DOI: 10.1016/j.atmosenv.2013.10.049
Scopus记录号: 2-s2.0-84888092287
论文题名: Measurement of the oxidative potential of PM2.5 and its constituents: The effect of extraction solvent and filter type
作者: Yang A ; , Jedynska A ; , Hellack B ; , Kooter I ; , Hoek G ; , Brunekreef B ; , Kuhlbusch T ; A ; J ; , Cassee F ; R ; , Janssen N ; A ; H
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 83 起始页码: 35
结束页码: 42
语种: 英语
英文关键词: Ascorbate acid depletion
; DTT
; ESR
; Oxidative potential
; Particulate matter
; Reactive oxygen species
Scopus关键词: Ascorbic acid
; Assays
; Paramagnetic resonance
; Polytetrafluoroethylenes
; Quartz
; Solvents
; Ascorbate acid depletion
; DTT
; Oxidative potential
; Particulate Matter
; Reactive oxygen species
; Solvent extraction
; ascorbic acid
; dithiothreitol
; politef
; silicon dioxide
; solvent
; assay
; chemical composition
; correlation
; epidemiology
; filtration
; measurement method
; oxidation
; particulate matter
; quartz
; solvent
; article
; ascorbate acid depletion
; chemical analysis
; chemical composition
; controlled study
; correlation analysis
; electron spin resonance
; filter
; oxidation reduction potential
; particulate matter
; priority journal
; reductive acridinium triggering
; solvent extraction
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The capacity of Particulate Matter (PM) to oxidise target molecules, defined as its oxidative potential (OP), has been proposed as a biologically more relevant metric than PM mass. Different assays exist for measuring OP and their methodologies vary in the choice of extraction solvent and filter type. Little is known about the impact of extraction and filter type on reported OP. Four a-cellular assays; electron spin resonance (ESR), dithiothreitol (DTT), ascorbate acid depletion (AA) and reductive acridinium triggering (CRAT) assay were chosen to evaluate whether these differences affect the OP measurement, the correlation between OP from different assays and the association with PM chemical composition. We analysed 15 urban 48-72h PM2.5 samples collected on quartz and Teflon filters. The choice of extraction solvent had only a significant effect on OPDTT, while all OP measures for quartz filters were heavily attenuated. OP values derived from quartz were, however, highly correlated with those derived from Teflon. OPDTT correlated highly with OPCRAT, and OPESR correlated highly with OPAA. These correlations were affected by the choice of filter type. Correlations between OP and PM chemical composition were not affected by filter type and extraction solvent. These findings indicate that the measurement of relative OP reactivity is not greatly influenced by filter type and extraction solvent for the investigated assays. This robustness is also promising for exploratory use in monitoring and subsequent epidemiological studies. © 2013 The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80925
Appears in Collections: 气候变化事实与影响
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作者单位: National Institute for Public Health and the Environment (RIVM), P.O. Box 1, 3720BA Bilthoven, Netherlands; Institute for Risk Assessment Sciences, Division Environmental Epidemiology, Utrecht University, P.O. Box 80.178, 3508TD Utrecht, Netherlands; The Netherlands Organisation for Applied Scientific Research (TNO), Princetonlaan 6, 3584CB Utrecht, Netherlands; Air Quality and Sustainable Nanotechnology, Institute of Energy and Environmental Technology (IUTA) e.V., Blierheimer Str. 60, 47229 Duisburg, Germany; Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, Netherlands; CENIDE, University Duisburg-Essen, Duisburg, Germany
Recommended Citation:
Yang A,, Jedynska A,, Hellack B,et al. Measurement of the oxidative potential of PM2.5 and its constituents: The effect of extraction solvent and filter type[J]. Atmospheric Environment,2014-01-01,83