Silver speciation in liver of marine mammals by synchrotron X-ray absorption fine structure and X-ray fluorescence spectroscopies
The chemical form of Ag in the livers of five species of marine mammals was examined using X-ray absorption fine structure (XAFS) and X-ray fluorescence (XRF) spectroscopies. The XAFS analysis suggested that Ag2Se was present in the livers of the Franciscana dolphin (Pontoporia blainvillei), Dall's...
| Autor principal: | Nakazawa, Emiko |
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| Outros Autores: | Ikemoto, Tokutaka, Hokura, Akiko, Terada, Yasuko, Kunito, Takashi, Yamamoto, Takahito, Yamada, Tadasu K., Weber Rosas, Fernando Cesar, Fillmann, Gilberto, Tanabe, Shinsuke, Nakai, Izumi |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Journal of Environmental Monitoring
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/18195 |
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oai:repositorio:1-18195 |
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dspace |
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oai:repositorio:1-18195 Silver speciation in liver of marine mammals by synchrotron X-ray absorption fine structure and X-ray fluorescence spectroscopies Nakazawa, Emiko Ikemoto, Tokutaka Hokura, Akiko Terada, Yasuko Kunito, Takashi Yamamoto, Takahito Yamada, Tadasu K. Weber Rosas, Fernando Cesar Fillmann, Gilberto Tanabe, Shinsuke Nakai, Izumi Silver Chemical Analysis Dolphin Marine Environment Nonhuman Priority Journal Stenella Whale X Ray Absorption Spectroscopy Animal Dolphins Female Liver Male Selenium Silver Spectrometry, X-ray Emission Sulfur Water Pollutants, Chemical Whales X Ray Absorption Spectroscopy Berardius Bairdii Feresa Feresa Attenuata Mammalia Phocoenoides Dalli Pontoporia Blainvillei Stenella (cetacea) Stenella Coeruleoalba Ziphiidae The chemical form of Ag in the livers of five species of marine mammals was examined using X-ray absorption fine structure (XAFS) and X-ray fluorescence (XRF) spectroscopies. The XAFS analysis suggested that Ag2Se was present in the livers of the Franciscana dolphin (Pontoporia blainvillei), Dall's porpoise (Phocoenoides dalli), and Baird's beaked whale (Berardius bairdii), whereas Ag2S was present in the livers of the striped dolphin (Stenella coeruleoalba) and pygmy killer whale (Feresa attenuata). XRF spectroscopy results revealed that the distribution patterns of Ag and Se in a thin section of the liver of the Franciscana dolphin were the same; this also implied that Ag was associated with Se in the liver. Thus, the interaction of Ag with Se or S may offer significant protection against the toxicity of Ag in marine mammals. The formation of either Ag2Se or Ag2S might depend on the Hg levels in the liver. Ag2Se was observed in liver samples with relatively high Ag/Hg ratio, whereas liver samples with low Ag/Hg ratio contained Ag2S. © The Royal Society of Chemistry. 2020-06-15T21:52:30Z 2020-06-15T21:52:30Z 2011 Artigo https://repositorio.inpa.gov.br/handle/1/18195 10.1039/c1em10115c en Volume 13, Número 6, Pags. 1678-1686 Restrito Journal of Environmental Monitoring |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Silver Chemical Analysis Dolphin Marine Environment Nonhuman Priority Journal Stenella Whale X Ray Absorption Spectroscopy Animal Dolphins Female Liver Male Selenium Silver Spectrometry, X-ray Emission Sulfur Water Pollutants, Chemical Whales X Ray Absorption Spectroscopy Berardius Bairdii Feresa Feresa Attenuata Mammalia Phocoenoides Dalli Pontoporia Blainvillei Stenella (cetacea) Stenella Coeruleoalba Ziphiidae |
