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Determination of chlorophenoxy acid herbicides by using a zirconium-based metal-organic framework as special sorbent for dispersive micro-solid-phase extraction and high-performance liquid chromatography
Xia, Lian1; Liu, Lijie1; Xu, Xianli1; Zhu, Fenfen1; Wang, Xiuli1; Zhang, Keyun1; Yang, Xuncheng1; You, Jinmao1,2
2017
发表期刊NEW JOURNAL OF CHEMISTRY
卷号41期号:6页码:2241-2248
文章类型Article
摘要The present study reports on a Zr-based metal-organic framework (MOF) with 2-amino-benzenedicarboxylic acid (UiO-66-NH2) ligand as a special and efficient adsorbent for pretreatment of chlorophenoxy acid herbicides (CPAHs) from biosamples. Owing to the ionic bond formation between the amino groups of the MOF and the carboxyl groups of CPAHs, CPAHs could be selectively and easily adsorbed by the MOF material. On the other hand, by regulation of the pH value of the eluting solvent, CPAHs could also be easily eluted from the MOF. In addition, by characterization with the techniques of scanning electron microscopy, powder X-ray diffraction, and Brunner-Emmett-Teller surface area analysis, the as-synthesized material showed good characteristics of morphology, high specific surface area and large pore volume. Its performance was evaluated by the dispersive micro-solid-phase extraction (D-m-SPE) of CPAHs from vegetable samples, followed by high-performance liquid chromatography (HPLC) analysis. The parameters affecting the extraction efficiency were investigated and properly optimized. By combining the optimized D-m-SPE conditions with HPLC, a sensitive method for the determination of CPAHs was developed. In the linearity range of 10-1000 pmol mL(-1), the correlation coefficients were satisfactory (R-2 > 0.9985) for all the analytes; the LODs were 0.16-0.37 ng g(-1) based on a signal-to-noise ratio of 3; the intra-day and inter-day precision values (based on the relative standard deviation, n = 3) were under 3.1% and 5.9%, respectively; and satisfactory recoveries for all analytes in all samples were in the range of 82.3-102%. The results demonstrate that the synthesized Zr-MOF has a potential application of adsorbing CPAHs from complex matrix.
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c6nj03378d
关键词[WOS]TANDEM MASS-SPECTROMETRY ; POLYCHLORINATED-BIPHENYLS ; TRANSFORMATION PRODUCTS ; FLUORESCENCE DETECTION ; ENVIRONMENTAL-SAMPLES ; CLOFIBRIC ACID ; WATER ; MICROEXTRACTION ; STORAGE ; SILICATE
收录类别SCI
语种英语
项目资助者National Natural Science Foundation of China(21505084 ; Natural Science Foundation of Shandong Province(ZR2014BM029) ; 21475075 ; 21375076 ; 21677085)
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000397749000006
引用统计
被引频次:32[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/6812
专题中国科学院西北高原生物研究所
作者单位1.Qufu Normal Univ, Key Lab Life Organ Anal Shandong Prov, Qufu, Peoples R China
2.Chinese Acad Sci, Northwest Plateau Inst Biol, Xining, Peoples R China
推荐引用方式
GB/T 7714
Xia, Lian,Liu, Lijie,Xu, Xianli,et al. Determination of chlorophenoxy acid herbicides by using a zirconium-based metal-organic framework as special sorbent for dispersive micro-solid-phase extraction and high-performance liquid chromatography[J]. NEW JOURNAL OF CHEMISTRY,2017,41(6):2241-2248.
APA Xia, Lian.,Liu, Lijie.,Xu, Xianli.,Zhu, Fenfen.,Wang, Xiuli.,...&You, Jinmao.(2017).Determination of chlorophenoxy acid herbicides by using a zirconium-based metal-organic framework as special sorbent for dispersive micro-solid-phase extraction and high-performance liquid chromatography.NEW JOURNAL OF CHEMISTRY,41(6),2241-2248.
MLA Xia, Lian,et al."Determination of chlorophenoxy acid herbicides by using a zirconium-based metal-organic framework as special sorbent for dispersive micro-solid-phase extraction and high-performance liquid chromatography".NEW JOURNAL OF CHEMISTRY 41.6(2017):2241-2248.
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