汽油车尾气采样装置的设计及其收集物的成份分析
Composition Analysis of Tail Gas Emitted by Automobile Using Gasoline as Fuel
作者：梁英(四川大学 建筑与环境学院, 四川 成都 610065)；吴德生(四川大学 华西公共卫生学院, 四川 成都 610041)；毛炯(成都市公安局刑警支队技术处，四川 成都610000)
Author：(School of Architecture and Environment, Sichuan Univ.,Chengdu 610065, China)；(West China School of Public Health, Sichuan Univ.,Chengdu 610041, China)；(Criminal Investigation Dept. of Chengdu Public Security Bureau,Chengdu 610000,China)
收稿日期：2006-12-26 年卷（期）页码：2008,40(1):69-73
期刊名称：工程科学与技术
Journal Name：Advanced Engineering Sciences
关键字：汽油车尾气;采样装置;成份分析;气相色谱-质谱(GC/MS)
Key words：gasoline exhaust;sampling device;composition analysis; GC/MS
基金项目：中国石油西南油气田分公司川西北气矿资助项目(XNS05JS2003 - 82);四川大学校青年基金资助项目(0030505505011)
中文摘要
为了全面地分析汽油车尾气中的液、固、气态各类成份，根据汽油车尾气直排气的特点设计了一套采样装置，以粉尘采样器采集了颗粒物成份,以XAD-2树脂和聚氨酯泡沫(PUF)采集了气态成份,以冷凝器采集了冷凝液成份。各类成份经二氯甲烷提取,并经色谱-质谱联用仪(GC/MS)分析。并对汽车尾气中的常规成份进行了现场测定。结果显示90#汽油燃料汽车尾气中的非常规成份有99种,主要为单环芳烃,占78.4%,烃类物质占12.3%,多环芳烃占0.4%,还有少量的醛,酯等。
英文摘要
A set of device was designed for collecting tailpipe exhaust，by which all three states of exhaust were gathered directly from tailpipe. Particles were collected with particle sampler, gas phase with XAD 2 resin and poly urethane foam(PUF) in a U typed tube and liquor condensate with condensator. A representative sample of gasoline exhaust was getted. GC/MS was used to determine the component after samples were extracted by dichloromethane. The result showed that 90# gasoline exhaust contains 99 components. Monocylic aromatic hydrocarbons are the main component with 78.4%, aliphatic hydrocarbons are the second with 12.3%, polycyclic aromatic hydrocarbons are 0.4 %.In addition, a few of aldehyde and ester are found. Some preferential control contaminants were quantificationally analyzed.
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