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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Sweeney, J. Whitney, C. Wilson, C.G. |
| Copyright Year | 2009 |
| Description | Author affiliation: Institute for Micromanufacturing, Louisiana Tech University, Ruston, LA, United States of America (Sweeney, J.; Whitney, C.; Wilson, C.G.) |
| Abstract | Plasma spectroscopic techniques can provide a quick, on-site solution for monitoring the potability of water sources. This paper reports on a new, essentially disposable ceramic microdevice that utilizes on-chip doped DC plasmas to spectroscopically analyze the atomic and molecular composition of water samples on-site. The device is fabricated on an alumina ceramic substrate, which is ideal due to its low-cost, ability to be cast into micro-structures, mechanical robustness, and insulation of high-voltage. Water sample analysis is performed in air at atmospheric pressure, greatly reducing the cost and complexity of water quality monitoring on-site. Samples are partially evaporated with on-chip thin-film Cr microheater integrated into the cathode lead. Temperature changes as large as 47 °C can be realized with 60 mA. With the device reported here, copper and aluminum impurities are detected at 100 ppm and ammonia contaminants are observed in concentrations as low as 1%. |
| Starting Page | 2005 |
| Ending Page | 2008 |
| File Size | 664691 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424445486 |
| ISSN | 19300395 |
| DOI | 10.1109/ICSENS.2009.5398300 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-10-25 |
| Publisher Place | New Zealand |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Spectroscopy Monitoring Plasma sources Plasma devices Ceramics Water resources Atmospheric-pressure plasmas Substrates Robustness Insulation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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