Dithizone Modified Gold Nanoparticles Films as Solid Contact for Cu(2+) Ion-Selective Electrodes

Gold nanoparticles surface modified with dithizone were applied as dedicated transducer in ion-selective electrodes. The presence of a dithizone modified gold nanoparticle layer beneath the ion-selective membrane enables tailoring of copper ion fluxes in all-solid-state copper selective potentiometr...

Full description

Saved in:
Bibliographic Details
Published in:Electroanalysis (New York, N.Y.) N.Y.), 2013, Vol.25 (1), p.141-146
Main Authors: Woznica, Emilia, Wojcik, Michal M, Mieczkowski, Jozef, Maksymiuk, Krzysztof, Michalska, Agata
Format: Article
Language:English
Subjects:
Contact
Copper
COPPER IONS
ELECTRODES
FLUXES
Gold
MEMBRANES
Nanoparticles
PARTICLES
TRANSDUCERS
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Gold nanoparticles surface modified with dithizone were applied as dedicated transducer in ion-selective electrodes. The presence of a dithizone modified gold nanoparticle layer beneath the ion-selective membrane enables tailoring of copper ion fluxes in all-solid-state copper selective potentiometric electrodes. Thus, depending on the pretreat-ment of the modified gold nanoparticle layer, different potentiometric responses can be obtained: from typical for systems with lowered activity of primary ions at the back side of the membrane (with super-Nernstian slope region), through low detection limit to classical ones.
ISSN:1040-0397
DOI:10.1002/elan.201200385