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Condenser-type diffusion denuders for the collection of sulfur dioxide in a cleanroom

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Abstract

High-efficiency condenser-type diffusion denuders of cylindrical and planar geometries are described. The film condensation of water vapor onto a cooled denuder surface can be used as a method for collecting water-soluble gases. By using SO2 as the test gas, the planar design offers quantitative collection efficiency at air sampling rates up to 5 L min−1. Coupled to ion chromatography, the limit of detection (LOD) for SO2 is 0.014 ppbv with a 30-min successive analysis sequence. The method has been successfully applied to the analysis of temperature- and humidity-controlled cleanroom air.

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Authors and Affiliations

  1. Department of Chemistry, Yonsei University, 120–749, Seoul, South Korea

    In-Hyoung Chang, Dong Soo Lee & Soon-Ho Ock

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  1. In-Hyoung Chang
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  2. Dong Soo Lee
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  3. Soon-Ho Ock
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Correspondence to In-Hyoung Chang.

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Chang, IH., Lee, D.S. & Ock, SH. Condenser-type diffusion denuders for the collection of sulfur dioxide in a cleanroom. Anal Bioanal Chem 375, 456–459 (2003). https://doi.org/10.1007/s00216-002-1682-3

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  • DOI: https://doi.org/10.1007/s00216-002-1682-3

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