Platinum determination by membrane complexation and energy dispersive x-ray fluorescence analysis—A preliminary study
Platinum belongs to the technological metal group of platinum group metals, but it is finding more and more applications these days, especially in automotive catalytic converters and medicine. At the same time, the existing data on its potential toxicity both to humans and to the environment are currently rather limited, and there is also a need to increase the alternative possibilities of its chemical analysis. In this work, an attempt is made for the first time to determine platinum in aqueous samples with energy-dispersive X-ray fluorescence (EDXRF) at low concentrations. For this reason, selective complexing membranes were used that were produced in the context of the present research, after first testing many possible complexing agents. These membranes were fixed on the surface of thin films, immersed in the aqueous samples containing platinum at low concentrations, and after a certain period was collected and analyzed by EDXRF. In addition, other relevant factors such as the distribution of platinum on the membrane surface, the aging of the membrane, the effect of adding salts of various concentrations to the analyzed solution on the improvement of the achieved x-ray yields, the pH, the optimal solution volume and the necessary equilibration time were also investigated. By optimizing all relevant factors, a minimum detection limit of 4 μg/L was achieved.
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Language: | English |
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Wiley-Blackwell
2023-01-01
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Subjects: | XRF, Complexing, Membrane, Platinum, Water analysis, http://metadata.un.org/sdg/6, Ensure availability and sustainable management of water and sanitation for all, |
Online Access: | http://hdl.handle.net/10261/311180 https://api.elsevier.com/content/abstract/scopus_id/85160586918 |
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dig-idaea-es-10261-3111802024-05-18T20:42:28Z Platinum determination by membrane complexation and energy dispersive x-ray fluorescence analysis—A preliminary study Vlamaki, Georgia P. Kallithrakas-Kontos, Nikolaos G. Queralt Mitjans, Ignacio Hidalgo, Manuela 0009-0006-7024-5275 0000-0002-4261-5279 0000-0002-8790-8382 XRF Complexing Membrane Platinum Water analysis http://metadata.un.org/sdg/6 Ensure availability and sustainable management of water and sanitation for all Platinum belongs to the technological metal group of platinum group metals, but it is finding more and more applications these days, especially in automotive catalytic converters and medicine. At the same time, the existing data on its potential toxicity both to humans and to the environment are currently rather limited, and there is also a need to increase the alternative possibilities of its chemical analysis. In this work, an attempt is made for the first time to determine platinum in aqueous samples with energy-dispersive X-ray fluorescence (EDXRF) at low concentrations. For this reason, selective complexing membranes were used that were produced in the context of the present research, after first testing many possible complexing agents. These membranes were fixed on the surface of thin films, immersed in the aqueous samples containing platinum at low concentrations, and after a certain period was collected and analyzed by EDXRF. In addition, other relevant factors such as the distribution of platinum on the membrane surface, the aging of the membrane, the effect of adding salts of various concentrations to the analyzed solution on the improvement of the achieved x-ray yields, the pH, the optimal solution volume and the necessary equilibration time were also investigated. By optimizing all relevant factors, a minimum detection limit of 4 μg/L was achieved. Peer reviewed 2023-06-12T08:01:26Z 2023-06-12T08:01:26Z 2023-01-01 artículo http://purl.org/coar/resource_type/c_6501 X-Ray Sprectometry (2023) 00498246 http://hdl.handle.net/10261/311180 10.1002/xrs.3368 2-s2.0-85160586918 https://api.elsevier.com/content/abstract/scopus_id/85160586918 en X-Ray Spectrometry Postprint https://doi.org/10.1002/xrs.3368 Sí open Wiley-Blackwell |
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XRF Complexing Membrane Platinum Water analysis http://metadata.un.org/sdg/6 Ensure availability and sustainable management of water and sanitation for all XRF Complexing Membrane Platinum Water analysis http://metadata.un.org/sdg/6 Ensure availability and sustainable management of water and sanitation for all |
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XRF Complexing Membrane Platinum Water analysis http://metadata.un.org/sdg/6 Ensure availability and sustainable management of water and sanitation for all XRF Complexing Membrane Platinum Water analysis http://metadata.un.org/sdg/6 Ensure availability and sustainable management of water and sanitation for all Vlamaki, Georgia P. Kallithrakas-Kontos, Nikolaos G. Queralt Mitjans, Ignacio Hidalgo, Manuela Platinum determination by membrane complexation and energy dispersive x-ray fluorescence analysis—A preliminary study |
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Platinum belongs to the technological metal group of platinum group metals, but it is finding more and more applications these days, especially in automotive catalytic converters and medicine. At the same time, the existing data on its potential toxicity both to humans and to the environment are currently rather limited, and there is also a need to increase the alternative possibilities of its chemical analysis. In this work, an attempt is made for the first time to determine platinum in aqueous samples with energy-dispersive X-ray fluorescence (EDXRF) at low concentrations. For this reason, selective complexing membranes were used that were produced in the context of the present research, after first testing many possible complexing agents. These membranes were fixed on the surface of thin films, immersed in the aqueous samples containing platinum at low concentrations, and after a certain period was collected and analyzed by EDXRF. In addition, other relevant factors such as the distribution of platinum on the membrane surface, the aging of the membrane, the effect of adding salts of various concentrations to the analyzed solution on the improvement of the achieved x-ray yields, the pH, the optimal solution volume and the necessary equilibration time were also investigated. By optimizing all relevant factors, a minimum detection limit of 4 μg/L was achieved. |
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0009-0006-7024-5275 |
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0009-0006-7024-5275 Vlamaki, Georgia P. Kallithrakas-Kontos, Nikolaos G. Queralt Mitjans, Ignacio Hidalgo, Manuela |
format |
artículo |
topic_facet |
XRF Complexing Membrane Platinum Water analysis http://metadata.un.org/sdg/6 Ensure availability and sustainable management of water and sanitation for all |
author |
Vlamaki, Georgia P. Kallithrakas-Kontos, Nikolaos G. Queralt Mitjans, Ignacio Hidalgo, Manuela |
author_sort |
Vlamaki, Georgia P. |
title |
Platinum determination by membrane complexation and energy dispersive x-ray fluorescence analysis—A preliminary study |
title_short |
Platinum determination by membrane complexation and energy dispersive x-ray fluorescence analysis—A preliminary study |
title_full |
Platinum determination by membrane complexation and energy dispersive x-ray fluorescence analysis—A preliminary study |
title_fullStr |
Platinum determination by membrane complexation and energy dispersive x-ray fluorescence analysis—A preliminary study |
title_full_unstemmed |
Platinum determination by membrane complexation and energy dispersive x-ray fluorescence analysis—A preliminary study |
title_sort |
platinum determination by membrane complexation and energy dispersive x-ray fluorescence analysis—a preliminary study |
publisher |
Wiley-Blackwell |
publishDate |
2023-01-01 |
url |
http://hdl.handle.net/10261/311180 https://api.elsevier.com/content/abstract/scopus_id/85160586918 |
work_keys_str_mv |
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