TY - JOUR
T1 - Quantitative analysis of nitro-polycyclic aromatic hydrocarbons in PM2.5 samples with graphene as a matrix by MALDI-TOF MS
AU - Ma, Nengxuan
AU - Bian, Wei
AU - Li, Ruijin
AU - Geng, Hong
AU - Zhang, Jiangang
AU - Dong, Chuan
AU - Shuang, Shaomin
AU - CAI, Zongwei
N1 - This work was supported by the National Natural Science Foundation of China (no. 21175086 and 21175025), Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi and Hundred Talents Program of Shanxi Province.
Publisher Copyright:
© The Royal Society of Chemistry 2015.
PY - 2015/5/7
Y1 - 2015/5/7
N2 - In this work, we developed a novel quantitative analysis method for detecting nitropolycyclic aromatic hydrocarbons (nitro-PAHs) in PM2.5 samples with graphene as a matrix using MALDI-TOF MS. A good linearity was obtained for the typical four nitro-PAHs, namely 1-nitropyrene (1-NP), 2-nitrofluorene (2-NFL), 6-nitrochrysene (6-NC) and 9-nitroanthracene (9-NA) with the correlation coefficient better than 0.985 by means of 9-nitroanthracene-d9 as the internal standard. The average recoveries of this method were from 69.2% to 119.4%, and the inter-day precisions were less than 12.3% with intra-day precisions less than 20.7%. The limits of detection for 1-NP, 2-NFL, 6-NC and 9-NA were 0.74, 8.04, 2.67 and 2.31 ng μL-1, respectively. We have validated the practicality by the analysis of nitro-PAHs in PM2.5 samples collected during haze weather in Taiyuan of China. The mass concentrations of Σ-nitropyrene, Σ-nitrofluorene, Σ-nitrochrysene and Σ-nitroanthracene on the collected PM2.5 samples were detected at levels of 0.38 to 3.04 ng m-3, 0.21 to 0.43 ng m-3, 0.19 to 2.38 ng m-3, and 9.55 to 16.52 ng m-3, respectively. The present method proved to be a good candidate for simple, fast and eco-friendly determination of nitro-PAHs by using MALDI-TOF MS coupled with an internal standard method.
AB - In this work, we developed a novel quantitative analysis method for detecting nitropolycyclic aromatic hydrocarbons (nitro-PAHs) in PM2.5 samples with graphene as a matrix using MALDI-TOF MS. A good linearity was obtained for the typical four nitro-PAHs, namely 1-nitropyrene (1-NP), 2-nitrofluorene (2-NFL), 6-nitrochrysene (6-NC) and 9-nitroanthracene (9-NA) with the correlation coefficient better than 0.985 by means of 9-nitroanthracene-d9 as the internal standard. The average recoveries of this method were from 69.2% to 119.4%, and the inter-day precisions were less than 12.3% with intra-day precisions less than 20.7%. The limits of detection for 1-NP, 2-NFL, 6-NC and 9-NA were 0.74, 8.04, 2.67 and 2.31 ng μL-1, respectively. We have validated the practicality by the analysis of nitro-PAHs in PM2.5 samples collected during haze weather in Taiyuan of China. The mass concentrations of Σ-nitropyrene, Σ-nitrofluorene, Σ-nitrochrysene and Σ-nitroanthracene on the collected PM2.5 samples were detected at levels of 0.38 to 3.04 ng m-3, 0.21 to 0.43 ng m-3, 0.19 to 2.38 ng m-3, and 9.55 to 16.52 ng m-3, respectively. The present method proved to be a good candidate for simple, fast and eco-friendly determination of nitro-PAHs by using MALDI-TOF MS coupled with an internal standard method.
UR - https://www.scopus.com/pages/publications/84928910457
U2 - 10.1039/c5ay00341e
DO - 10.1039/c5ay00341e
M3 - Journal article
AN - SCOPUS:84928910457
SN - 1759-9660
VL - 7
SP - 3967
EP - 3971
JO - Analytical Methods
JF - Analytical Methods
IS - 9
ER -