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Colorimetric Paper-Based Analytical Devices (PADs) Backed by Chemometrics for Pd(II) Detection
This paper presents the development of cheap and selective Paper-based Analytical Devices (PADs) for selective Pd(II) determination from very acidic aqueous solutions. The PADs were obtained by impregnating two cm-side squares of filter paper with an azoic ligand, (2-(tetrazolylazo)-1,8 dihydroxy na...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10490827/ https://www.ncbi.nlm.nih.gov/pubmed/37687882 http://dx.doi.org/10.3390/s23177425 |
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author | Alberti, Giancarla Magnaghi, Lisa Rita Iurato, Marzia Zanoni, Camilla Biesuz, Raffaela |
author_facet | Alberti, Giancarla Magnaghi, Lisa Rita Iurato, Marzia Zanoni, Camilla Biesuz, Raffaela |
author_sort | Alberti, Giancarla |
collection | PubMed |
description | This paper presents the development of cheap and selective Paper-based Analytical Devices (PADs) for selective Pd(II) determination from very acidic aqueous solutions. The PADs were obtained by impregnating two cm-side squares of filter paper with an azoic ligand, (2-(tetrazolylazo)-1,8 dihydroxy naphthalene-3,6,-disulphonic acid), termed TazoC. The so-obtained orange TazoC-PADs interact quickly with Pd(II) in aqueous solutions by forming a complex purple-blue-colored already at pH lower than 2. The dye complexes no other metal ions at such an acidic media, making TazoC-PADs highly selective to Pd(II) detection. Besides, at higher pH values, other cations, for example, Cu(II) and Ni(II), can interact with TazoC through the formation of stable and pink-magenta-colored complexes; however, it is possible to quantify Pd(II) in the presence of other cations using a multivariate approach. To this end, UV-vis spectra of the TazoC-PADs after equilibration with the metal ions solutions were registered in the 300–800 nm wavelength range. By applying Partial Least Square regression (PLS), the whole UV-vis spectra of the TazoC-PADs were related to the Pd(II) concentrations both when present alone in solution and also in the presence of Cu(II) and Ni(II). Tailored PLS models obtained with matrix-matched standard solutions correctly predicted Pd(II) concentrations in unknown samples and tap water spiked with the metal cation, making the method promising for quick and economical sensing of Pd(II). |
format | Online Article Text |
id | pubmed-10490827 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-104908272023-09-09 Colorimetric Paper-Based Analytical Devices (PADs) Backed by Chemometrics for Pd(II) Detection Alberti, Giancarla Magnaghi, Lisa Rita Iurato, Marzia Zanoni, Camilla Biesuz, Raffaela Sensors (Basel) Article This paper presents the development of cheap and selective Paper-based Analytical Devices (PADs) for selective Pd(II) determination from very acidic aqueous solutions. The PADs were obtained by impregnating two cm-side squares of filter paper with an azoic ligand, (2-(tetrazolylazo)-1,8 dihydroxy naphthalene-3,6,-disulphonic acid), termed TazoC. The so-obtained orange TazoC-PADs interact quickly with Pd(II) in aqueous solutions by forming a complex purple-blue-colored already at pH lower than 2. The dye complexes no other metal ions at such an acidic media, making TazoC-PADs highly selective to Pd(II) detection. Besides, at higher pH values, other cations, for example, Cu(II) and Ni(II), can interact with TazoC through the formation of stable and pink-magenta-colored complexes; however, it is possible to quantify Pd(II) in the presence of other cations using a multivariate approach. To this end, UV-vis spectra of the TazoC-PADs after equilibration with the metal ions solutions were registered in the 300–800 nm wavelength range. By applying Partial Least Square regression (PLS), the whole UV-vis spectra of the TazoC-PADs were related to the Pd(II) concentrations both when present alone in solution and also in the presence of Cu(II) and Ni(II). Tailored PLS models obtained with matrix-matched standard solutions correctly predicted Pd(II) concentrations in unknown samples and tap water spiked with the metal cation, making the method promising for quick and economical sensing of Pd(II). MDPI 2023-08-25 /pmc/articles/PMC10490827/ /pubmed/37687882 http://dx.doi.org/10.3390/s23177425 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Alberti, Giancarla Magnaghi, Lisa Rita Iurato, Marzia Zanoni, Camilla Biesuz, Raffaela Colorimetric Paper-Based Analytical Devices (PADs) Backed by Chemometrics for Pd(II) Detection |
title | Colorimetric Paper-Based Analytical Devices (PADs) Backed by Chemometrics for Pd(II) Detection |
title_full | Colorimetric Paper-Based Analytical Devices (PADs) Backed by Chemometrics for Pd(II) Detection |
title_fullStr | Colorimetric Paper-Based Analytical Devices (PADs) Backed by Chemometrics for Pd(II) Detection |
title_full_unstemmed | Colorimetric Paper-Based Analytical Devices (PADs) Backed by Chemometrics for Pd(II) Detection |
title_short | Colorimetric Paper-Based Analytical Devices (PADs) Backed by Chemometrics for Pd(II) Detection |
title_sort | colorimetric paper-based analytical devices (pads) backed by chemometrics for pd(ii) detection |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10490827/ https://www.ncbi.nlm.nih.gov/pubmed/37687882 http://dx.doi.org/10.3390/s23177425 |
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