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Title:
Determination of six sulfonylurea herbicides in environmental water samples by magnetic solid-phase extraction using multi-walled carbon nanotubes as adsorbents coupled with high-performance liquid chromatography
Author: Ma, JP; Jiang, LH; Wu, GG; Xia, Y; Lu, WH; Jinhua LI(李金花); Chen, LX
Source: JOURNAL OF CHROMATOGRAPHY A
ISSN: 0021-9673
Issued Date: 2016-09-30
Volume: 1466, Pages:12-20
Keyword: Sulfonylurea herbicides ; Magnetic solid-phase extraction ; Multi-walled carbon nanotubes ; Water samples ; High-performance liquid chromatography
DOI: 10.1016/j.chroma.2016.08.065
Rank: [Ma, Jiping; Jiang, Lianhua; Wu, Gege; Xia, Yan] Qingdao Technol Univ, Sch Environm & Municipal Engn, Qingdao 266033, Peoples R China; [Lu, Wenhui; Li, Jinhua; Chen, Lingxin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Environm Proc, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
Corresponding Author: Ma, JP (reprint author), Qingdao Technol Univ, Sch Environm & Municipal Engn, Qingdao 266033, Peoples R China. ; Chen, LX (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Environm Proc, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China. Email:majiping2012@163.com ; lxchen@yic.ac.cn
Department: 中科院海岸带环境过程与生态修复重点实验室
English Abstract: Magnetic solid-phase extraction (MSPE) using magnetic multi-walled carbon nanotubes (mag-MWCNTs) as adsorbents, coupled with high-performance liquid chromatography-diode-array detector (HPLC-DAD), was developed for the simultaneous separation and determination of six types of sulfonylurea herbicides (SUs) in environmental water samples. Several variables affecting MSPE efficiency were systematically investigated, including the type and volume of desorption solvent, sample solution pH, salt concentration, amount of mag-MWCNTs, and extraction and desorption time. Response surface was employed to assist in the MSPE optimization. Under optimized conditions, excellent linearity was achieved in the range of 0.05-5.0 mu g/L for all six SUs, with coefficients of correlation r > 0.9994, and preconcentration factors ranging from 178 to 210. Limits of detection and quantification were 0.01-0.04 mu g/L and 0.03-0.13 mu g/L, respectively. The intra-day and inter-day precision (relative standard deviations, n = 6, %) at three spiked levels were 2.0-11.0% and 2.1-12.9% in terms of peak area, respectively. The method recoveries at three fortified concentrations were obtained within 76.7-106.9% for reservoir water samples and 78.2-105.4% for tap water samples. The developed MSPE-HPLC method demonstrated high sensitivity, repeatability, simplicity, rapidity, and excellent practical applicability. (C) 2016 Elsevier B.V. All rights reserved.
WOS Subject Extended: Biochemistry & Molecular Biology ; Chemistry
Funder: National Natural Science Foundation of China(21547002 ; Taishan Scholar Construction Project Special Foundation(2010016010) ; Special Foundation of Central Financial Support to Local Colleges and Universities(201020029) ; 51478230 ; 21477160)
WOS Keyword Plus: MOLECULARLY IMPRINTED POLYMER ; MASS-SPECTROMETRY ; PHTHALATE-ESTERS ; SOIL SAMPLES ; PESTICIDES ; SILICA
DOC Type: Article
Indexed Type: SCI
Language: 英语
WOS ID: WOS:000384869000002
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Content Type: 期刊论文
URI: http://ir.yic.ac.cn/handle/133337/17477
Appears in Collections:中科院海岸带环境过程与生态修复重点实验室_期刊论文

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Recommended Citation:
Ma, JP,Jiang, LH,Wu, GG,et al. Determination of six sulfonylurea herbicides in environmental water samples by magnetic solid-phase extraction using multi-walled carbon nanotubes as adsorbents coupled with high-performance liquid chromatography[J]. JOURNAL OF CHROMATOGRAPHY A,2016,1466:12-20.
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