Sensors | |
Amperometric Sensor Used for Determination of Thiocyanate with a Silver Nanoparticles Modified Electrode | |
Guang-Feng Wang1  Mao-Guo Li1  Ying-Chun Gao1  | |
[1] id="af1-sensors-04-00147">Schools of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China, Fax: +86-553-3869303, Tel: +86-553-38693 | |
关键词: Silver nanoparticles; modified electrode; thiocyanate determination; | |
DOI : 10.3390/s40900147 | |
来源: mdpi | |
【 摘 要 】
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 (
【 授权许可】
Unknown
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