DOI: 10.1016/j.atmosenv.2015.09.076
Scopus记录号: 2-s2.0-84944884208
论文题名: On a possible bias in elemental carbon measurements with the Sunset thermal/optical carbon analyser caused by unstable laser signal
作者: Ammerlaan B ; A ; J ; , Jedynska A ; D ; , Henzing J ; S ; , Holzinger R
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 122 起始页码: 571
结束页码: 576
语种: 英语
英文关键词: Elemental carbon
; Split point
; Sunset
; Thermal optical method
; Unstable laser transmission signal
Scopus关键词: Thermal conductivity
; Elemental carbon
; Laser transmission
; Split points
; Sunset
; Thermal optical method
; Organic carbon
; carbon
; organic carbon
; aerosol
; fractionation
; optical instrument
; optical method
; organic carbon
; aerosol
; analyzer
; Article
; cooling
; heating
; laser
; laser signal
; priority journal
; sensitivity analysis
; signal detection
; temperature
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: We present results that demonstrate a possible bias in the fractioning of total carbon (TC) into elemental carbon (EC) and organic carbon (OC) for measurements with the Sunset Laboratory Inc. Thermal/Optical Carbon Aerosol Analyser. The bias is caused by an unstable laser transmission signal. The transmission signal during the analysis of an instrument blank filter can give an indication of the possible bias. If the transmission signal around the OC/EC split point deviates from its initial value, the EC attribution is altered. In a sensitivity study, we show that for a deviation of 10% the EC content is substantially biased. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81379
Appears in Collections: 气候变化事实与影响
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作者单位: Netherlands Institute for Applied Scientific Research (TNO), Utrecht, Netherlands; Institute for Marine and Atmospheric Research Utrecht (IMAU), Utrecht University, Utrecht, Netherlands
Recommended Citation:
Ammerlaan B,A,J,et al. On a possible bias in elemental carbon measurements with the Sunset thermal/optical carbon analyser caused by unstable laser signal[J]. Atmospheric Environment,2015-01-01,122