Analytical Microextraction Techniques


M. Valcárcel, S. Cárdenas, R. Lucena

DOI: 10.2174/97816810837971170101
eISBN: 978-1-68108-379-7, 2016
ISBN: 978-1-68108-380-3

Indexed in: EBSCO.

Sample treatment has been the focus of intensive research in the last 20 years since it still remains a bottleneck in precise analytic...[view complete introduction]
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Stir Bar Sorptive Extraction and Related Techniques

- Pp. 219-240 (22)

José Manuel Florêncio Nogueira


From the sorption-based methods available nowadays, stir bar sorptive extraction (SBSE) became a well-established analytical technique for sample preparation, in which hundreds of applications in almost all scientific areas have already been proposed in the literature. This remarkable analytical tool shows great capacity for static microextraction and outstanding performance to operate at the ultratrace level, in particular for the analysis of complex systems. Furthermore, is very effective, present easy manipulation in comparison to other alternative techniques and great reproducibility for the analysis of priority and emerging organic compounds. Recently, related static microextraction techniques were introduced, with particular emphasis to bar adsorptive microextraction (BAμE) that operates under the floating sampling technology, in which has demonstrated high analytical capacity and remarkable performance. This novel concept has also proved great effectiveness for ultra-trace analysis of organic compounds with polar characteristics, in particular from complex systems. The present contribution describes the fundamental principles, the experimental methodology, the main applications, as well as, the analytical potential of these novel microextraction techniques.

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