期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1497, 期 -, 页码 38-46出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2017.03.069
关键词
Magnetic; Superhydrophilic; Molecularly imprinted resins; Triazines; Aqueous samples; High performance liquid chromatography-tandem mass spectrometry
资金
- Development Program of the Ministry of Science and Technology of Jilin Province, China [20150204070GX]
In this work, magnetic superhydrophilic molecularly imprinted resins (MMIRs) were prepared for the determination of triazines in aqueous samples combined HPLC-MS/MS. The amino functionalized magnetic nanoparticles were introduced into superhydrophilic molecularly imprinted resins based on one-pot condensation of resorcinol, melamine and formaldehyde. The obtained MMIRs exhibited magnetic responsiveness, superhydrophilic and selective feature. The MMIRs were directly used as adsorbents for selective enrichment and separation of six triazines in juice and lake samples under an applied magnetic field. The detection limits of triazines are in the range of 0.02-0.07 mu g L-1 (except for simazine, 0.38 mu g L-1). At the spiked level (5 mu g L-1), the recoveries are in the range of 85-101% with the RSDs <= 7%. This work provided a novel and efficient approach for the detection of triazines in aqueous samples. (C) 2017 Elsevier B.V. All rights reserved.
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