Determination of Trace Metals by Anodic Stripping Voltammetry Using a Carbon Nanotube Tower Electrode
Anodic stripping voltammetry (ASV) trace detection of the heavy metals ions Pb2+, Cd2+, Cu2+ and Zn2+ was done at highly aligned multi‐wall carbon nanotube tower electrodes (CNT tower electrodes). The CNT tower electrode is one type of CNT array that consists of millions of ordered super long CNTs....
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Published in | Electroanalysis (New York, N.Y.) Vol. 23; no. 5; pp. 1252 - 1259 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Weinheim
WILEY-VCH Verlag
01.05.2011
WILEY‐VCH Verlag |
Subjects | |
Online Access | Get full text |
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Summary: | Anodic stripping voltammetry (ASV) trace detection of the heavy metals ions Pb2+, Cd2+, Cu2+ and Zn2+ was done at highly aligned multi‐wall carbon nanotube tower electrodes (CNT tower electrodes). The CNT tower electrode is one type of CNT array that consists of millions of ordered super long CNTs. Osteryoung square‐wave stripping voltammetry was used for the stripping step. This electrode material shows good resolution for individual detection of these four metal ions with calculated detection limits of 12 nM, 25 nM, 44 nM and 67 nM for Pb2+, Cd2+, Cu2+ and Zn2+, respectively, for a deposition time of 120 s. The detectable limit was as low as 0.5 nM for a 10 min deposition. |
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Bibliography: | ark:/67375/WNG-RF2C3812-H ArticleID:ELAN201000674 Necati Kaval istex:E27308BBA3E90170FE3369BAA5F19D13E2960864 National Science Foundation (NSF) - No. NSF ERC 0812348 Center for Chemical Sensors & Biosensors, University of Cincinnati ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 1040-0397 1521-4109 1521-4109 |
DOI: | 10.1002/elan.201000674 |