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Micromachines 2017, 8(9), 259;

On-Chip Microplasmas for the Detection of Radioactive Cesium Contamination in Seawater

Institute for Micromanufacting, Louisiana Tech University, Ruston, LA 71272, USA
Author to whom correspondence should be addressed.
Received: 16 June 2017 / Revised: 4 August 2017 / Accepted: 16 August 2017 / Published: 23 August 2017
(This article belongs to the Special Issue Microplasma Devices)
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On-chip microplasmas have previously been used in designing a compact and portable device for identifying pollutants in a water sample. By exciting a liquid sample with a high energy microdischarge and recording the spectral wavelengths emitted, the individual elements in the liquid are distinguishable. In particular, this study focuses on cesium, a contaminant from nuclear incidents such as the collapse of the nuclear power plant in Fukushima, Japan. This article shows that not only can the presence of cesium be clearly determined at concentrations as low as 10 ppb, but the relative concentration contained in the sample can be determined through the discharges’ relative spectral intensity. View Full-Text
Keywords: microplasma device; plasma spectroscopy; cesium detection microplasma device; plasma spectroscopy; cesium detection

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Joffrion, J.B.; Mills, D.; Clower, W.; Wilson, C.G. On-Chip Microplasmas for the Detection of Radioactive Cesium Contamination in Seawater. Micromachines 2017, 8, 259.

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