Determination of Aniline in Soil by ASE/GC-MS

被引:6
作者
Shi, Yongli [1 ,2 ]
Zhang, Kai [1 ,2 ]
机构
[1] Henan Prov Coal Geol Survey & Res Inst, Zhengzhou 450052, Peoples R China
[2] Minist Nat Resources, Key Lab Water & Soil Resources Protect & Rehabil, Zhengzhou 450052, Peoples R China
关键词
aniline; soil; ASE; GC-MS; detection; ACCELERATED SOLVENT-EXTRACTION; AROMATIC-AMINES; CAPILLARY-ELECTROPHORESIS; PHASE MICROEXTRACTION; LIQUID-CHROMATOGRAPHY; ORGANIC CONTAMINANTS; SIMULTANEOUS REMOVAL; WATER SAMPLES; SEWAGE-SLUDGE; WASTE-WATER;
D O I
10.3390/molecules27072092
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
In this study, a rapid and simple method based on accelerated solvent extraction (ASE) combined with gas chromatography-mass spectrometry (GC-MS) was established to determine the levels of aniline in soil. The matrix spike recovery rates of aniline were investigated by changing several experimental parameters such as vacuum freeze-drying, accelerated solvent extraction, sample transfer, nitrogen-blowing concentration and solvent exchange. Under optimized pretreatment conditions, the linearity of the method ranged from 0.5 to 20 mu g mL(-)(1) for aniline, and the correlation coefficient was 0.999. Recoveries of aniline from quartz sand and soil ranged from 76% to 98%, while the precision was excellent with average inter-day and intraday values ranging (n = 6) from 3.1% to 7.5% and 2.0% to 6.9%, respectively. The limits of quantification of the method were 0.04 mg kg(-1). Notably, the results show that the method we developed is simple, fast, low cost and can meet the requirements for the determination of aniline in soil samples, sewage sludge, river and pond sediments.
引用
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页数:13
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