江汉大学学报(自然科学版) ›› 2016, Vol. 44 ›› Issue (1): 11-17.doi: 10.16389/j.cnki.cn42-1737/n.2016.01.002

• 烟尘与废气污染治理研究 • 上一篇    下一篇

PM2.5中有机碳/元素碳测定探讨

黄睿,谈静,刘琼玉*   

  1. 工业烟尘污染控制湖北省重点实验室(江汉大学),江汉大学 化学与环境工程学院,湖北 武汉 430056
  • 出版日期:2016-02-28 发布日期:2016-03-11
  • 通讯作者: 刘琼玉
  • 作者简介:黄睿(1993—),女,研究方向:大气污染控制。
  • 基金资助:
    湖北省教育厅科学技术研究项目(B2015238)

Determination of Organic and Elemental Carbon in Fine Particulate Matters(PM2.5

HUANG Rui,TAN Jing,LIU Qiongyu*   

  1. Hubei Key Laboratory of Industrial Fume and Dust Pollution Control(Jianghan University),School of Chemistry and Environmental Engineering,Jianghan University,Wuhan 430056,Hubei,China
  • Online:2016-02-28 Published:2016-03-11
  • Contact: LIU Qiongyu
  • About author:刘琼玉(1971—),女,教授,博士,研究方向:污染控制化学。E-mail:qiongyuliu@163.com

摘要: 概述了PM2.5中有机碳/ 元素碳(OC/EC)的分析方法应用进展,分析了滤膜样品攫取方式对测定结果的影响,探讨了IMPROVE-A 法、NIOSH 5040 法和Quartz法对OC/EC/TC 测定结果的可比性。结果表明,IM?PROVE-A 法、NIOSH 5040 法和Quartz 法对TC 的测定结果无显著性差异( tTC < t0.05(2)),NIOSH 5040 法和Quartz 法对OC/EC的测定结果也无显著性差异( tOC < t0.05(2),tEC < t0.05(2)),但IMPROVE-A 法与NIOSH 5040 法、Quartz 法对OC/EC的测定结果均存在显著性差异( tOC > t0.01(2),tEC > t0.01(2))。鉴于OC/EC比值在颗粒物源解析中的重要意义,而目前国内外还未建立OC/EC的标准分析方法,由此提出在颗粒物源解析中规范OC/EC测定方法的迫切性。

关键词: PM2.5, 有机碳(OC), 元素碳(EC), 测定

Abstract: The research and application progress on organic carbon/elemented carbon(OC/EC)analysis methods of atmospheric particulates were summarized. The influences of the grab way on determination results for membrane samples were analyzed,and the comparability on determination results of OC/EC/TC(total carbon,TC)with IMPROVE-A,NIOSH 5040 and Quartz method were studied. The results showed that there was no significant difference for the determination of total carbon (TC) among IMPROVE-A,NIOSH 5040 and Quartz method( tTC < t0.05(2)). There was also no significant difference for the determination of OC/EC between NIOSH 5040 and Quartz method( tOC < t0.05(2) ,tEC < t0.05(2)). However,IMPROVE-A and NIOSH 5040 method or Quartz method,there were significant differences for the determination of OC/EC( tOC > t0.01(2),tEC > t0.01(2)). Since the OC/EC ratio is of great importance in source apportionment of particulates,and there is no standardized method for OC/EC determination, thus it′s very necessary to standardize the OC/EC analysis method for source apportionment.

Key words: fine particulate matter(PM2.5), organic carbon(OC), elemental carbon(EC), determination

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