Derermination of Aldehydes in Indoor Air by Passive Tube with Silica Gel Coated with O-(2, 3, 4, 5, 6-pentafluorobenzyl) hydroxylamine

Autor:	Sumio Goto, Setsuko Setsuda, Yasuaki Mori, Hidetsuru Matsushita, Satoshi Nakai, Sukeo Onodera
Rok vydání:	1999
Předmět:	Detection limit chemistry.chemical_compound Hydroxylamine Chromatography Indoor air quality Chemistry Silica gel Health Toxicology and Mutagenesis Acetaldehyde Formaldehyde Tube (fluid conveyance) Toxicology Derivatization
Zdroj:	Journal of Health Science. 45:105-110
ISSN:	1347-5207 1344-9702
DOI:	10.1248/jhs.45.105
Popis:	The easy and quick determination method of aldehydes as hazardous air pollutants in indoor air by use of a passive tube packed with silica gel coated with O-(2, 3, 4, 5, 6-pentafluorobenzyl) hydroxylamine (PFBOA) was investigated. The analytical procedure consists of the following 3 steps : concentration and derivatization of aldehydes in sample air by the passive tube, desorption of PFBOA-derivatives of aldehydes from an adsorbent with cyclohexane and determination of PFBOA-derivatives of aldehydes by GC-MS analysis. The diffusive uptake rates of aldehydes were calculated using the obtained data from both active and passive tube methods applied to some newly-built ferroconcrete uninhabited houses and single family houses. The rates of formaldehyde and acetaldehyde were 1.983±0.254ml/min (n=25, R.S.D. 12.8%) and 1.690±0.373ml/min (n=24, R.S.D. 22.0%), respectively. The detection limit of formaldehyde in indoor air by the passive tube method was 0.0156mg/m3 for 24h air sampling, and that of acetaldehyde was 0.0382mg/m3. The PFBOA passive tube method was applied to the determination of aldehydes in newly-built ferroconcrete uninhabited houses, and sufficient results were obtained.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6dc50037e3227d952909c8a94677d691 https://doi.org/10.1248/jhs.45.105 Zobrazit plný text záznamu