Abstract
This paper reports graphene based, highly ion sensitive field effect transistor sensor for phosphate detection using a phosphate selective membrane. In the experiment, the shifted dirac point is measured to check the ions amount in the water. The selective membrane is synthesized by molecular imprinted polymer. The performance of sensor is tested with four different ion solutions (phosphate, sulfate, chloride and nitrate). Each solution has four different concentrations (0.05, 0.1, 1and 10 ppm). The dirac point shift from -0.08 V to -0.06 V as increasing the concentration. The detection limit and response time are 0.05 ppm and 1 min, respectively.
| Original language | English (US) |
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| Title of host publication | 21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017 |
| Publisher | Chemical and Biological Microsystems Society |
| Pages | 473-474 |
| Number of pages | 2 |
| ISBN (Electronic) | 9780692941836 |
| State | Published - Jan 1 2020 |
| Event | 21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017 - Savannah, United States Duration: Oct 22 2017 → Oct 26 2017 |
Publication series
| Name | 21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017 |
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Conference
| Conference | 21st International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2017 |
|---|---|
| Country/Territory | United States |
| City | Savannah |
| Period | 10/22/17 → 10/26/17 |
Bibliographical note
Funding Information:The authors acknowledge the assistance of fabrication and characterization from Minnesota Nano Center and the Characterization Facility at the University of Minnesota.
Publisher Copyright:
© 17CBMS-0001.
Keywords
- Graphene
- Phosphate
- Selective membrane
- Sensor