期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 371, 期 -, 页码 433-439出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2019.03.033
关键词
Phenoxycarboxylic acids; Polyphenylene-based conjugated microporous polymers; Dispersive solid phase extraction; Environmental samples; Liquid chromatography-tandem mass spectrometry
资金
- National Natural Science Foundation of China [21777089, 218040808]
- Natural Science Foundation of Shandong Province [ZR2018MB040, ZR2016YL003]
- Key Research and Development Program of Shandong Province [2017GSF17107]
- Shandong Province Taishan Scholar Program [ts201712063]
High-performance capturing polar phenoxycarboxylic acids herbicides (PCAs) from water samples remains a great challenge because PCAs form salt easily and dissolve. Polyphenylene-based conjugated microporous polymers (PP-CMPs), a fascinating type of polymers, bear pi-conjugation over 3D polyphenylene scaffolds, inherent micropore, and large surface area, which are essential for capturing trace PCAs in complex samples. This work developed a novel approach to quantify trace PCAs using PP-CMPs as an efficient dispersive solid-phase extraction (d-SPE) adsorbent. The developed method based on PP-CMPs achieved high sensitivity with limits of detection of 0.55-3.84 ng L-1, satisfactory correlation coefficients (>= 0.9912), good linearity (50-10,000 ng L-1), and good precisions (2.0-9.0%). Moreover, this method was used for simultaneous monitoring of the amounts of five PCAs in environmental water samples with satisfactory spiked recoveries (86.9-101.3%). All these fact demonstrated that this new d-SPE technique based on PP-CMPs exhibited a promising potential for highly sensitive analysis of trace PCAs in complex samples.
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