期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1602, 期 -, 页码 178-187出版社
ELSEVIER
DOI: 10.1016/j.chroma.2019.06.046
关键词
Magnetic porous covalent triazine-based organic polymer; Magnetic solid phase extraction; Carbamates; High performance liquid chromatography-mass spectrometry
资金
- National Natural Science Foundation of China [31571925, 31671930]
- Natural Science Foundation of Hebei Province [B2016204136, B2016204146, B2017204025]
- Scientific and Technological Research Foundation of the Department of Education of Hebei Province [ZD2016085]
- Natural Science Foundation of Hebei Agricultural University [LG201607]
- Innovation Ability Training Program of Department of Education of Hebei Province [1009050]
A magnetic porous covalent triazine-based organic polymer (M-PCTP) was synthesized by co-precipitation method. The M-PCTP combined both the properties of the PCTP and the magnetism of Fe3O4 nanoparticles, possessing highly porous structure and good magnetism. It was used as a magnetic solid phase extraction (MSPE) adsorbent to extract carbamate pesticides (propoxur, carbaryl, isoprocarb, fenobcarb and diethofencarb) from lemonade and grape juice samples prior to high performance liquid chromatography-mass spectrometric detection. Under the optimal conditions, a good linearity for the real samples was received in the range from 0.10-0.90 to 80.00 ng mL(-1) with the correlation coefficients of 0.9882-0.9983. The method recoveries for the five carbamates were 86.3-108.0%. The limits of detection were 0.02-0.20 ng mL(-1) for lemonade sample, and 0.04-0.30 ng mL(-1) for grape juice sample. The M-PCTP also demonstrated good extraction capabilities for other different kinds of organic compounds including chlorophenols and polycyclic aromatic hydrocarbons. (C) 2019 Elsevier B.V. All rights reserved.
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