期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1303, 期 -, 页码 76-82出版社
ELSEVIER
DOI: 10.1016/j.chroma.2013.06.025
关键词
Thermal desorption; Phthalate esters; Organophosphate esters; Gas chromatography-mass spectrometry; Gas phase; Air samples
A method based on thermal desorption-gas chromatography-mass spectrometry (TD-GC-MS) has been developed to determine four organophosphate esters, seven phthalate esters, and bis(2-ethylhexyl) adipate in the gas phase from harbour and urban air samples. The method involves the sampling of 1.5 L of air in a Tenax TA sorbent tube followed by thermal desorption (using a Tenax TA cryogenic trap) coupled to gas chromatography-mass spectrometry. The repeatability of the method expressed as %RSD (n = 3) is less than 15% and the MQLs are between 0.007 mu g m(-3) (DMP, TBP, BBP, TPP and DnOP) and 6.7 mu g m(-3) (DEHP). The method was successfully applied in two areas (urban and harbour) testing two and three points in each one, respectively. Some of these compounds were found in both urban and harbour samples. Di-(2-ethylhexyl)phthalate was the most abundant compound found in both areas at concentration levels between 6.7 mu g m(-3) and 136.4 mu g m(-3). This study demonstrates that thermal desorption is an efficient method for the determination of these semi-volatile compounds in the gas phase fraction of air samples (c) 2013 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据