Applicability of the determinations of UV-visible absorption for the characterization and evaluation of humic substances in aquatic environments
The applicability of UV-visible absorption measurements was analyzed as a rapid and easy way for the determination and characterization of humic substances in aquatic environments taking into account their ecological meaning. Samples for these studies were taken from Río Samborombón, Arroyo Vitel an...
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste)
2023
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| Acceso en línea: | https://revistas.unne.edu.ar/index.php/eco/article/view/7098 |
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I48-R154-article-70982023-12-01T21:25:10Z Applicability of the determinations of UV-visible absorption for the characterization and evaluation of humic substances in aquatic environments Aplicabilidad de las determinaciones de absorción en el UV-visible para la caracterización de las sustancias húmicas en ambientes acuáticos Conzonno, Víctor H. Fernandez Cirelli, Alicia The applicability of UV-visible absorption measurements was analyzed as a rapid and easy way for the determination and characterization of humic substances in aquatic environments taking into account their ecological meaning. Samples for these studies were taken from Río Samborombón, Arroyo Vitel and Laguna de Chascomús (Provincia de Buenos Aires, Argentina). In spite of the different absorption of humic and fulvic acids at the wavelengths employed, the method proved to be useful to account for the relative proportion of them, to make comparisons betwcen different ecosystems and to give the possibility of using it to follow the dinamycs of these substances in a given water body. In an attempt to use absorbance determinations as a measure of soluble organic matter content, correlation between Chemical oxygen demand and absorbance at 250 nm and at 365 nm was analyzed. Good results were obtained for Río Samborombón at both wavelengths, while in the other cases correlation was more significative at 365 nm. The applicability of UV-visible absorption measurements was analyzed as a rapid and easy way for the determination and characterization of humic substances in aquatic environments taking into account their ecological meaning. Samples for these studies were taken from Río Samborombón, Arroyo Vitel and Laguna de Chascomús (Provincia de Buenos Aires, Argentina). In spite of the different absorption of humic and fulvic acids at the wavelengths employed, the method proved to be useful to account for the relative proportion of them, to make comparisons betwcen different ecosystems and to give the possibility of using it to follow the dinamycs of these substances in a given water body. In an attempt to use absorbance determinations as a measure of soluble organic matter content, correlation between Chemical oxygen demand and absorbance at 250 nm and at 365 nm was analyzed. Good results were obtained for Río Samborombón at both wavelengths, while in the other cases correlation was more significative at 365 nm. Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste) 2023-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares application/pdf https://revistas.unne.edu.ar/index.php/eco/article/view/7098 10.30972/eco.14257098 Ecosur; 1987: vol. 14-15, nos. 25-26; 1-6 0325-108X spa https://revistas.unne.edu.ar/index.php/eco/article/view/7098/6535 |
| institution |
Universidad Nacional del Nordeste |
| institution_str |
I-48 |
| repository_str |
R-154 |
| container_title_str |
Revistas UNNE - Universidad Nacional del Noroeste (UNNE) |
| language |
Español |
| format |
Artículo revista |
| author |
Conzonno, Víctor H. Fernandez Cirelli, Alicia |
| spellingShingle |
Conzonno, Víctor H. Fernandez Cirelli, Alicia Applicability of the determinations of UV-visible absorption for the characterization and evaluation of humic substances in aquatic environments |
| author_facet |
Conzonno, Víctor H. Fernandez Cirelli, Alicia |
| author_sort |
Conzonno, Víctor H. |
| title |
Applicability of the determinations of UV-visible absorption for the characterization and evaluation of humic substances in aquatic environments |
| title_short |
Applicability of the determinations of UV-visible absorption for the characterization and evaluation of humic substances in aquatic environments |
| title_full |
Applicability of the determinations of UV-visible absorption for the characterization and evaluation of humic substances in aquatic environments |
| title_fullStr |
Applicability of the determinations of UV-visible absorption for the characterization and evaluation of humic substances in aquatic environments |
| title_full_unstemmed |
Applicability of the determinations of UV-visible absorption for the characterization and evaluation of humic substances in aquatic environments |
| title_sort |
applicability of the determinations of uv-visible absorption for the characterization and evaluation of humic substances in aquatic environments |
| description |
The applicability of UV-visible absorption measurements was analyzed as a rapid and easy way for the determination and characterization of humic substances in aquatic environments taking into account their ecological meaning. Samples for these studies were taken from Río Samborombón, Arroyo Vitel and Laguna de Chascomús (Provincia de Buenos Aires, Argentina). In spite of the different absorption of humic and fulvic acids at the wavelengths employed, the method proved to be useful to account for the relative proportion of them, to make comparisons betwcen different ecosystems and to give the possibility of using it to follow the dinamycs of these substances in a given water body. In an attempt to use absorbance determinations as a measure of soluble organic matter content, correlation between Chemical oxygen demand and absorbance at 250 nm and at 365 nm was analyzed. Good results were obtained for Río Samborombón at both wavelengths, while in the other cases correlation was more significative at 365 nm. |
| publisher |
Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste) |
| publishDate |
2023 |
| url |
https://revistas.unne.edu.ar/index.php/eco/article/view/7098 |
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2024-08-21T22:38:52Z |
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