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

In Hyoung Chang, Dong Soo Lee, Soon Ho Ock

Research output: Contribution to journalArticle

4 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)456-459
Number of pages4
JournalAnalytical and Bioanalytical Chemistry
Volume375
Issue number3
DOIs
Publication statusPublished - 2003 Feb 1

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry

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