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

Xuewei WangYang ZhouVanessa DeckerMark E MeyerhoffMeng SunYu Cui

Published in: Analytical methods : advancing methods and applications (2021)

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.

Keyphrases

gold nanoparticles
highly efficient
aqueous solution
high throughput
hydrogen peroxide
fluorescent probe
mass spectrometry
living cells
single cell