Development of an impurity-profiling method for source identification of spilled benzene series compounds by gas chromatography with mass spectrometry: Toluene as a case study

doi:10.1002/jssc.201500086

	Development of an impurity-profiling method for source identification of spilled benzene series compounds by gas chromatography with mass spectrometry: Toluene as a case study
	Han, Bin 1,2; Chen, Junhui 1; Zheng, Li 1; Zhou, Tao 1; Li, Jingxi 1; Wang, Xiaoru 1; Wang, Jiangtao 2
刊名	JOURNAL OF SEPARATION SCIENCE
	2015-09
卷号	38 期号:18 页码:3198-3204
关键词	Benzene series Diagnostic ratio Identification Impurity profiling Toluene
ISSN号	1615-9306
DOI	10.1002/jssc.201500086
英文摘要	In this study, an impurity profiling method was established for the source identification of spilled benzene series compounds. Toluene was used as a case study to demonstrate the feasibility of this approach. Gas chromatography with mass spectrometry was applied for identification and quantification of the impurities including ethyl benzene, p-xylene, m-xylene, and o-xylene in toluene. Impurities in toluene were detected at very low levels by applying mass spectrometry in selected-ion monitoring mode. Eight authentic toluene samples collected from different manufacturers were analyzed by the developed gas chromatography with mass spectrometry method to construct the characteristic impurity profiling of toluene. Then, combined with scatter distribution, similarity analysis and t-test, a suite of diagnostic ratios based on the impurity distribution was used for the differentiation of toluene from different sources. Results indicated that scatter distribution method can discriminate the original toluene samples from different manufacturers. Similarity calculation and t-test methods can identify effectively the weathered toluene samples. The proposed impurity profiling method was useful for discrimination between toluene samples from different sources. Statistical analysis of these impurity profiles demonstrated the potential to investigate whether two questioned spilled toluene samples encountered in forensic casework are from the same source.
资助项目	Basic Scientific Fund for National Public Research Institutes of China[2013G11]
WOS关键词	POLYCYCLIC AROMATIC-HYDROCARBONS ; PAH DIAGNOSTIC RATIOS ; OIL-SPILL ; PETROLEUM BIOMARKERS ; QUALITY-CONTROL ; CHINA ; SAMPLES ; WATER ; FINGERPRINT ; MEDICINES
WOS研究方向	Chemistry
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000362575700011
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/26867]
专题	自然资源部第一海洋研究所
通讯作者	Chen, Junhui
作者单位	1.State Ocean Adm, Inst Oceanog 1, Res Ctr Marine Ecol, Qingdao, Peoples R China 2.Ocean Univ China, Minist Educ, Key Lab Marine Chem Theory & Technol, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Han, Bin,Chen, Junhui,Zheng, Li,et al. Development of an impurity-profiling method for source identification of spilled benzene series compounds by gas chromatography with mass spectrometry: Toluene as a case study[J]. JOURNAL OF SEPARATION SCIENCE,2015,38(18):3198-3204.
APA	Han, Bin.,Chen, Junhui.,Zheng, Li.,Zhou, Tao.,Li, Jingxi.,...&Wang, Jiangtao.(2015).Development of an impurity-profiling method for source identification of spilled benzene series compounds by gas chromatography with mass spectrometry: Toluene as a case study.JOURNAL OF SEPARATION SCIENCE,38(18),3198-3204.
MLA	Han, Bin,et al."Development of an impurity-profiling method for source identification of spilled benzene series compounds by gas chromatography with mass spectrometry: Toluene as a case study".JOURNAL OF SEPARATION SCIENCE 38.18(2015):3198-3204.