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Determination of Airborne Formaldehyde Using the Gas Chromatograph-Pulsed Discharge Electron Capture Detector  

김희갑 (강원대학교 자연과학대학 환경과학과)
박미진 (강원대학교 자연과학대학 환경과학과)
김만구 (강원대학교 자연과학대학 환경과학과)
Publication Information
Environmental Analysis Health and Toxicology / v.17, no.2, 2002 , pp. 117-123 More about this Journal
Abstract
A gas chromatographic method for the determination of airborne formaldehyde was established. In order to be highly detectable with the electron capture detector, formaldehyde was derivatized to its pentafluorobenzyl oxime form by reacting with O- (2,3,4,5,6- pentafluorobenzyl)hydroxylamine hydrochloride (PFBHA) at pH of 4.6 and temperature of 50$^{\circ}C$ for 1 hour. Air samples were collected into a Tedlar$\^$(R)/ bag followed by transferring into water contained in two impingers in series. Collection efficiency in the front trap was higher than 90％. Measurement of selected indoor and outdoor air samples showed higher formaldehyde concentrations in indoor air environments and the importance of ventilation for reducing indoor pollution.
Keywords
air; formaldehyde; gas chromatography; impinger; PFBHA;
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