共 25 条
Quantitative determination of 16 polycyclic aromatic hydrocarbons in soil samples using solid-phase microextraction
被引:42
作者:
Wang, Yonghua
[1
]
Zhang, Juan
[1
]
Ding, Youchao
[1
,2
]
Zhou, Jia
[2
]
Ni, Lixiao
[3
]
Sun, Cheng
[1
]
机构:
[1] Nanjing Univ, State Key Lab Pollut Control & Resource Reuse, Sch Environm, Nanjing 210093, Peoples R China
[2] Jiangsu Entry Exit Inspect & Quarantine Bur, Nanjing, Peoples R China
[3] Hohai Univ, Key Lab Integrated Regulat & Resource Dev Shallow, MOE, Coll Environm Sci & Engn, Nanjing, Peoples R China
关键词:
Internal standard;
Polycyclic aromatic hydrocarbons;
Soil sample;
Solid-phase microextraction;
Ultrasonic extraction;
CHROMATOGRAPHY-MASS SPECTROMETRY;
LIQUID-CHROMATOGRAPHY;
WATER SAMPLES;
EXTRACTION;
MATRICES;
FIBERS;
SPME;
CLEANUP;
MATTER;
URINE;
D O I:
10.1002/jssc.200900420
中图分类号:
O65 [分析化学];
学科分类号:
070302 ;
081704 ;
摘要:
A method for the determination of polycyclic aromatic hydrocarbons (PAHs) in soil samples using ultrasonic-assisted extraction with internal surrogates combined with solid-phase microextraction and GC-MS has been developed. Five kinds of commercial solid-phase microextraction fibers, 100 mu m PDMS, 30 mu m PDMS, 65 mu m PDMS/DVB, 50 mu m DVB/CAR/PDMS and 85 mu m PA, were compared to choose the optimal SPME fiber for extraction of PAHs. One hundred micrometers of PDMS fiber was found to be more suitable for the determination of PAHs due to its wider linear range, better repeatability, lower detection and more satisfactory efficacy than the other fibers. Under the recommended conditions, 100 mu m PDMS fiber could provide low nanogram level detection limits with correlation coefficient greater than 0.98. The method was also applied to determine PAHs in a spiked soil sample, obtaining recoveries higher than 79.3%. A field study with naturally contaminated samples from local contaminated sites was carried out. The proposed method was found to be a reliable, inexpensive and simple preparation method for quantitative determination of 16 PAHs in soil samples.
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页码:3951 / 3957
页数:7
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