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An integrated vapor source with a porous silicon wick.

Authors
Wallner-JZ; Kunt-KS; Obanionwu-H; Oborny-MC; Bergstrom-PL; Zellers-ET
Source
Phys Status Solidi A Appl Mater Sci 2007 May; 204(5):1449-1453
NIOSHTIC No.
20042744
Abstract
A micro vapor source has been developed for calibrating micro gas chromatograph (uGC) 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 uGC field deployment.
Keywords
Gas-chromatography; Vapors; Diffusion-analysis; Temperature-effects; Temperature-control; Analytical-processes; Volatiles; Organic-compounds; Laboratory-testing; Monitoring-systems; Air-samples; Author Keywords: 51.20.+d; 85.85.+j
CODEN
PSSABA
Publication Date
20070501
Document Type
Journal Article
Email Address
izheng@mtu.edu
Funding Type
Grant
Fiscal Year
2007
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-003692
Issue of Publication
5
ISSN
1862-6300
Source Name
Physica Status Solidi A, Applications and Materials Science
State
MI; NM
Performing Organization
University of Michigan, Ann Arbor
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