摘要
建立了二级热脱附-气相色谱-质谱联用技术测定大气可吸入颗粒物PM10中16种多环芳烃的分析方法。对二级热脱附和色谱-质谱条件进行了优化。实验结果表明,方法的检出限为0.14~0.42ng/m3,平均加标回收率为52.7%~97.9%,相对标准偏差(RSD)为8.0%~18.4%。与传统方法相比,该方法的样品前处理时间短、有机溶剂的使用量少,是对人体及环境友善的检测技术。该方法已应用于32份实际大气颗粒物样品的分析。
A method for the determination of 16 polycyclic aromatic hydrocarbons(PAHs) in airborne particle samples was developed using two-step thermal desorption and gas chromatography-mass spectrometry(GC-MS).The thermal desorption conditions and GC-MS parameters were optimized.The results showed that the detection limits(LODs) of this method varied from 0.14 to 0.42 ng/m3.The average recoveries were ranged from 52.7% to 97.9%,and the relative standard deviations(RSD) were ranged from 8.0% to 18.4%.The method was applied to analyze 32 collected airborne particle samples.In comparison with the traditional method,this method can avoid the waste of organic solvents and also shorten the analysis time.It is a green method,and beneficial for the environment and the analysts.
出处
《色谱》
CAS
CSCD
北大核心
2010年第9期849-853,共5页
Chinese Journal of Chromatography
基金
国家重点基础研究计划("973")项目(No.2007CB407303)
北京市科学技术研究院创新团队项目(No.IG2000807C1)
引进中央在京资源平台建设项目(No.PXM2008-178305-06995)
关键词
热脱附
气相色谱-质谱法
多环芳烃
大气颗粒物
thermal desorption
gas chromatography-mass spectrometry(GC-MS)
polycyclic aromatic hydrocarbons(PAHs)
airborne particle samples