Simultaneous extraction of di(2-ethylhexyl) phthalate and nonionic surfactants from house dust - Concentrations in floor dust from 15 Danish schools
Simultaneous extraction of di(2-ethylhexyl) phthalate and nonionic surfactants from house dust - Concentrations in floor dust from 15 Danish schools
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DOI：
10.1016/s0021-9673(02)02007-1
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发表时间：
2003-02-07
影响因子：
4.1
通讯作者：
Bowadt, S
中科院分区：
文献类型：
--
作者：
Clausen, PA;Bille, RLL;Bowadt, S
比较了静态萃取、超临界流体萃取（SFE）、加压液体萃取（PLE）和索氏萃取（Soxhlet）4种方法同时萃取室内灰尘中邻苯二甲酸二（2-乙基己基）酯（DEHP）和非离子表面活性剂的效果。使用来自真空吸尘器集尘袋的均质化办公室地板粉尘（“标准粉尘”）进行评价。一部分提取物用于LC-MS分析非离子表面活性剂，另一部分用于GC-MS分析DEHP。所有方法的DEHP提取率相当，而SFE和PLE是非离子表面活性剂最有效的提取技术。PLE提取被认为是最合适的作为一个常规的方法，同时提取两种类型的化合物，并被用于现场研究的地板灰尘从15所丹麦学校。学校灰尘样本中DEHP的平均浓度比不同国家家庭灰尘的其他研究中观察到的高出4倍。非离子表面活性剂的浓度比肥皂和直链烷基苯磺酸盐低一个数量级，在其他研究中测量的办公室和其他公共建筑的地板灰尘。然而，这是第一次在房屋灰尘中发现非离子表面活性剂。(C)2002 Elsevier Science B. V.保留所有权利。
Static extraction, supercritical fluid extraction (SFE), pressurized liquid extraction (PLE) and Soxhlet extraction were compared for simultaneous extraction of di(2-ethylhexyl) phthalate (DEHP) and nonionic surfactants from house dust. Homogenized office floor dust from a vacuum cleaner dust bag ("standard dust") was used for the evaluation. One portion of the extracts was used for analysis of nonionic surfactants with LC-MS and another portion was used for DEHP analysis with GC-MS. The extraction yield of DEHP was comparable for all the methods whereas SFE and PLE were the most efficient extraction techniques for the nonionic surfactants. The PLE extraction was found most suitable as a routine method for simultaneous extraction of both types of compounds and was used in a field study of floor dust from 15 Danish schools. The mean concentration of DEHP in the school dust samples was similar to4 times higher than observed in other studies of dust from homes in different countries. The concentrations of nonionic surfactants were one order of magnitude lower than soap and linear alkylbenzene sulfonates measured in other studies of floor dust from offices and other public buildings. However, for the first time nonionic surfactants have been identified in house dust. (C) 2002 Elsevier Science B.V. All rights reserved.