期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1626, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.chroma.2020.461360
关键词
Conjugated microporous polymers; Knoevenagel condensation; Solid-phase microextraction; Carbamate pesticides; Mass spectrometry
资金
- National Natural Science Foundation of China [31972145, 21771087, 21703080]
- NSF of Shandong Province [ZR2017MB007, ZR2017BB010]
- Taishan Scholar Program of Shandong Province [tsqn201812078]
Conjugated microporous polymers (CMPs) with uniform morphology have shown fascinating application in the separation science. In this study, metal-free Knoevenagel condensation was adopted to prepare spherical sp(2) carbon-conjugated microporous polymers, which used tetrakis(4-formylphenyl)methane and 1,4-phenylenediacetonitrile as monomers. Due to the remarkable extraction capability for carbamate pesticides (CPs), the as-synthesized CMPs were fabricated as the coating for solid-phase microextraction (SPME). After optimized SPME parameters (adsorption time, salt concentration, sample pH, adsorption temperature, desorption time, desorption solvent and desorption volume), ten CPs in water samples were quantified by ultrahigh performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS). Linearity in the range 0.0 05-10 0 ng mL(-1) with low detection limits of 0.0 0 060-0.017 ng mL(-1) was obtained. The intra-day and inter-day precisions expressed as relative standard deviations were 1.5-8.1% and 1.1-8.0%, respectively. Fiber-to-fiber reproducibility was below 7.3%. The CMPs-SPME-UPLC-MS/MS method was applied to detect trace CPs in real water samples with relative recoveries from 91.8% to 108%. (c) 2020 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据