Uncertainty Associated with the Analysis of Secondary Organic Aerosol Compounds Formed in Smog Chambers by Gas Chromatography-Mass Spectrometry

被引：0

作者：

Pindado Jimenez, Oscar ^{[1
]}

Perez Pastor, Rosa Ma ^{[1
]}

机构：

[1] CIEMAT, Dept Technol, Div Chem, E-28040 Madrid, Spain

来源：

AEROSOL AND AIR QUALITY RESEARCH | 2014年 / 14卷 / 03期

关键词：

Gas chromatography-mass spectrometry; Secondary organic compounds; Smog chambers; Uncertainty; ATMOSPHERIC PHOTOOXIDATION; PESTICIDE-RESIDUES; SOA FORMATION; HYDROCARBONS; VALIDATION; EXTRACTION; PRODUCTS; WATER; IDENTIFICATION; ALKYLBENZENES;

D O I：

10.4209/aaqr.2013.07.0250

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This work assesses the main sources of uncertainty of the determination of several secondary organic aerosol (SOA) components. The evaluation of the uncertainty associated with analytical methods is essential in order to demonstrate that the results obtained in routine analysis are reliable. The current work has thoroughly evaluated the sources of uncertainties associated with the analytical method employed to quantify the SOA produced from photo-oxidation of complex mixtures of volatile organic compounds (VOCs) in smog chambers. Measurement uncertainties were calculated by applying a bottom-up approach. The combined uncertainty of the analytical method ranged from 8% for glyoxal to 29% for methyl benzoquinone. The results clearly show that the determination of some SOA compounds is associated with a high level of uncertainty, and thus the quantification process for these at lower levels remains challenging.

引用

页码：642 / U627

页数：25

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