Citation
Yap, Wing Fen and Mat Yunus , Wan Mahmood and Yusof, Nor Azah
(2011)
Detection of mercury and copper ions using surface plasmon resonance optical sensor.
Sensors and Materials, 23 (6).
pp. 325-334.
ISSN 0914-4935
Abstract
Mercury and copper ions, Hg2+ and Cu2+, can be detected by measuring surface plasmon resonance signals with a thin chitosan layer deposited on a gold film. An amount of 0.55 ml of chitosan cross-linked glutaraldehyde solution was spin coated onto a glass cover slip at 6000 rev./min for 30 s. Changes in the resonance angle (Δθ) are directly proportional to the concentration of heavy metal ions in solution (0.5–100 ppm). The sensitivities to Hg2+ and Cu2+ are 0.00743 and 0.00654 ppm−1, respectively. The gold/chitosan interface is highly sensitive to Hg2+ and Cu2+ with detection limits as low as 500 ppb.
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Official URL or Download Paper: http://www.myu-inc.jp/myukk/
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Additional Metadata
| Item Type: | Article |
|---|---|
| Divisions: | Faculty of Science |
| Publisher: | Scientific Publishing Division Myu |
| Keywords: | Surface plasmon resonance; Mercury ion and copper ions Chitosan; Glutaraldehyde. |
| Depositing User: | Nur Farahin Ramli |
| Date Deposited: | 13 Aug 2013 02:31 |
| Last Modified: | 27 Oct 2015 04:54 |
| URI: | http://psasir.upm.edu.my/id/eprint/25003 |
| Statistic Details: | View Download Statistic |
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