Abstract
A novel ultrasensitive micro sensor for the detection of trace mercury (II) is designed and fabricated by depositing mixture of gold nanoparticles (Au NPs) and graphene nanosheets on a gold electrode surface by layer-by-layer self-assembled (LBL SA) technique. The sensor's performance was enhanced greatly in determination of Hg (II) using anodic stripping voltammetry (ASV) due to unique properties of graphene nanosheets, as well as uniformly distributed gold nanoparticles. Eventually, this sensor's limit of detection (LOD) could be derived as 0.361 ppb, with a sensitivity of 0.958 μA/ppb.
| Original language | English (US) |
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| Title of host publication | 20th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2016 |
| Publisher | Chemical and Biological Microsystems Society |
| Pages | 1104-1105 |
| Number of pages | 2 |
| ISBN (Electronic) | 9780979806490 |
| State | Published - 2016 |
| Event | 20th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2016 - Dublin, Ireland Duration: Oct 9 2016 → Oct 13 2016 |
Publication series
| Name | 20th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2016 |
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Other
| Other | 20th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2016 |
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| Country/Territory | Ireland |
| City | Dublin |
| Period | 10/9/16 → 10/13/16 |
Bibliographical note
Funding Information:This work was partly supported by State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University.
Keywords
- Gold nanoparticles
- Graphene
- Layer-by-layer self-assembly
- Mercury ions sensor