TY - JOUR
T1 - Organosulfates in atmospheric aerosol
T2 - Synthesis and quantitative analysis of PM2.5 from Xi'an, northwestern China
AU - Huang, Ru Jin
AU - Cao, Junji
AU - Chen, Yang
AU - Yang, Lu
AU - Shen, Jincan
AU - You, Qihua
AU - Wang, Kai
AU - Lin, Chunshui
AU - Xu, Wei
AU - Gao, Bo
AU - Li, Yongjie
AU - Chen, Qi
AU - Hoffmann, Thorsten
AU - O'Dowd, Colin D.
AU - Bilde, Merete
AU - Glasius, Marianne
N1 - Publisher Copyright:
© 2018 Author(s).
PY - 2018/6/18
Y1 - 2018/6/18
N2 - The sources, formation mechanism and amount of organosulfates (OS) in atmospheric aerosol are not yet well understood, partly due to the lack of authentic standards for quantification. In this study, we report an improved robust procedure for the synthesis of organosulfates with different functional groups. Nine authentic organosulfate standards were synthesized and four standards (benzyl sulfate, phenyl sulfate, glycolic acid sulfate, and hydroxyacetone sulfate) were used to quantify their ambient concentrations. The authentic standards and ambient aerosol samples were analyzed using an optimized ultra performance liquid chromatography-electrospray ionization-tandem mass spectrometric method (UPLC-ESI-MS/MS). The recovery ranged from 80.4 to 93.2%, the limits of detection and limits of quantification obtained were 1.1-16.7 and 3.4-55.6pgmĝ'3, respectively. Measurements of ambient aerosol particle samples collected in winter 2013/2014 in urban Xi'an, northwestern China, show that glycolic acid sulfate (77.3±49.2ngmg-3) is the most abundant species of the identified organosulfates followed by hydroxyacetone sulfate (1.3±0.5ngmg-3), phenyl sulfate (0.14±0.09ngmg-3), and benzyl sulfate (0.04±0.01ngmg-3). Except for hydroxyacetone sulfate, which seems to form mainly from biogenic emissions in this region, the organosulfates quantified during winter in Xi'an show an increasing trend with an increase in the mass concentrations of organic carbon indicating their anthropogenic origin.
AB - The sources, formation mechanism and amount of organosulfates (OS) in atmospheric aerosol are not yet well understood, partly due to the lack of authentic standards for quantification. In this study, we report an improved robust procedure for the synthesis of organosulfates with different functional groups. Nine authentic organosulfate standards were synthesized and four standards (benzyl sulfate, phenyl sulfate, glycolic acid sulfate, and hydroxyacetone sulfate) were used to quantify their ambient concentrations. The authentic standards and ambient aerosol samples were analyzed using an optimized ultra performance liquid chromatography-electrospray ionization-tandem mass spectrometric method (UPLC-ESI-MS/MS). The recovery ranged from 80.4 to 93.2%, the limits of detection and limits of quantification obtained were 1.1-16.7 and 3.4-55.6pgmĝ'3, respectively. Measurements of ambient aerosol particle samples collected in winter 2013/2014 in urban Xi'an, northwestern China, show that glycolic acid sulfate (77.3±49.2ngmg-3) is the most abundant species of the identified organosulfates followed by hydroxyacetone sulfate (1.3±0.5ngmg-3), phenyl sulfate (0.14±0.09ngmg-3), and benzyl sulfate (0.04±0.01ngmg-3). Except for hydroxyacetone sulfate, which seems to form mainly from biogenic emissions in this region, the organosulfates quantified during winter in Xi'an show an increasing trend with an increase in the mass concentrations of organic carbon indicating their anthropogenic origin.
UR - https://www.scopus.com/pages/publications/85048774228
U2 - 10.5194/amt-11-3447-2018
DO - 10.5194/amt-11-3447-2018
M3 - 文章
AN - SCOPUS:85048774228
SN - 1867-1381
VL - 11
SP - 3447
EP - 3456
JO - Atmospheric Measurement Techniques
JF - Atmospheric Measurement Techniques
IS - 6
ER -