Detection Of Trace Heavy Metal Ions By Anodic Stripping Voltamettry Using L-Cysteine Functionalized Carbon Nanotubes Paste Electrode
The development and application of the L-cysteine functionalized carbon nanotubes paste electrode (Cys-CNTPE) biosensor for the detection of lead ion (Pb2+) and cadmium ion (Cd2+) in the aqueous system are described. L-cysteine was covalently attached to multi-walled carbon nanotubes (MWCNTs) via N-...
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| Format: | Thesis |
| Language: | English |
| Published: |
2012
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| Subjects: | |
| Online Access: | http://eprints.usm.my/44915/1/TAN%20CHIN%20WEI.pdf |
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| Summary: | The development and application of the L-cysteine functionalized carbon nanotubes paste electrode (Cys-CNTPE) biosensor for the detection of lead ion (Pb2+) and cadmium ion (Cd2+) in the aqueous system are described. L-cysteine was covalently attached to multi-walled carbon nanotubes (MWCNTs) via N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide-N-hydroxysuccinimide (EDC-NHS) carbodiimide coupling as a recognition element for its high metal-chelating ability towards Pb2+ and Cd2+. The covalent attachment of L-cysteine on MWCNTs was verified with the results from Fourier Transform Infrared Spectroscopy (FTIR) characterization. |
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