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学科主题: 物理化学
题名: The selective cleanup of complex matrices and simultaneous separation of benzo[a]pyrene by solid-phase extraction with MgO microspheres as sorbents
作者: Jin, Jing1;  Li, Yun1;  Zhang, Zhiping2;  Su, Fan1;  Qi, Peipei1;  Lu, Xianbo1;  Chen, Jiping1
通讯作者: 陈吉平
关键词: Cleanup ;  Selective ;  Benzo[a]pyrene ;  Solid-phase extraction ;  MgO microspheres
刊名: JOURNAL OF CHROMATOGRAPHY A
发表日期: 2011-12-23
DOI: 10.1016/j.chroma.2011.10.085
卷: 1218, 期:51, 页:9149-9154
收录类别: SCI
文章类型: Article
部门归属: 1
项目归属: 103
产权排名: 1,1
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine ;  Physical Sciences
类目[WOS]: Biochemical Research Methods ;  Chemistry, Analytical
摘要: The selective cleanup of complex matrices and simultaneous separation of benzo[a]pyrene by solid-phase extraction with MgO microspheres as sorbents
研究领域[WOS]: Biochemistry & Molecular Biology ;  Chemistry
英文摘要: A new method for the selective cleanup of complex matrices and simultaneous separation of benzo[a]pyrene (BaP) was developed in this study. This method was based on solid-phase extraction (SPE) using magnesium oxide microspheres as sorbents, and it eliminated interferences from various impurities, such as lipids, sulphur, pigments, halobenzenes, polychlorodibenzo-p-dioxins and poly-chlorodibenzofurans. Several parameters, including the volume of rinsing and eluting solvents, the type of loading solvents and SPE sorbents, were optimized systematically. The capability for impurity removal was verified by gel permeation chromatography, gas chromatography, and liquid chromatography. Compared to commercial sorbents (silica gel, florisil and alumina), MgO microspheres exhibited excellent performance in the selective isolation of BaP and removal of impurities. The proposed method was applied to detect BaP in complex samples (sediments, soils, fish, and porcine liver). The limit of quantification (LOQ) was 1.04 ng L(-1) and the resulting regression coefficient (r(2)) was greater than 0.999 over a broad concentration range (9.5-7600 ng L(-1)). In contrast to traditional methods, the proposed method can give rise to higher recovery (85.1-100.8%) and better selectivity with simpler operation and less consumption of organic solvents (20-40 mL). (C) 2011 Elsevier B.V. All rights reserved.
关键词[WOS]: POLYCYCLIC AROMATIC-HYDROCARBONS ;  MAGNESIUM-OXIDE MICROSPHERES ;  DIBENZO-P-DIOXINS ;  CIGARETTE SMOKE CONDENSATE ;  SLUDGE-AMENDED SOILS ;  SILICA-GEL COLUMN ;  LIQUID-CHROMATOGRAPHY ;  POLYCHLORINATED-BIPHENYLS ;  FLUORESCENCE SPECTROSCOPY ;  GAS-CHROMATOGRAPHY
语种: 英语
WOS记录号: WOS:000298530000005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115546
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Purdue Univ, Weldon Sch Biomed Engn, W Lafayette, IN 47907 USA

Recommended Citation:
Jin, Jing,Li, Yun,Zhang, Zhiping,et al. The selective cleanup of complex matrices and simultaneous separation of benzo[a]pyrene by solid-phase extraction with MgO microspheres as sorbents[J]. JOURNAL OF CHROMATOGRAPHY A,2011,1218(51):9149-9154.
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