Abstract
In this study, an investigation was carried out on recovery tests of thermal desorption and solvent extraction methods for the analysis of toluene, xylene, ethylbenzene, styrene, p-dichlorobenzene, tetradecane, 2-ethyl-1-hexanol (2EH), 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate (TPMI), and 2,2,4-trimethyl-1,3-pentanediol diisobutyrate (TPDI) in indoor air connected with or without a dehumidification tube at high humidity conditions. All the volatile organic compounds (VOCs) recovered almost well without a dehumidification tube. On the other hand, several VOCs, especially tetradecane, 2EH, TPMI, and TPDI, were seen to have low recoveries regarding the thermal desorption and solvent extraction methods when connected with a dehumidification tube. It was thought that these VOCs were adsorbed onto the dehumidification tube and, therefore, affected the quantitation of the VOCs in the indoor air.
