First-Time Isotopic Characterization of Seleno-Compounds in Biota: A Pilot Study of Selenium Isotopic Composition in Top Predator Seabirds.
This study pioneers the reporting of Se isotopes in marine top predators and represents the most extensive Se isotopic characterization in animals to date. A methodology based on hydride generation─multicollector inductively coupled plasma mass spectrometry─was established for such samples. The stud...
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American Chemical Society
2024
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Online Access: | https://doi.org/10.1021/acs.est.4c02319 https://pubmed.ncbi.nlm.nih.gov/39018327 |
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ftpubmed:39018327 2024-09-15T18:07:27+00:00 First-Time Isotopic Characterization of Seleno-Compounds in Biota: A Pilot Study of Selenium Isotopic Composition in Top Predator Seabirds. Marchán-Moreno, Claudia Louvat, Pascale Bueno, Maite Berail, Sylvain Corns, Warren T Cherel, Yves Bustamante, Paco Amouroux, David Pedrero, Zoyne 2024 Jul 17 https://doi.org/10.1021/acs.est.4c02319 https://pubmed.ncbi.nlm.nih.gov/39018327 eng eng American Chemical Society https://doi.org/10.1021/acs.est.4c02319 https://pubmed.ncbi.nlm.nih.gov/39018327 Environ Sci Technol ISSN:1520-5851 HG-MC-ICP-MS HgSe nanoparticles biota giant petrel selenoneine stable isotopes Journal Article 2024 ftpubmed https://doi.org/10.1021/acs.est.4c02319 2024-07-19T16:02:00Z This study pioneers the reporting of Se isotopes in marine top predators and represents the most extensive Se isotopic characterization in animals to date. A methodology based on hydride generation─multicollector inductively coupled plasma mass spectrometry─was established for such samples. The study was conducted on various internal organs of giant petrels (Macronectes spp.), encompassing bulk tissues (δ82/78Sebulk), distinct Se-specific fractions such as selenoneine (δ82/78SeSEN), and HgSe nanoparticles (δ82/78SeNPs). The δ82/78Sebulk results (2.0-5.6‰) offer preliminary insights into the fate of Se in key internal organs of seabirds, including the liver, the kidneys, the muscle, and the brain. Notably, the liver of all individuals was enriched in heavier Se isotopes compared to other examined tissues. In nanoparticle fraction, δ82/78Se varies significantly across individuals (δ82/78SeNPs from 0.6 to 5.7‰, n = 8), whereas it exhibits remarkable consistency among tissues and individuals for selenoneine (δ82/78SeSEN, 1.7 ± 0.3‰, n = 8). Significantly, there was a positive correlation between the shift from δ82/78Sebulk to δ82/78SeSEN and the proportion of Se present as selenoneine in the internal organs. This pilot study proves that Se species-specific isotopic composition is a promising tool for a better understanding of Se species fate, sources, and dynamics in animals. Article in Journal/Newspaper Giant Petrel Giant Petrels PubMed Central (PMC) Environmental Science & Technology |
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PubMed Central (PMC) |
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language |
English |
topic |
HG-MC-ICP-MS HgSe nanoparticles biota giant petrel selenoneine stable isotopes |
spellingShingle |
HG-MC-ICP-MS HgSe nanoparticles biota giant petrel selenoneine stable isotopes Marchán-Moreno, Claudia Louvat, Pascale Bueno, Maite Berail, Sylvain Corns, Warren T Cherel, Yves Bustamante, Paco Amouroux, David Pedrero, Zoyne First-Time Isotopic Characterization of Seleno-Compounds in Biota: A Pilot Study of Selenium Isotopic Composition in Top Predator Seabirds. |
topic_facet |
HG-MC-ICP-MS HgSe nanoparticles biota giant petrel selenoneine stable isotopes |
description |
This study pioneers the reporting of Se isotopes in marine top predators and represents the most extensive Se isotopic characterization in animals to date. A methodology based on hydride generation─multicollector inductively coupled plasma mass spectrometry─was established for such samples. The study was conducted on various internal organs of giant petrels (Macronectes spp.), encompassing bulk tissues (δ82/78Sebulk), distinct Se-specific fractions such as selenoneine (δ82/78SeSEN), and HgSe nanoparticles (δ82/78SeNPs). The δ82/78Sebulk results (2.0-5.6‰) offer preliminary insights into the fate of Se in key internal organs of seabirds, including the liver, the kidneys, the muscle, and the brain. Notably, the liver of all individuals was enriched in heavier Se isotopes compared to other examined tissues. In nanoparticle fraction, δ82/78Se varies significantly across individuals (δ82/78SeNPs from 0.6 to 5.7‰, n = 8), whereas it exhibits remarkable consistency among tissues and individuals for selenoneine (δ82/78SeSEN, 1.7 ± 0.3‰, n = 8). Significantly, there was a positive correlation between the shift from δ82/78Sebulk to δ82/78SeSEN and the proportion of Se present as selenoneine in the internal organs. This pilot study proves that Se species-specific isotopic composition is a promising tool for a better understanding of Se species fate, sources, and dynamics in animals. |
format |
Article in Journal/Newspaper |
author |
Marchán-Moreno, Claudia Louvat, Pascale Bueno, Maite Berail, Sylvain Corns, Warren T Cherel, Yves Bustamante, Paco Amouroux, David Pedrero, Zoyne |
author_facet |
Marchán-Moreno, Claudia Louvat, Pascale Bueno, Maite Berail, Sylvain Corns, Warren T Cherel, Yves Bustamante, Paco Amouroux, David Pedrero, Zoyne |
author_sort |
Marchán-Moreno, Claudia |
title |
First-Time Isotopic Characterization of Seleno-Compounds in Biota: A Pilot Study of Selenium Isotopic Composition in Top Predator Seabirds. |
title_short |
First-Time Isotopic Characterization of Seleno-Compounds in Biota: A Pilot Study of Selenium Isotopic Composition in Top Predator Seabirds. |
title_full |
First-Time Isotopic Characterization of Seleno-Compounds in Biota: A Pilot Study of Selenium Isotopic Composition in Top Predator Seabirds. |
title_fullStr |
First-Time Isotopic Characterization of Seleno-Compounds in Biota: A Pilot Study of Selenium Isotopic Composition in Top Predator Seabirds. |
title_full_unstemmed |
First-Time Isotopic Characterization of Seleno-Compounds in Biota: A Pilot Study of Selenium Isotopic Composition in Top Predator Seabirds. |
title_sort |
first-time isotopic characterization of seleno-compounds in biota: a pilot study of selenium isotopic composition in top predator seabirds. |
publisher |
American Chemical Society |
publishDate |
2024 |
url |
https://doi.org/10.1021/acs.est.4c02319 https://pubmed.ncbi.nlm.nih.gov/39018327 |
genre |
Giant Petrel Giant Petrels |
genre_facet |
Giant Petrel Giant Petrels |
op_source |
Environ Sci Technol ISSN:1520-5851 |
op_relation |
https://doi.org/10.1021/acs.est.4c02319 https://pubmed.ncbi.nlm.nih.gov/39018327 |
op_doi |
https://doi.org/10.1021/acs.est.4c02319 |
container_title |
Environmental Science & Technology |
_version_ |
1810444837886885888 |