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      The role of the separation sciences in the 21th century

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          Abstract

          This review examines, from a critical point-of-view, the role of the separation sciences in the new century considering the complexity of the problems to be faced. To make the exposition more dynamic the determination of a typical (hypothetical) organic analyte in a complex matrix is used to critically introduce the major separation techniques used nowadays. Techniques that promote the reduction or that fully eliminate the use of toxic solvents are stressed. After this evaluation the author discusses the future trends in this area with emphasis on the miniaturization of the instrumental techniques, the full automation of the analyses, the use of hyphenated techniques, the under-explored role of the solvents in separation techniques, the development of transition phase chromatography and unified chromatography.

          Translated abstract

          Esta revisão examina, de um ponto de vista crítico, o papel das ciências da separação no novo século, considerando a complexidade dos problemas a serem enfrentados. De forma a tornar a exposição mais dinâmica, uma determinação típica de um analito orgânico hipotético em uma matriz complexa é usado para introduzir criticamente as principais técnicas de separação empregadas atualmente. Técnicas as quais promovem uma redução ou mesmo a total eliminação do uso de solventes tóxicos são enfatizadas. Após esta avaliação o autor discute as tendências futuras nesta área, com ênfase na miniaturização das técnicas; a automação total da análise, o uso de técnicas hifenadas, o papel ainda sub-explorado dos solventes em técnicas de separação, e o desenvolvimento da cromatografia de transição de fase e da cromatografia unificada.

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          Solid Phase Microextraction, theory and practice

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            Cromatografia em Fase Gasosa

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              Applications of Solid Phase Microextraction

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                Author and article information

                Journal
                jbchs
                Journal of the Brazilian Chemical Society
                J. Braz. Chem. Soc.
                Sociedade Brasileira de Química (São Paulo, SP, Brazil )
                0103-5053
                1678-4790
                April 2003
                : 14
                : 2
                : 183-197
                Affiliations
                [01] São Carlos SP orgnameUniversidade de São Paulo orgdiv1Instituto de Química de São Carlos Brazil
                Article
                S0103-50532003000200005 S0103-5053(03)01400200005
                10.1590/S0103-50532003000200005
                ef028a98-6b9d-4869-b00f-b631019bc1b4

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 19 October 2002
                : 17 April 2003
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 52, Pages: 15
                Product

                SciELO Brazil

                Categories
                Reviews

                separation sciences,sample preparation,unified chromatography,extraction,chromatography,analytical chemistry

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