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作者:

Zhang, Chao-Yan (Zhang, Chao-Yan.) | Yan, Zeng-Guang (Yan, Zeng-Guang.) | Zhou, You-Ya (Zhou, You-Ya.) | Wang, Lin (Wang, Lin.) | Xie, Ya-Bo (Xie, Ya-Bo.) (学者:谢亚勃) | Bai, Li-Ping (Bai, Li-Ping.) | Zhou, Hui-Yan (Zhou, Hui-Yan.) | Li, Fa-Sheng (Li, Fa-Sheng.)

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EI Scopus SCIE PubMed

摘要:

Three Ag(I)-organic frameworks, [Ag-5(pydc)(2)(CN)](n), {[Ag-4(pydc)(2)]CH3CN}(n), and [Ag(4,4'-bpy)NO3](n), were synthesized and embedded into silica gels to form metal-organic-framework (MOF)-embedded gels for the microextraction of polybrominated diphenyl ethers (PBDEs) in soils. Despite the great differences in the structures of the organic ligands, all three Ag(l)-organic frameworks were found to effectively accumulate and concentrate PBDEs from sample solutions prepared with contaminated soil and purified water, indicating the important roles of Ag centers in PBDE extraction. Under the optimal experimental conditions (MOF mass, water volume, temperature, extraction time, and back-extraction time) for PBDE extraction from sample solutions, the detection limits of seven PBDEs (BDE-28, 47, 99, 100, 153, 154, and 183) ranged from 0.01 to 2.6 ngg(-1) for [Ag-5(pydc)(2)(CN)](n), 0.20-0.64 ng g(-1) for {[Ag-4(pydc)(2)]CH3CN}(n), and 0.60-3.08 ngg(-1) for [Ag(4,4'-bpy)NO3](n). The reproducibilities of the three methods were all satisfactory with relative standard deviations (RSDs) in the range of 2.2-9.6%, 5.3-10.4%, and 6.9-9.4% for [Ag-5(pydc)(2)(CN)](n), {[Ag-4(pydc)(2)]CH3CN}(n), and [Ag(4,4'-bpy)NO3](n) In, respectively. The use of Ag(I)-organic frameworks for the microextraction of PBDEs was validated using both certified reference soils and field-contaminated soils, and the proposed methods are recommended as rapid and environmentally friendly alternatives for the extraction and determination of PBDEs in soils. (C) 2015 Elsevier B.V. All rights reserved.

关键词:

MOF-embedded gel Soil Ag-organic frameworks Microextraction Polybrominated diphenyl ethers

作者机构:

  • [ 1 ] [Zhang, Chao-Yan]Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
  • [ 2 ] [Yan, Zeng-Guang]Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
  • [ 3 ] [Zhou, You-Ya]Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
  • [ 4 ] [Wang, Lin]Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
  • [ 5 ] [Bai, Li-Ping]Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
  • [ 6 ] [Li, Fa-Sheng]Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
  • [ 7 ] [Wang, Lin]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100022, Peoples R China
  • [ 8 ] [Xie, Ya-Bo]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100022, Peoples R China
  • [ 9 ] [Zhou, Hui-Yan]Natl Applicat Software Prod Qual Supervis & Testi, Beijing 100139, Peoples R China

通讯作者信息:

  • [Zhou, You-Ya]Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China

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来源 :

JOURNAL OF CHROMATOGRAPHY A

ISSN: 0021-9673

年份: 2015

卷: 1383

页码: 18-24

4 . 1 0 0

JCR@2022

ESI学科: CHEMISTRY;

ESI高被引阀值:253

JCR分区:1

中科院分区:2

被引次数:

WoS核心集被引频次: 18

SCOPUS被引频次: 19

ESI高被引论文在榜: 0 展开所有

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