The University of Southampton
University of Southampton Institutional Repository

Functionalized nanoporous track-etched ?-PVDF membrane electrodes for lead(ii) determination by square wave anodic stripping voltammetry

Functionalized nanoporous track-etched ?-PVDF membrane electrodes for lead(ii) determination by square wave anodic stripping voltammetry
Functionalized nanoporous track-etched ?-PVDF membrane electrodes for lead(ii) determination by square wave anodic stripping voltammetry
Track-etched functionalized nanoporous beta-PVDF membrane electrodes, or functionalized membrane electrodes (FMEs), are electrodes made from track-etched, poly(acrylic acid) (PAA) functionalized nanoporous beta-poly(vinylidene fluoride) (beta-PVDF) membranes with thin porous Au films sputtered on each side as electrodes. In order to form the P-PVDF nanoporous membranes, beta-PVDF films are irradiated by swift heavy ions. After irradiation, radical tracks are left in the membranes. Etching removes some of the radical tracks revealing nanopores. The remaining radicals initiate radio grafting of PAA from the pore walls of the nanoporous beta-PVDF. PAA is a cation exchange polymer that adsorbs metal ions, such as Pb(2+), from aqueous solutions thus concentrating the ions into the membrane. After a calibrated time, the FME is transferred to an electrochemical cell for analysis. A negative potential is applied to the Au film of the FME for a set time to reduce the adsorbed ions onto the Au film working electrode. Square-wave anodic stripping voltammetry was performed on the FME to determine the Pb(2+) ion concentration in the original solution based on calibration. The zero current intercept of the calibration for Pb(2+) is 0.13 ppb (mu g L(-1)) and three times the sample blank deviation (3S/N) is 0.050 ppb
1351-1359
Bessbousse, Haad
abd17817-7f73-461d-819d-0dc4a1937f00
Nandhakumar, Iris
e9850fe5-1152-4df8-8a26-ed44b5564b04
Decker, Maxime
2af1cfee-ce94-4804-a1e1-6b5f89dbaeb0
Barsbay, Murat
bb2b2e70-db2c-4a23-a312-2edf81c35949
Cuscito, Olivia
8f504c40-c982-418f-b25c-518e6fb74773
Lairez, Didier
7f91e620-a831-48d9-a9a1-fc4918edcb07
Clochard, Marie-Claude
ddd81308-8912-4d61-9988-c62e929b41da
Wade, Travis. L.
5a906d5e-584a-4d34-87e6-e4f76c020fc6
Bessbousse, Haad
abd17817-7f73-461d-819d-0dc4a1937f00
Nandhakumar, Iris
e9850fe5-1152-4df8-8a26-ed44b5564b04
Decker, Maxime
2af1cfee-ce94-4804-a1e1-6b5f89dbaeb0
Barsbay, Murat
bb2b2e70-db2c-4a23-a312-2edf81c35949
Cuscito, Olivia
8f504c40-c982-418f-b25c-518e6fb74773
Lairez, Didier
7f91e620-a831-48d9-a9a1-fc4918edcb07
Clochard, Marie-Claude
ddd81308-8912-4d61-9988-c62e929b41da
Wade, Travis. L.
5a906d5e-584a-4d34-87e6-e4f76c020fc6

Bessbousse, Haad, Nandhakumar, Iris, Decker, Maxime, Barsbay, Murat, Cuscito, Olivia, Lairez, Didier, Clochard, Marie-Claude and Wade, Travis. L. (2011) Functionalized nanoporous track-etched ?-PVDF membrane electrodes for lead(ii) determination by square wave anodic stripping voltammetry. Analytical Methods, 3 (6), 1351-1359. (doi:10.1039/c1ay05038a).

Record type: Article

Abstract

Track-etched functionalized nanoporous beta-PVDF membrane electrodes, or functionalized membrane electrodes (FMEs), are electrodes made from track-etched, poly(acrylic acid) (PAA) functionalized nanoporous beta-poly(vinylidene fluoride) (beta-PVDF) membranes with thin porous Au films sputtered on each side as electrodes. In order to form the P-PVDF nanoporous membranes, beta-PVDF films are irradiated by swift heavy ions. After irradiation, radical tracks are left in the membranes. Etching removes some of the radical tracks revealing nanopores. The remaining radicals initiate radio grafting of PAA from the pore walls of the nanoporous beta-PVDF. PAA is a cation exchange polymer that adsorbs metal ions, such as Pb(2+), from aqueous solutions thus concentrating the ions into the membrane. After a calibrated time, the FME is transferred to an electrochemical cell for analysis. A negative potential is applied to the Au film of the FME for a set time to reduce the adsorbed ions onto the Au film working electrode. Square-wave anodic stripping voltammetry was performed on the FME to determine the Pb(2+) ion concentration in the original solution based on calibration. The zero current intercept of the calibration for Pb(2+) is 0.13 ppb (mu g L(-1)) and three times the sample blank deviation (3S/N) is 0.050 ppb

Full text not available from this repository.

More information

Published date: June 2011

Identifiers

Local EPrints ID: 350985
URI: https://eprints.soton.ac.uk/id/eprint/350985
PURE UUID: 7608a02d-0804-4913-8b3b-ade3f22e8530
ORCID for Iris Nandhakumar: ORCID iD orcid.org/0000-0002-9668-9126

Catalogue record

Date deposited: 12 Apr 2013 09:14
Last modified: 14 Jul 2018 00:35

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×