Composition and content analysis of fluoride in inorganic salts of the integument of Antarctic krill (Euphausia superba)

Ash of Antarctic krill integument (AAKI) was prepared by sintering the integument at 550°C under air atmosphere for 4 hours, and its composition was analyzed by X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR) and electron dispersive spectroscopy (EDS). XRD results showed that...

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Autores principales: Peng, Yuanhuai, Ji, Wei, Zhang, Di, Ji, Hongwu, Liu, Shucheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6536536/
https://www.ncbi.nlm.nih.gov/pubmed/31133736
http://dx.doi.org/10.1038/s41598-019-44337-6
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author Peng, Yuanhuai
Ji, Wei
Zhang, Di
Ji, Hongwu
Liu, Shucheng
author_facet Peng, Yuanhuai
Ji, Wei
Zhang, Di
Ji, Hongwu
Liu, Shucheng
author_sort Peng, Yuanhuai
collection PubMed
description Ash of Antarctic krill integument (AAKI) was prepared by sintering the integument at 550°C under air atmosphere for 4 hours, and its composition was analyzed by X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR) and electron dispersive spectroscopy (EDS). XRD results showed that the major phase in AAKI was ascribed to apatite. Besides, it was noticed that the (300) peak of AAKI shifted to 33.07°, which was coincident with that of fluorapatite (FA). The FTIR results confirmed the presence of phosphate ions, and the absence of -OH. The EDS results confirmed the presence of Ca, P, O and F elements in the ash sample. The content of FA in the ash was determined to be 50.4%, and the proportion of fluorine in the form of FA to the total fluorine in the integument was 40.5%. Based on the XRD, FTIR and EDS results, it can be concluded that FA was the main form of fluoride in the integument of Antarctic krill.
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spelling pubmed-65365362019-06-06 Composition and content analysis of fluoride in inorganic salts of the integument of Antarctic krill (Euphausia superba) Peng, Yuanhuai Ji, Wei Zhang, Di Ji, Hongwu Liu, Shucheng Sci Rep Article Ash of Antarctic krill integument (AAKI) was prepared by sintering the integument at 550°C under air atmosphere for 4 hours, and its composition was analyzed by X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR) and electron dispersive spectroscopy (EDS). XRD results showed that the major phase in AAKI was ascribed to apatite. Besides, it was noticed that the (300) peak of AAKI shifted to 33.07°, which was coincident with that of fluorapatite (FA). The FTIR results confirmed the presence of phosphate ions, and the absence of -OH. The EDS results confirmed the presence of Ca, P, O and F elements in the ash sample. The content of FA in the ash was determined to be 50.4%, and the proportion of fluorine in the form of FA to the total fluorine in the integument was 40.5%. Based on the XRD, FTIR and EDS results, it can be concluded that FA was the main form of fluoride in the integument of Antarctic krill. Nature Publishing Group UK 2019-05-27 /pmc/articles/PMC6536536/ /pubmed/31133736 http://dx.doi.org/10.1038/s41598-019-44337-6 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Peng, Yuanhuai
Ji, Wei
Zhang, Di
Ji, Hongwu
Liu, Shucheng
Composition and content analysis of fluoride in inorganic salts of the integument of Antarctic krill (Euphausia superba)
title Composition and content analysis of fluoride in inorganic salts of the integument of Antarctic krill (Euphausia superba)
title_full Composition and content analysis of fluoride in inorganic salts of the integument of Antarctic krill (Euphausia superba)
title_fullStr Composition and content analysis of fluoride in inorganic salts of the integument of Antarctic krill (Euphausia superba)
title_full_unstemmed Composition and content analysis of fluoride in inorganic salts of the integument of Antarctic krill (Euphausia superba)
title_short Composition and content analysis of fluoride in inorganic salts of the integument of Antarctic krill (Euphausia superba)
title_sort composition and content analysis of fluoride in inorganic salts of the integument of antarctic krill (euphausia superba)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6536536/
https://www.ncbi.nlm.nih.gov/pubmed/31133736
http://dx.doi.org/10.1038/s41598-019-44337-6
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