Feasibility of coupling a thermal/optical carbonanalyzer to a quadrupole mass spectrometer forenhanced PM2.5 speciation

doi:10.1080/10962247.2017.1394928

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（2010~）

	Feasibility of coupling a thermal/optical carbonanalyzer to a quadrupole mass spectrometer forenhanced PM2.5 speciation
	Gustavo M. Riggio 3; Chow, Judith C 2,3; Cropper,Paul M 3; Wang, XL(Wang, Xiaoliang)3; Yatavelli,Reddy L. N 1; Yang,XF(Yang,Xufei)4; Watson,John G 2,3
刊名	Journal of the Air & Waste Management Association
	2018-05
卷号	68 期号:5 页码:463-476
关键词	Pm2.5 Speciatiopn Material Balance Thermal Analysis Quartz-fiber Mass Spectra
DOI	10.1080/10962247.2017.1394928
文献子类	期刊论文
英文摘要	A thermal/optical carbon analyzer (TOA), normally used for quantification of organic carbon (OC) and elemental carbon (EC) in PM2.5 (fine particulate matter) speciation networks, was adapted to direct thermally evolved gases to an electron impact quadrupole mass spectrometer (QMS), creating a TOA-QMS. This approach produces spectra similar to those obtained by the Aerodyne aerosol mass spectrometer (AMS), but the ratios of the mass to charge (m/z) signals differ and must be remeasured using laboratory-generated standards. Linear relationships are found between TOA-QMS signals and ammonium (NH4+), nitrate (NO3−), and sulfate (SO42-) standards. For ambient samples, however, positive deviations are found for SO42-, compensated by negative deviations for NO3−, at higher concentrations. This indicates the utility of mixed-compound standards for calibration or separate calibration curves for low and high ion concentrations. The sum of the QMS signals across all m/z after removal of the NH4+, NO3−, and SO42- signals was highly correlated with the carbon content of oxalic acid (C₂H₂O₄) standards. For ambient samples, the OC derived from the TOA-QMS method was the same as the OC derived from the standard IMPROVE_A TOA method. This method has the potential to reduce complexity and costs for speciation networks, especially for highly polluted urban areas such as those in Asia and Africa.
项目编号	1214163 ; 1464501 ; C2350000894
语种	英语
资助机构	National Science Foundation ; National Science Foundation ; National Park Service IMPROVE Carbon Analysis Contract ; National Park Service IMPROVE Carbon Analysis Contract
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5273]
专题	地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Watson,John G
作者单位	1.Air Resources Board , El Monte , CA , USA 2.State Key Laboratory of Loess and Quaternary Geology (SKLLQG) , Institute of Earth Environment, Chinese Academy of Sciences , Xi'an , People's Republic of China 3.Desert Research Institute, Reno, NV, USA 4.Montana Tech of the University of Montana , Butte , MT , USA
推荐引用方式 GB/T 7714	Gustavo M. Riggio,Chow, Judith C,Cropper,Paul M,et al. Feasibility of coupling a thermal/optical carbonanalyzer to a quadrupole mass spectrometer forenhanced PM2.5 speciation[J]. Journal of the Air & Waste Management Association,2018,68(5):463-476.
APA	Gustavo M. Riggio.,Chow, Judith C.,Cropper,Paul M.,Wang, XL.,Yatavelli,Reddy L. N.,...&Watson,John G.(2018).Feasibility of coupling a thermal/optical carbonanalyzer to a quadrupole mass spectrometer forenhanced PM2.5 speciation.Journal of the Air & Waste Management Association,68(5),463-476.
MLA	Gustavo M. Riggio,et al."Feasibility of coupling a thermal/optical carbonanalyzer to a quadrupole mass spectrometer forenhanced PM2.5 speciation".Journal of the Air & Waste Management Association 68.5(2018):463-476.