1. A chemiluminescence method for screening of fluoroquinolones in milk samples based on a multi-pumping flow system.
- Author
-
Vakh C, Pochivalov A, Koronkiewicz S, Kalinowski S, Postnov V, and Bulatov A
- Subjects
- Animals, Anti-Infective Agents, Luminescence, Fluoroquinolones analysis, Milk chemistry, Solid Phase Extraction methods
- Abstract
An automated and miniaturized chemiluminescence method for screening of fluoroquinolones in milk samples was proposed. The method was based on magnetic dispersive micro-solid phase extraction of analytes followed by the chemiluminescence determination of the total fluoroquinolones content using a multi-pumping flow system. In the developed method, Zr-Fe-C magnetic nanoparticles were used as an efficient sorbent for separation of fluoroquinolones from sample matrix. The chemiluminescence intensity obtained for Ce
4+ -SO3 2- -Tb3+ chemiluminescence system was greatly increased in the presence of the analytes. Under the optimal conditions, the detector response for fluoroquinolones was linear in the concentration ranges from 5·10-9 to 1·10-6 mol L-1 with respect to fleroxacin. The limit of detection, calculated from a blank test based on 3σ, was 2·10-9 mol L-1 with respect to fleroxacin. The presented method demonstrated to be a good tool for available and cost-effective point-of-need screening fluoroquinolones in milk samples., (Copyright © 2018 Elsevier Ltd. All rights reserved.)- Published
- 2019
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