Plasticizer-free and pH-independent ion-selective optode films based on a solvatochromic dye

Plasticizer-free and pH-independent ion-selective optode films based on a solvatochromic dye

A layer of a solvatochromic dye, an ionophore, and an ion-exchanger deposited on a Nylon membrane enables highly selective colorimetric and fluorometric ion sensing. This new platform does not suffer from interference from the sample pH and does not require a plasticizer to dissolve the sensing chem...

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Veröffentlicht in:Analytical methods 2020-05, Vol.12 (2), p.2547-255
Hauptverfasser: Wang, Xuewei, Zhou, Yang, Decker, Vanessa, Meyerhoff, Mark, Sun, Meng, Cui, Yu
Format: Artikel
Sprache:eng
Schlagworte:
Colorimetry
Dyes
pH effects
Plasticizers
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Beschreibung
Zusammenfassung:A layer of a solvatochromic dye, an ionophore, and an ion-exchanger deposited on a Nylon membrane enables highly selective colorimetric and fluorometric ion sensing. This new platform does not suffer from interference from the sample pH and does not require a plasticizer to dissolve the sensing chemicals. A layer of a solvatochromic dye, an ionophore, and an ion-exchanger deposited on a Nylon membrane enables highly selective colorimetric and fluorometric ion sensing.
ISSN:1759-9660
1759-9679
DOI:10.1039/d0ay00439a