In-vehicle VOCs composition of unconditioned, newly produced cars
In-vehicle VOCs composition of unconditioned, newly produced cars
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DOI：
10.1016/s1001-0742(13)60459-3
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发表时间：
2014-05-01
影响因子：
6.9
通讯作者：
Golda-Kopek, Anna
中科院分区：
文献类型：
--
作者：
Brodzik, Krzysztof;Faber, Joanna;Golda-Kopek, Anna
车内挥发性有机化合物（VOCs）的浓度越来越受到汽车生产商和用户的关注。在本研究中，试图确定是否从一个无空调的汽车车厢收集的空气样品的分析可以作为一个质量控制措施。采用Carbograph 1 TD和Tenax TA吸附剂主动采样，热脱附-火焰离子化质谱（TD-GC/FID-MS）联用技术分析车内空气中VOCs的组成。本研究选取了9辆同品牌、同型号的新生产汽车。其中四辆车的内饰材料相同，另外五辆车的内饰和天窗不同;一辆车是敞篷车。取样事件发生在汽车装配厂外，受试汽车离开装配线不晚于取样发生前24小时。收集的样品中存在250多种化合物;通过比较质谱分析确认了160多种化合物的鉴定，通过与单一/多种化合物标准品的比较和质谱分析确认了80种化合物。一般而言，脂肪烃占测定的总VOC（TVOC）的60%以上。根据不同的车辆，芳烃的浓度从12%到27%的总挥发性有机化合物。汽车生产和车内空气采样之间的时间非常短，因此可以假设整个TVOC源自内饰材料的排气。这项研究的结果扩大了车内污染的知识，提出了汽车生产后立即车内空气质量的信息。
The in-vehicle volatile organic compounds (VOCs) concentrations gains the attention of both car producers and users. In the present study, an attempt was made to determine if analysis of air samples collected from an unconditioned car cabin can be used as a quality control measure. The VOCs composition of in-vehicle air was analyzed by means of active sampling on Carbograph 1TD and Tenax TA sorbents, followed by thermal desorption and simultaneous analysis on flame ionization and mass detector (TD-GC/FID-MS). Nine newly produced cars of the same brand and model were chosen for this study. Within these, four of the vehicles were equipped with identical interior materials and five others differed in terms of upholstery and the presence of a sunroof; one car was convertible. The sampling event took place outside of the car assembly plant and the cars tested left the assembly line no later than 24 hr before the sampling took place. More than 250 compounds were present in the samples collected; the identification of more than 160 was confirmed by comparative mass spectra analysis and 80 were confirmed by both comparison with single/multiple compounds standards and mass spectra analysis. In general, aliphatic hydrocarbons represented more than 60% of the total VOCs (TVOC) determined. Depending on the vehicle, the concentration of aromatic hydrocarbons varied from 12% to 27% of total VOCs. The very short period between car production and sampling of the in-vehicle air permits the assumption that the entire TVOC originates from off-gassing of interior materials. The results of this study expand the knowledge of in-vehicle pollution by presenting information about car cabin air quality immediately after car production.