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

In Hyoung Chang; Dong Soo Lee; Soon Ho Ock

doi:10.1007/s00216-002-1682-3

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

In Hyoung Chang, Dong Soo Lee, Soon Ho Ock

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	456-459
Number of pages	4
Journal	Analytical and Bioanalytical Chemistry
Volume	375
Issue number	3
DOIs	https://doi.org/10.1007/s00216-002-1682-3
Publication status	Published - 2003 Feb

All Science Journal Classification (ASJC) codes

Analytical Chemistry
Biochemistry

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10.1007/s00216-002-1682-3

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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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AU - Ock, Soon Ho

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

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