2000–1700 cm(–1) were selected as a possible internal-standard (guide) bands for the comparison of photoacoustic spectra. For different land-use samples, differences in the composition were found, which are differently manifested in normalized spectra of size fractions, with millimeter-size, 20–100 μm, and silt fraction bearing the maximum information. Elsevier 2020-01-22 /pmc/articles/PMC7292858/ /pubmed/32551228 http://dx.doi.org/10.1016/j.pacs.2020.100162 Text en © 2020 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | VSI: ICPPP-20 Krivoshein, Petr K. Volkov, Dmitry S. Rogova, Olga B. Proskurnin, Mikhail A. FTIR photoacoustic spectroscopy for identification and assessment of soil components: Chernozems and their size fractions |
title | FTIR photoacoustic spectroscopy for identification and assessment of soil components: Chernozems and their size fractions |
title_full | FTIR photoacoustic spectroscopy for identification and assessment of soil components: Chernozems and their size fractions |
title_fullStr | FTIR photoacoustic spectroscopy for identification and assessment of soil components: Chernozems and their size fractions |
title_full_unstemmed | FTIR photoacoustic spectroscopy for identification and assessment of soil components: Chernozems and their size fractions |
title_short | FTIR photoacoustic spectroscopy for identification and assessment of soil components: Chernozems and their size fractions |
title_sort | ftir photoacoustic spectroscopy for identification and assessment of soil components: chernozems and their size fractions |
topic | VSI: ICPPP-20 |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7292858/ https://www.ncbi.nlm.nih.gov/pubmed/32551228 http://dx.doi.org/10.1016/j.pacs.2020.100162 |
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