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Proceedings Paper

Microfluidics in environmental monitoring: liquid microsamples by an in-torch vaporization: microplasma device (ITV-MPD)
Author(s): Kara E. Johnson; William Vander Wilp; Vassili Karanassios
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Paper Abstract

Among other advantages over their traditional, full-size counterparts, micro-plasmas present the possibility of cost savings due to a reduction in the flow-rate of expensive plasma support gases such as argon or helium. Despite their advantages, micro-plasmas are not often used because they cannot handle the relatively large sample loads produced by the traditional pneumatic nebulization sample introduction systems typically used in full-size plasmas when analyzing liquid samples. This paper describes steps taken to couple an in-torch vaporization (ITV) "dry" sample introduction system to a dc micro-plasma (which has been designed around a micro-fluidics micro-channel) for use in environmental analysis of liquid micro-samples by atomic emission spectrometry (AES).

Paper Details

Date Published: 26 February 2001
PDF: 6 pages
Proc. SPIE 4205, Advanced Environmental and Chemical Sensing Technology, (26 February 2001); doi: 10.1117/12.417467
Show Author Affiliations
Kara E. Johnson, Univ. of Waterloo (United States)
William Vander Wilp, Univ. of Waterloo (Canada)
Vassili Karanassios, Univ. of Waterloo (Canada)


Published in SPIE Proceedings Vol. 4205:
Advanced Environmental and Chemical Sensing Technology
Tuan Vo-Dinh; Stephanus Buettgenbach, Editor(s)

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