Development of an automated monitoring system for various gas-phase organic carbonyls in ambient air

Frank Schuette, Young Soon Park, Dong Soo Lee

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

An automated monitoring system for various C1 to C5 gas-phase organic carbonyls in ambient air is described. The system consists of a parallel plate diffusion scrubber (PPDS), which is coupled with a high-performance liquid chromatography-ultraviolet (HPLC-UV) system using an automated injection valve. Compared with an annular diffusion scrubber (DS) employed so far for gas-phase carbonyl monitoring, PPDS shows an improved collection efficiency for formaldehyde, acetaldehyde, propionaldehyde, and acetone with >97% at an airflow rate of 0.5 L/min. High gas-liquid concentration ratios of PPDS and an optimised HPLC-UV system allow limits of detection (LOD) in a range of 80-500 pptv. A low liquid hold-up volume of the PPDS results in a short response time of about 10 min. Additionally, the optimised analysis time for 13 carbonyl compounds containing calibration standard enables brief measurement intervals of 25 min. The developed PPDS-HPLC system shows its reliability from urban site monitoring in Seoul, South Korea.

Original languageEnglish
Pages (from-to)355-365
Number of pages11
JournalInternational Journal of Environmental Analytical Chemistry
Volume84
Issue number5
DOIs
Publication statusPublished - 2004 Apr 15

Fingerprint

scrubbers
Scrubbers
monitoring system
ambient air
Gases
Air
gases
air
Monitoring
monitoring
gas
high performance liquid chromatography
High Pressure Liquid Chromatography
High performance liquid chromatography
liquid chromatography
carbonyl compound
carbonyl compounds
Carbonyl compounds
Republic of Korea
liquid

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Environmental Chemistry
  • Water Science and Technology
  • Waste Management and Disposal
  • Soil Science
  • Pollution
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

Cite this

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abstract = "An automated monitoring system for various C1 to C5 gas-phase organic carbonyls in ambient air is described. The system consists of a parallel plate diffusion scrubber (PPDS), which is coupled with a high-performance liquid chromatography-ultraviolet (HPLC-UV) system using an automated injection valve. Compared with an annular diffusion scrubber (DS) employed so far for gas-phase carbonyl monitoring, PPDS shows an improved collection efficiency for formaldehyde, acetaldehyde, propionaldehyde, and acetone with >97{\%} at an airflow rate of 0.5 L/min. High gas-liquid concentration ratios of PPDS and an optimised HPLC-UV system allow limits of detection (LOD) in a range of 80-500 pptv. A low liquid hold-up volume of the PPDS results in a short response time of about 10 min. Additionally, the optimised analysis time for 13 carbonyl compounds containing calibration standard enables brief measurement intervals of 25 min. The developed PPDS-HPLC system shows its reliability from urban site monitoring in Seoul, South Korea.",
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Development of an automated monitoring system for various gas-phase organic carbonyls in ambient air. / Schuette, Frank; Park, Young Soon; Lee, Dong Soo.

In: International Journal of Environmental Analytical Chemistry, Vol. 84, No. 5, 15.04.2004, p. 355-365.

Research output: Contribution to journalArticle

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