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

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

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Analytical Methods Vol - 3 Issue - 5

Analytical Methods Vol - 3 Issue - 4

Analytical Methods Vol - 3 Issue - 3

Analytical Methods Vol - 3 Issue - 2

Analytical Methods Vol -2

Analytical Methods Vol -1

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

Content Provider	Royal Society of Chemistry (RSC)
Author	Nandhakumar, Iris Decker, Maxime Wade, Travis. L. Bessbousse, Haad Barsbay, Murat Clochard, Marie-Claude Lairez, Didier Cuscito, Olivia
Copyright Year	2011
Abstract	Track-etched functionalized nanoporous β-PVDF membrane electrodes, or functionalized membrane electrodes (FMEs), are electrodes made from track-etched, poly(acrylic acid) (PAA) functionalized nanoporous β-poly(vinylidene fluoride) (β-PVDF) membranes with thin porous Au films sputtered on each side as electrodes. In order to form the β-PVDF nanoporous membranes, β-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 β-PVDF. PAA is a cation exchange polymer that adsorbs metal ions, such as Pb2+, 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 Pb2+ ion concentration in the original solution based on calibration. The zero current intercept of the calibration for Pb2+ is 0.13 ppb (μg L−1) and three times the sample blank deviation (3S/N) is 0.050 ppb.
Starting Page	1351
Ending Page	1359
Page Count	9
File Format	HTM / HTML PDF
ISSN	17599660
Volume Number	3
Issue Number	6
Journal	Analytical Methods
DOI	10.1039/c1ay05038a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	PAA Acid Swift heavy ion Electrochemical stripping analysis Electrochemical cell Ion Polymer 1,1-Difluoroethylene Working electrode
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Engineering Chemical Engineering

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