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An integrated vapor source with a porous silicon wick

✍ Scribed by Wallner, J. Z. ;Kunt, K. S. ;Obanionwu, H. ;Oborny, M. C. ;Bergstrom, P. L. ;Zellers, E. T.

Book ID
105364218
Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
616 KB
Volume
204
Category
Article
ISSN
0031-8965

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✦ Synopsis

Abstract

A micro vapor source has been developed for calibrating micro gas chromatograph (μGC) systems. By utilizing a porous silicon wick in a micro diffusion system, vapor generation with excellent stability has been achieved. The source has shown uniform and repeatable vapor generation for n‐decane with less than a 0.1% variation in 9 hours, and less than a 0.5% variation in rate over 7 days. The evolution rate follows the diffusion model as expected, although the room temperature rate is higher than theoretically predicted. Equipped with a refillable reservoir, this vapor source is suitable for extended μGC field deployment. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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