Enhanced Electroanalytical Sensitivity via Interface Miniaturisation: Ion Transfer Voltammetry at an Array of Nanometre Liquid–Liquid Interfaces

The benefit of miniaturization towards the nanoscale of electroanalytical systems was evaluated by assessment of the sensitivity of the response. Ion transfer voltammetry across the interface between two immiscible electrolyte solutions (ITIES) was employed as the basis for detection of nonredoxacti...

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Main Authors: Scanlon, M., Arrigan, Damien
Format: Journal Article
Published: Wiley - VCH Verlag GmbH & Co. KGaA 2011
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/20154
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author Scanlon, M.
Arrigan, Damien
author_facet Scanlon, M.
Arrigan, Damien
author_sort Scanlon, M.
building Curtin Institutional Repository
collection Online Access
description The benefit of miniaturization towards the nanoscale of electroanalytical systems was evaluated by assessment of the sensitivity of the response. Ion transfer voltammetry across the interface between two immiscible electrolyte solutions (ITIES) was employed as the basis for detection of nonredoxactive ions. The analytical sensitivity increased on miniaturisation of the interface from millimetre-, to micrometre-, to nanometre-scale, with an improvement in sensitivity of more than three orders of magnitude. This is due to the enhanced mass transport via convergent diffusion as the size of the ITIES is minimised. These results illustrate the benefit of miniaturisation of electrochemical detection methods to the nanoscale.
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institution Curtin University Malaysia
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publishDate 2011
publisher Wiley - VCH Verlag GmbH & Co. KGaA
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spelling curtin-20.500.11937-201542017-09-13T15:59:26Z Enhanced Electroanalytical Sensitivity via Interface Miniaturisation: Ion Transfer Voltammetry at an Array of Nanometre Liquid–Liquid Interfaces Scanlon, M. Arrigan, Damien Nanopore Liquid–liquid interface Nanointerface ITIES Voltammetry The benefit of miniaturization towards the nanoscale of electroanalytical systems was evaluated by assessment of the sensitivity of the response. Ion transfer voltammetry across the interface between two immiscible electrolyte solutions (ITIES) was employed as the basis for detection of nonredoxactive ions. The analytical sensitivity increased on miniaturisation of the interface from millimetre-, to micrometre-, to nanometre-scale, with an improvement in sensitivity of more than three orders of magnitude. This is due to the enhanced mass transport via convergent diffusion as the size of the ITIES is minimised. These results illustrate the benefit of miniaturisation of electrochemical detection methods to the nanoscale. 2011 Journal Article http://hdl.handle.net/20.500.11937/20154 10.1002/elan.201000667 Wiley - VCH Verlag GmbH & Co. KGaA restricted
spellingShingle Nanopore
Liquid–liquid interface
Nanointerface
ITIES
Voltammetry
Scanlon, M.
Arrigan, Damien
Enhanced Electroanalytical Sensitivity via Interface Miniaturisation: Ion Transfer Voltammetry at an Array of Nanometre Liquid–Liquid Interfaces
title Enhanced Electroanalytical Sensitivity via Interface Miniaturisation: Ion Transfer Voltammetry at an Array of Nanometre Liquid–Liquid Interfaces
title_full Enhanced Electroanalytical Sensitivity via Interface Miniaturisation: Ion Transfer Voltammetry at an Array of Nanometre Liquid–Liquid Interfaces
title_fullStr Enhanced Electroanalytical Sensitivity via Interface Miniaturisation: Ion Transfer Voltammetry at an Array of Nanometre Liquid–Liquid Interfaces
title_full_unstemmed Enhanced Electroanalytical Sensitivity via Interface Miniaturisation: Ion Transfer Voltammetry at an Array of Nanometre Liquid–Liquid Interfaces
title_short Enhanced Electroanalytical Sensitivity via Interface Miniaturisation: Ion Transfer Voltammetry at an Array of Nanometre Liquid–Liquid Interfaces
title_sort enhanced electroanalytical sensitivity via interface miniaturisation: ion transfer voltammetry at an array of nanometre liquid–liquid interfaces
topic Nanopore
Liquid–liquid interface
Nanointerface
ITIES
Voltammetry
url http://hdl.handle.net/20.500.11937/20154