Determination of triazole pesticides in aqueous solution based on magnetic graphene oxide functionalized MOF-199 as solid phase extraction sorbents

作者：Liu Guangyang; Li Lingyun; Huang Xiaodong; Zheng Shuning; Xu Donghui^*; Xu Xiaomin; Zhang Yanguo; Lin Huan

来源：Microporous and Mesoporous Materials, 2018, 270: 258-264.

DOI：10.1016/j.micromeso.2018.05.023

• Determination
• Dispersive solid phase extraction
• Environmental water samples
• Metal organic framework
• Relative standard deviations
• Solid-phase extraction
• Solid-phase extraction sorbents
• Triazole pesticides

A novel magnetic copper-based metal organic framework (M-MOF-199) has been successfully prepared using Fe3O4–graphene oxide (GO) nanocomposite for solid phase extraction of five triazole pesticides from environment water samples. High-performance liquid chromatography coupled with tandem mass spectrometry was used for sample quantification and determination. The results suggest that Fe4O3–GO is a thin single-layer structure anchoring Fe3O4and M-MOF-199 is coated on its surface. Under the optimized conditions, the limits of detection of the triazole pesticides are 0.05–0.1 (S/N = 3) with correlation coefficients larger than 0.992. The recoveries in spiked water samples are 72.3%–91.53% with relative standard deviations ranging from 1.5% to 9.1%. Furthermore, the results show that M-MOF-199 is a promising hybrid adsorbent for magnetic dispersive solid phase extraction and removal of triazole pesticides from environmental water samples.

• 出版日期2018
• 单位中国农业科学院