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      Simplifying sample preparation using fabric phase sorptive extraction technique for the determination of benzodiazepines in blood serum by high-performance liquid chromatography : FPSE extraction of benzodiazepines from blood serum

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          Sample Preparation   Quo Vadis

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            Fast extraction of amphenicols residues from raw milk using novel fabric phase sorptive extraction followed by high-performance liquid chromatography-diode array detection.

            A simple, sensitive, reliable, and fast analytical method was developed for the simultaneous determination of amphenicols residues in raw milk by combining fabric phase sorptive extraction (FPSE) and high-performance liquid chromatography-diode array detection. FPSE, a new generation green sample preparation technique, efficiently incorporates the advanced and tunable material properties of sol-gel derived microextraction sorbents with the rich surface chemistry of a cellulose fabric substrate, resulting in a flexible, highly sensitive, and fast microextraction device capable of extracting target analytes directly from complicated sample matrices. Due to the strong chemical bonding between the sol-gel sorbent and substrate, the microextraction device demonstrates a very high chemical and solvent stability. Therefore, any organic solvent/solvent mixture can be used as the eluent/back-extraction solvent. Herein, a highly polar polymer coated FPSE media was created using short-chain poly(ethylene glycol) (PEG) and the applicability of this novel microextraction device to extract highly polar amphenicol antibiotics from raw milk was investigated. Due to the intense affinity of amphenicols towards the strongly polar sol-gel PEG-coated FPSE device, absolute recovery of the selected antibiotics residues were found to be 44% for thiamphenicol, 66.4% for florfenicol, and 81.4% for chloramphenicol. The developed method was validated in terms of sensitivity, linearity, accuracy, precision, and selectivity according to European Decision 657/2002/EC. Decision limit (CCα) values were 52.49 μg kg(-1) for thiamphenicol, 55.23 μg kg(-1) for florfenicol, and 53.8 μg kg(-1) for chloramphenicol, while the corresponding results for detection capability (CCβ) were 56.8 μg kg(-1), 58.99 μg kg(-1), and 55.9 μg kg(-1), respectively.
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              Innovations in sol-gel microextraction phases for solvent-free sample preparation in analytical chemistry

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                Author and article information

                Journal
                Biomedical Chromatography
                Biomed. Chromatogr.
                Wiley
                02693879
                June 2016
                June 2016
                October 15 2015
                : 30
                : 6
                : 829-836
                Affiliations
                [1 ]Laboratory of Analytical Chemistry, Department of Chemistry; Aristotle University of Thessaloniki; Greece
                [2 ]International Forensic Research Institute, Department of Chemistry and Biochemistry; Florida International University; Miami FL USA
                Article
                10.1002/bmc.3615
                © 2015

                http://doi.wiley.com/10.1002/tdm_license_1.1

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                Self URI (article page): http://doi.wiley.com/10.1002/bmc.3615

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