Journal
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
Volume 403, Issue 3, Pages 785-796Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-012-5901-2
Keywords
Solid-phase microextraction; Antibiotic drugs; High-performance liquid chromatography; Mass spectrometry
Funding
- European Social Found
- Polish National Budget
- Kujawsko-Pomorskie Voivodship Budget
- National Science Center (Cracow, Poland) [2011/01/N/ST4/03178]
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Novel molecularly imprinted polymer (MIP)-coated fibers for solid-phase microextraction (SPME) fibers were prepared by using linezolid as the template molecule. The characteristics and application of these fibers were investigated. The polypyrrole, polythiophene, and poly(3-methylthiophene) coatings were prepared in the electrochemical polymerization way. The molecularly imprinted SPME coatings display a high selectivity toward linezolid. Molecularly imprinted coatings showed a stable and reproducible response without any influence of interferents commonly existing in biological samples. High-performance liquid chromatography with spectroscopic UV and mass spectrometry (MS) detectors were used for the determination of selected antibiotic drugs (linezolid, daptomycin, amoxicillin). The isolation and preconcentration of selected antibiotic drugs from new types of biological samples (acellular and protein-free simulated body fluid) and human plasma samples were performed. The SPME MIP-coated fibers are suitable for the selective extraction of antibiotic drugs in biological samples.
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