色谱

色谱 ›› 2010, Vol. 28 ›› Issue (09): 849-853.DOI: 10.3724/SP.J.1123.2010.00849

• 研究论文 • 上一篇    下一篇

二级热脱附-气相色谱-质谱联用测定大气可吸入颗粒物中的16种多环芳烃

王欣欣1,2, 刘庆阳2, 刘艳菊2*, 谷学新1   

  1. 1. 首都师范大学化学系, 北京 100048| 2. 北京市理化分析测试中心, 北京 100089
  • 收稿日期:2010-05-31 修回日期:2010-07-27 出版日期:2010-09-28 发布日期:2010-09-28
  • 通讯作者: 刘艳菊,研究员,研究方向为室内外空气污染、土壤污染、植物修复等.
  • 基金资助:

    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)和引进中央在京资源平台建设项目(No. PXM2008-178305-06995).

Determination of 16 polycyclic aromatic hydrocarbons in airborne particle samples using two-step thermal desorption and gas chromatography-mass spectrometry

WANG Xinxin1,2, LIU Qingyang2, LIU Yanju2*, GU Xuexin1   

  1. 1. Department of Chemistry, Capital Normal University, Beijing 100048, China; 2. Beijing Center for Physical and Chemical Analysis, Beijing 100089, China
  • Received:2010-05-31 Revised:2010-07-27 Online:2010-09-28 Published:2010-09-28

PDF

632

被引次数

22

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0.14～0.42 ng/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。

关键词: 大气颗粒物, 多环芳烃, 气相色谱-质谱法, 热脱附

Abstract: 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.

Key words: airborne particle samples, gas chromatography-mass spectrometry (GC-MS), polycyclic aromatic hydrocarbons (PAHs), thermal desorption