| spellingShingle |
Silver Chemical Analysis Dolphin Marine Environment Nonhuman Priority Journal Stenella Whale X Ray Absorption Spectroscopy Animal Dolphins Female Liver Male Selenium Silver Spectrometry, X-ray Emission Sulfur Water Pollutants, Chemical Whales X Ray Absorption Spectroscopy Berardius Bairdii Feresa Feresa Attenuata Mammalia Phocoenoides Dalli Pontoporia Blainvillei Stenella (cetacea) Stenella Coeruleoalba Ziphiidae Nakazawa, Emiko Silver speciation in liver of marine mammals by synchrotron X-ray absorption fine structure and X-ray fluorescence spectroscopies |
| topic_facet |
Silver Chemical Analysis Dolphin Marine Environment Nonhuman Priority Journal Stenella Whale X Ray Absorption Spectroscopy Animal Dolphins Female Liver Male Selenium Silver Spectrometry, X-ray Emission Sulfur Water Pollutants, Chemical Whales X Ray Absorption Spectroscopy Berardius Bairdii Feresa Feresa Attenuata Mammalia Phocoenoides Dalli Pontoporia Blainvillei Stenella (cetacea) Stenella Coeruleoalba Ziphiidae |
| description |
The chemical form of Ag in the livers of five species of marine mammals was examined using X-ray absorption fine structure (XAFS) and X-ray fluorescence (XRF) spectroscopies. The XAFS analysis suggested that Ag2Se was present in the livers of the Franciscana dolphin (Pontoporia blainvillei), Dall's porpoise (Phocoenoides dalli), and Baird's beaked whale (Berardius bairdii), whereas Ag2S was present in the livers of the striped dolphin (Stenella coeruleoalba) and pygmy killer whale (Feresa attenuata). XRF spectroscopy results revealed that the distribution patterns of Ag and Se in a thin section of the liver of the Franciscana dolphin were the same; this also implied that Ag was associated with Se in the liver. Thus, the interaction of Ag with Se or S may offer significant protection against the toxicity of Ag in marine mammals. The formation of either Ag2Se or Ag2S might depend on the Hg levels in the liver. Ag2Se was observed in liver samples with relatively high Ag/Hg ratio, whereas liver samples with low Ag/Hg ratio contained Ag2S. © The Royal Society of Chemistry. |
| format |
Artigo |
| author |
Nakazawa, Emiko |
| author2 |
Ikemoto, Tokutaka Hokura, Akiko Terada, Yasuko Kunito, Takashi Yamamoto, Takahito Yamada, Tadasu K. Weber Rosas, Fernando Cesar Fillmann, Gilberto Tanabe, Shinsuke Nakai, Izumi |
| author2Str |
Ikemoto, Tokutaka Hokura, Akiko Terada, Yasuko Kunito, Takashi Yamamoto, Takahito Yamada, Tadasu K. Weber Rosas, Fernando Cesar Fillmann, Gilberto Tanabe, Shinsuke Nakai, Izumi |
| title |
Silver speciation in liver of marine mammals by synchrotron X-ray absorption fine structure and X-ray fluorescence spectroscopies |
| title_short |
Silver speciation in liver of marine mammals by synchrotron X-ray absorption fine structure and X-ray fluorescence spectroscopies |
| title_full |
Silver speciation in liver of marine mammals by synchrotron X-ray absorption fine structure and X-ray fluorescence spectroscopies |
| title_fullStr |
Silver speciation in liver of marine mammals by synchrotron X-ray absorption fine structure and X-ray fluorescence spectroscopies |
| title_full_unstemmed |
Silver speciation in liver of marine mammals by synchrotron X-ray absorption fine structure and X-ray fluorescence spectroscopies |
| title_sort |
silver speciation in liver of marine mammals by synchrotron x-ray absorption fine structure and x-ray fluorescence spectroscopies |
| publisher |
Journal of Environmental Monitoring |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/18195 |
| _version_ |
1787142966406545408 |
| score |
11.755432 |