Potentiometric Sensors for Iodide and Bromide Based on Pt(II)-Porphyrin

Pt(II) 5,10,15,20-tetra(4-methoxy-phenyl)-porphyrin (PtTMeOPP) was used in the construction of new ion-selective sensors. The potentiometric response characteristics (slope and selectivity) of iodide and bromide-selective electrodes based on (PtTMeOPP) metalloporphyrin in o-nitrophenyloctylether (NP...

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Autores principales: Vlascici, Dana, Plesu, Nicoleta, Fagadar-Cosma, Gheorghe, Lascu, Anca, Petric, Mihaela, Crisan, Manuela, Belean, Anca, Fagadar-Cosma, Eugenia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6068665/
https://www.ncbi.nlm.nih.gov/pubmed/30012951
http://dx.doi.org/10.3390/s18072297
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author Vlascici, Dana
Plesu, Nicoleta
Fagadar-Cosma, Gheorghe
Lascu, Anca
Petric, Mihaela
Crisan, Manuela
Belean, Anca
Fagadar-Cosma, Eugenia
author_facet Vlascici, Dana
Plesu, Nicoleta
Fagadar-Cosma, Gheorghe
Lascu, Anca
Petric, Mihaela
Crisan, Manuela
Belean, Anca
Fagadar-Cosma, Eugenia
author_sort Vlascici, Dana
collection PubMed
description Pt(II) 5,10,15,20-tetra(4-methoxy-phenyl)-porphyrin (PtTMeOPP) was used in the construction of new ion-selective sensors. The potentiometric response characteristics (slope and selectivity) of iodide and bromide-selective electrodes based on (PtTMeOPP) metalloporphyrin in o-nitrophenyloctylether (NPOE), dioctylphtalate (DOP) and dioctylsebacate (DOS) plasticized poly(vinyl chloride) membranes are compared. The best results were obtained for the membranes plasticized with DOP and NPOE. The sensors have linear responses with near-Nernstian slopes toward bromide and iodide ions and good selectivity. The membrane plasticized with NPOE was electrochemically characterized using the EIS method to determine its water absorption and the diffusion coefficient into the membrane.
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spelling pubmed-60686652018-08-07 Potentiometric Sensors for Iodide and Bromide Based on Pt(II)-Porphyrin Vlascici, Dana Plesu, Nicoleta Fagadar-Cosma, Gheorghe Lascu, Anca Petric, Mihaela Crisan, Manuela Belean, Anca Fagadar-Cosma, Eugenia Sensors (Basel) Article Pt(II) 5,10,15,20-tetra(4-methoxy-phenyl)-porphyrin (PtTMeOPP) was used in the construction of new ion-selective sensors. The potentiometric response characteristics (slope and selectivity) of iodide and bromide-selective electrodes based on (PtTMeOPP) metalloporphyrin in o-nitrophenyloctylether (NPOE), dioctylphtalate (DOP) and dioctylsebacate (DOS) plasticized poly(vinyl chloride) membranes are compared. The best results were obtained for the membranes plasticized with DOP and NPOE. The sensors have linear responses with near-Nernstian slopes toward bromide and iodide ions and good selectivity. The membrane plasticized with NPOE was electrochemically characterized using the EIS method to determine its water absorption and the diffusion coefficient into the membrane. MDPI 2018-07-16 /pmc/articles/PMC6068665/ /pubmed/30012951 http://dx.doi.org/10.3390/s18072297 Text en © 2018 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Vlascici, Dana
Plesu, Nicoleta
Fagadar-Cosma, Gheorghe
Lascu, Anca
Petric, Mihaela
Crisan, Manuela
Belean, Anca
Fagadar-Cosma, Eugenia
Potentiometric Sensors for Iodide and Bromide Based on Pt(II)-Porphyrin
title Potentiometric Sensors for Iodide and Bromide Based on Pt(II)-Porphyrin
title_full Potentiometric Sensors for Iodide and Bromide Based on Pt(II)-Porphyrin
title_fullStr Potentiometric Sensors for Iodide and Bromide Based on Pt(II)-Porphyrin
title_full_unstemmed Potentiometric Sensors for Iodide and Bromide Based on Pt(II)-Porphyrin
title_short Potentiometric Sensors for Iodide and Bromide Based on Pt(II)-Porphyrin
title_sort potentiometric sensors for iodide and bromide based on pt(ii)-porphyrin
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6068665/
https://www.ncbi.nlm.nih.gov/pubmed/30012951
http://dx.doi.org/10.3390/s18072297
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