欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用活性炭吸附、溶剂解吸和气-质联用（GC-MS）分析的方法,对柴油机尾气中芳香烃污染物进行了定性、定量分析。实验结果表明,该方法能够减少柴油机尾气中其他颗粒相和气相有机成分的干扰,采样快速,灵敏度、准确度高;活性炭吸附管采样效率高,当采样流量为4 L/min、采集时间〈20 min时,不会出现芳香烃脱附现象;测量方法重复性较好,相对标准偏差低于6.5%,检出限为3~9μg/m3,回收率为87.5%~95.2%;该方法可用于测量柴油机燃用生物柴油和0号柴油尾气中芳香烃污染物。
英文摘要：
The aromatic hydrocarbons were measured by a method of activated carbon adsorption-solvent desorption/GC-MS analysis,the emission test were performed with a DI single cylinder diesel engine.The experimental results indicate that using this method there were no interference of other particle-phase and gas-phase organic compounds,and the aromatic hydrocarbons in diesel exhausts could be determined with high sensitivity and rapidity.The activated carbon adsorbent tube has high sampling efficiency,the desorption of aromatic hydrocarbons would not appeare when the sampling flow was 4 L/min,sampling time was less than 20 minutes.The relative standard deviation（RSD） of 5 MAHs was less than 6.5% with detection limits between 3 μg/m3 and 9 μg/m3,and the recoveries of MAHs ranged from 87.5% to 95.2%.Results showed that this method is suitable for determination of aromatic hydrocarbons in diesel exhausts fueled with diesel and biodiesel.
同期刊论文项目
同项目期刊论文
期刊信息
位置：