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Trace Metal Detection in Aqueous Reservoirs Using Stilbene Intercalated Layered Rare-Earth Hydroxide Tablets
Contamination of aquatic reservoirs with metal ions is a slow gradual process that is not easy to detect. Consequences of the metal ions, especially the ones with high atomic numbers (heavy metals) at high concentrations, are severe and irreversible in aquatic reservoirs. As such, early detection me...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Hindawi
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7152999/ https://www.ncbi.nlm.nih.gov/pubmed/32322426 http://dx.doi.org/10.1155/2020/9712872 |
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author | Omwoma, Solomon |
author_facet | Omwoma, Solomon |
author_sort | Omwoma, Solomon |
collection | PubMed |
description | Contamination of aquatic reservoirs with metal ions is a slow gradual process that is not easy to detect. Consequences of the metal ions, especially the ones with high atomic numbers (heavy metals) at high concentrations, are severe and irreversible in aquatic reservoirs. As such, early detection mechanisms, especially at trace concentration, are essential for mitigation measures. In this work, a new, robust, and effective tool for trace metal detection and monitoring in aqueous solutions has been developed. Tablets (1 mm thick and similar to medicinal tablets) were manufactured from a powder comprising stilbene intercalated into gallery spaces of lanthanide-containing layered double hydroxides. The tablets were placed in a water column having different concentrations of Pb(2+) and Cu(2+) ions, and the water was allowed to flow for 45 minutes at a flow rate of 100 ml/s. Thereafter, the tablets were dried and made to powder, and their phosphorescence was measured. The gradual stilbene phosphorescence turnoff in the tablets from various concentrations of metal ions was correlated with sorption amounts. The tablets were able to detect effectively metal ions (up to Pb(2+) 1.0 mmol/L and Cu(2+) 5.0 mmol/L) in the aqueous media. As such, the concentrations of Pb(2+) and Cu(2+) ions at trace levels were determined in the test solutions. This method provides a real-time metal ion analysis and does not involve sampling of water samples for analysis in the laboratory. |
format | Online Article Text |
id | pubmed-7152999 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Hindawi |
record_format | MEDLINE/PubMed |
spelling | pubmed-71529992020-04-22 Trace Metal Detection in Aqueous Reservoirs Using Stilbene Intercalated Layered Rare-Earth Hydroxide Tablets Omwoma, Solomon J Anal Methods Chem Research Article Contamination of aquatic reservoirs with metal ions is a slow gradual process that is not easy to detect. Consequences of the metal ions, especially the ones with high atomic numbers (heavy metals) at high concentrations, are severe and irreversible in aquatic reservoirs. As such, early detection mechanisms, especially at trace concentration, are essential for mitigation measures. In this work, a new, robust, and effective tool for trace metal detection and monitoring in aqueous solutions has been developed. Tablets (1 mm thick and similar to medicinal tablets) were manufactured from a powder comprising stilbene intercalated into gallery spaces of lanthanide-containing layered double hydroxides. The tablets were placed in a water column having different concentrations of Pb(2+) and Cu(2+) ions, and the water was allowed to flow for 45 minutes at a flow rate of 100 ml/s. Thereafter, the tablets were dried and made to powder, and their phosphorescence was measured. The gradual stilbene phosphorescence turnoff in the tablets from various concentrations of metal ions was correlated with sorption amounts. The tablets were able to detect effectively metal ions (up to Pb(2+) 1.0 mmol/L and Cu(2+) 5.0 mmol/L) in the aqueous media. As such, the concentrations of Pb(2+) and Cu(2+) ions at trace levels were determined in the test solutions. This method provides a real-time metal ion analysis and does not involve sampling of water samples for analysis in the laboratory. Hindawi 2020-04-12 /pmc/articles/PMC7152999/ /pubmed/32322426 http://dx.doi.org/10.1155/2020/9712872 Text en Copyright © 2020 Solomon Omwoma. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Omwoma, Solomon Trace Metal Detection in Aqueous Reservoirs Using Stilbene Intercalated Layered Rare-Earth Hydroxide Tablets |
title | Trace Metal Detection in Aqueous Reservoirs Using Stilbene Intercalated Layered Rare-Earth Hydroxide Tablets |
title_full | Trace Metal Detection in Aqueous Reservoirs Using Stilbene Intercalated Layered Rare-Earth Hydroxide Tablets |
title_fullStr | Trace Metal Detection in Aqueous Reservoirs Using Stilbene Intercalated Layered Rare-Earth Hydroxide Tablets |
title_full_unstemmed | Trace Metal Detection in Aqueous Reservoirs Using Stilbene Intercalated Layered Rare-Earth Hydroxide Tablets |
title_short | Trace Metal Detection in Aqueous Reservoirs Using Stilbene Intercalated Layered Rare-Earth Hydroxide Tablets |
title_sort | trace metal detection in aqueous reservoirs using stilbene intercalated layered rare-earth hydroxide tablets |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7152999/ https://www.ncbi.nlm.nih.gov/pubmed/32322426 http://dx.doi.org/10.1155/2020/9712872 |
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