期刊
MICROCHIMICA ACTA
卷 185, 期 2, 页码 -出版社
SPRINGER WIEN
DOI: 10.1007/s00604-017-2659-4
关键词
Carbon nanoparticles; Hybridmonolith; Microextraction; Porous polymer; Photografting process; UVattachment; Drugs; Liquid chromatography; Biological samples
资金
- Spanish Ministry of Science and Innovation [CTQ2014-52939-R, CTQ2014-52765-R]
- Conselleria de Educacion, Investigacion, Cultura y Deporte, Generalitat Valenciana, Spain [PROMETEO/2016/145]
- Spanish Ministry of Education [FPU13/03896]
This work evaluates the potential of methacrylate monoliths with multi-walled carbon nanotubes incorporated into the polymeric network for the extraction of antidepressants from human urine. The method is based on a micropipette solid-phase extraction tip containing a hybrid monolithic material covalently attached to the polypropylene housing. A polymer layer made from poly(ethylene dimethacrylate) was bound to the inner surface of a polypropylene tip via UV grafting. The preparation of the monolith and the microextraction steps were optimized in terms of adsorption capacity. Limits of detection ranged from 9 to 15 mu g.L-1. The average precision of the method varied between 3 and 5% (intra-tips), and from 4 to 14%(inter-tips). The accuracy of the method was evaluated through a recovery study by using spiked samples.
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