马尼拉草挥发性有机物日变化规律的研究  

A Research on the Diurnal Changes in Releasing of Volatile Organic Compounds from Manila Grass

作　　者：雷静[1] 田媛[1] 郑帅帅 

机构地区：[1]北京工商大学食品学院,北京100048 [2]中国二十冶集团有限公司,上海201900

出　　处：《上海环境科学》2014年第5期187-191,196,共6页Shanghai Environmental Sciences

基　　金：北京市教委环境科学与工程重点建设学科项目,编号:PXM2012_014213_000042

摘　　要：马尼拉草在中国城市绿地草坪中随处可见。采用静态箱式吸附法收集马尼拉草中所释放的挥发性有机物,使用热脱附-气相色谱/质谱联用法进行分析。结果表明：马尼拉草挥发物中检测出的9种物质可以分为5大类,分别为烷烃、醇类、酯类、酮类和芳香烃;挥发物单日不同时刻的相对释放总量不同,在10：30-12：30之间,挥发物的相对释放总量最大;不同类型的挥发物在不同时刻其相对释放量存在差异,醇类物质的释放量最大。Manila grass can be seen everywhere in urban greenbelt lawn in China. A research has been conducted focusing on releasing of volatile organic compounds （VOCs） from manila grass by means of TCT-GC/ MS. The results showed that nine volatile substances releasing from manila grass have been detected in five major categories, i. e., alkanes, alcohols, esteems, ketones and aromatic hydrocarbons. Relative releasing of the volatiles varied in amount at different hours with the utmost occurring between 10：30 and 12：30. There were discrepancies in releasing of different types of the volatiles at different hours whilst alcohols set free the most.

关 键 词：马尼拉草 释放 日变化 挥发物 气质联用 

分 类 号：X51[环境科学与工程—环境工程]