Electrochemical detection of Mn(II) and Cd(II) mediated by carbon nanotubes and nanotubes/Li+ modified glassy carbon electrode.
Glassy carbon electrode (GCE) was modified with carbon nanotubes (CNT) with andwithout a Li+ dopant by using a mechanical attachment method; CNT/Li+/GCE was used as twoworking electrodes, by doping CNT/GCE with Li+. The nano-structure of the electrodes showedindividual voltammetrics of Mn2+ with two...
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| Format: | Article |
| Language: | English English |
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International Frequency Sensor Association Publishing
2010
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| Online Access: | http://psasir.upm.edu.my/id/eprint/24632/ http://psasir.upm.edu.my/id/eprint/24632/1/Electrochemical%20detection%20of%20Mn.pdf |
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| author | Radhi, Muhammed Mizher Tan, Wee Tee Ab. Rahman, Mohamad Zaki Kassim, Anuar |
| author_facet | Radhi, Muhammed Mizher Tan, Wee Tee Ab. Rahman, Mohamad Zaki Kassim, Anuar |
| author_sort | Radhi, Muhammed Mizher |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Glassy carbon electrode (GCE) was modified with carbon nanotubes (CNT) with andwithout a Li+ dopant by using a mechanical attachment method; CNT/Li+/GCE was used as twoworking electrodes, by doping CNT/GCE with Li+. The nano-structure of the electrodes showedindividual voltammetrics of Mn2+ with two reduction peaks at +800 and +100 mV. Two reduction peaks for Cd2+ appeared at +600 V and -800mV with one oxidation peak at -600 mV. The reductioncurrent of Mn2+ and the redox current of Cd2+ on the CNT/Li+/GCE were largely influenced by a lowconcentration comparison with GCE and CNT/GCE. It showed that the detection of Mn2+ and Cd2+ byCNT/Li+/GCE in an aqueous solution of 0.1M KCL, with a relative standard deviation (RSD) of theelectrode being very good CNT/Li+/GCE. The determination of efficiency for the best modifiedelectrode was detected for Mn2+ and Cd2+
on CNT/Li+/GCE; it was also found to have a wide linear range and good repeatability with a relative standard deviation (RSD) of ±1.9 % when this electrodewas used and the limit of detection was found to be 10-4 to 10-3 mM of Mn2+ and 10-4 to 10-2 mM of Cd2+, while the range of detection was found to be 3x10-4 to 10-3 mM and 10-3 to 10-2
mM when usingthe CNT/GCE for Mn2+ and Cd2+, respectively, with an RSD of ±3.3 % for Mn2+ and Cd2+.
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| first_indexed | 2025-11-15T08:41:16Z |
| format | Article |
| id | upm-24632 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T08:41:16Z |
| publishDate | 2010 |
| publisher | International Frequency Sensor Association Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-246322015-11-02T03:39:07Z http://psasir.upm.edu.my/id/eprint/24632/ Electrochemical detection of Mn(II) and Cd(II) mediated by carbon nanotubes and nanotubes/Li+ modified glassy carbon electrode. Radhi, Muhammed Mizher Tan, Wee Tee Ab. Rahman, Mohamad Zaki Kassim, Anuar Glassy carbon electrode (GCE) was modified with carbon nanotubes (CNT) with andwithout a Li+ dopant by using a mechanical attachment method; CNT/Li+/GCE was used as twoworking electrodes, by doping CNT/GCE with Li+. The nano-structure of the electrodes showedindividual voltammetrics of Mn2+ with two reduction peaks at +800 and +100 mV. Two reduction peaks for Cd2+ appeared at +600 V and -800mV with one oxidation peak at -600 mV. The reductioncurrent of Mn2+ and the redox current of Cd2+ on the CNT/Li+/GCE were largely influenced by a lowconcentration comparison with GCE and CNT/GCE. It showed that the detection of Mn2+ and Cd2+ byCNT/Li+/GCE in an aqueous solution of 0.1M KCL, with a relative standard deviation (RSD) of theelectrode being very good CNT/Li+/GCE. The determination of efficiency for the best modifiedelectrode was detected for Mn2+ and Cd2+ on CNT/Li+/GCE; it was also found to have a wide linear range and good repeatability with a relative standard deviation (RSD) of ±1.9 % when this electrodewas used and the limit of detection was found to be 10-4 to 10-3 mM of Mn2+ and 10-4 to 10-2 mM of Cd2+, while the range of detection was found to be 3x10-4 to 10-3 mM and 10-3 to 10-2 mM when usingthe CNT/GCE for Mn2+ and Cd2+, respectively, with an RSD of ±3.3 % for Mn2+ and Cd2+. International Frequency Sensor Association Publishing 2010 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/24632/1/Electrochemical%20detection%20of%20Mn.pdf Radhi, Muhammed Mizher and Tan, Wee Tee and Ab. Rahman, Mohamad Zaki and Kassim, Anuar (2010) Electrochemical detection of Mn(II) and Cd(II) mediated by carbon nanotubes and nanotubes/Li+ modified glassy carbon electrode. Sensors & Transducers Journal, 122 (11). pp. 28-35. ISSN 1726-5479 http://www.sensorsportal.com/ English |
| spellingShingle | Radhi, Muhammed Mizher Tan, Wee Tee Ab. Rahman, Mohamad Zaki Kassim, Anuar Electrochemical detection of Mn(II) and Cd(II) mediated by carbon nanotubes and nanotubes/Li+ modified glassy carbon electrode. |
| title | Electrochemical detection of Mn(II) and Cd(II) mediated by carbon nanotubes and nanotubes/Li+ modified glassy carbon electrode. |
| title_full | Electrochemical detection of Mn(II) and Cd(II) mediated by carbon nanotubes and nanotubes/Li+ modified glassy carbon electrode. |
| title_fullStr | Electrochemical detection of Mn(II) and Cd(II) mediated by carbon nanotubes and nanotubes/Li+ modified glassy carbon electrode. |
| title_full_unstemmed | Electrochemical detection of Mn(II) and Cd(II) mediated by carbon nanotubes and nanotubes/Li+ modified glassy carbon electrode. |
| title_short | Electrochemical detection of Mn(II) and Cd(II) mediated by carbon nanotubes and nanotubes/Li+ modified glassy carbon electrode. |
| title_sort | electrochemical detection of mn(ii) and cd(ii) mediated by carbon nanotubes and nanotubes/li+ modified glassy carbon electrode. |
| url | http://psasir.upm.edu.my/id/eprint/24632/ http://psasir.upm.edu.my/id/eprint/24632/ http://psasir.upm.edu.my/id/eprint/24632/1/Electrochemical%20detection%20of%20Mn.pdf |