| Autor: |
Bin Fang, Ying-Chun Gao, Mao-Guo Li, Guang-Feng Wang |
| Jazyk: |
angličtina |
| Rok vydání: |
2004 |
| Předmět: |
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| Zdroj: |
Sensors, Vol 4, Iss 9, Pp 147-155 (2004) |
| Druh dokumentu: |
article |
| ISSN: |
1424-8220 |
| DOI: |
10.3390/s40900147 |
| Popis: |
Abstract: A novel electrode modified with silver nanoparticles was fabricated. It is found that the reducibility of silver nanoparticles is higher than for bulk silver by comparing a silver nanoparticles modified electrode with a silver micro-disk electrode. When SCN- was added, a new oxidation peak occurred and the anodic peak current of silver nanoparticles decreased. The new anodic peak current is proportional to the thiocyanate concentration in the range of 5.0×10-7~4.0×10-4 mol/L in pH 6.0 NaH2PO4-Na2HPO4 buffer solutions (PBS). The detection limit (S/N=3) is 4×10-8 mol/L. This method has been applied to the determination of saliva (smoker and non-smoker). |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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