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Techniques & Tools Sample Preparation, Gas Chromatography, Liquid Chromatography

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Over the past three decades, a huge number of analytical solutions have been proposed for sample preparation in combination with chromatographic or hyphenated techniques. The complexity of many matrices, as well as the trace levels found in the samples, gave rise to what appeared to be novel ideas and modern concepts, most of them in compliance with the green analytical chemistry (GAC) principles. Good examples of well-established sample enrichment techniques are solid phase microextraction (SPME) and stir-bar sorptive extraction (SBSE), introduced around 25 and 15 years ago, respectively (1).

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About the Author

José Manuel Florêncio Nogueira

J.M.F. Nogueira is Associate Professor at the Faculty of Sciences of the University of Lisbon (UL), Lisbon (Portugal). In 1990, he received a degree in Chemistry and a PhD in Analytical Chemistry (UL) in 1995. He worked several months at the Research Institute for Chromatography and University of Gent (Belgium) during his PhD project. Currently, he is researcher at the Centre of Chemistry and Biochemistry (UL) and head of the Separation Science & Technology group. His main research activity focuses on the development and application of innovative analytical methodologies involving chromatographic, electromigration and hyphenated techniques. In this context, the development of novel analytical approaches, with emphasis to the modern sorption-based microextraction techniques, point out the main research activities in areas such as environment, water, food, phytochemistry, natural products, etc. He is author and co-author of dozens of peer-reviewed articles (h-index: 32) and chapters of international books, as well as supervisor of academic graduation and post-graduation projects and referee in international scientific journals. In 1999, he founded the Chromatography group of the Portuguese Chemical Society, being president during several years. He has been chairman and co-chairman of national and international meetings on chromatography, as well as invited to be chairperson and speaker in scientific sessions. Now, he is the Portuguese representative of the European Society for Separation Science.

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