Detection of mercury and copper ions using surface plasmon resonance optical sensor.
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...
Saved in:
| Main Authors: | , , |
|---|---|
| 格式: | Article |
| 語言: | English English |
| 出版: |
Scientific Publishing Division Myu
2011
|
| 在線閱讀: | http://psasir.upm.edu.my/id/eprint/25003/1/Detection%20of%20mercury%20and%20copper%20ions%20using%20surface%20plasmon%20resonance%20optical%20sensor.pdf http://psasir.upm.edu.my/id/eprint/25003/ http://www.myu-inc.jp/myukk/ |
| 標簽: |
添加標簽
沒有標簽, 成為第一個標記此記錄!
|
| 總結: | 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. |
|---|