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Coupling of Dynamic Headspace Sampling and Solid Phase Microextraction

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Abstract

A simple lab-made apparatus allowing the use of a SPME fiber as sorptive device for isolation of analytes from varied samples using dynamic headspace sampling (DHS) is presented here. The principal parameters for the operation of this device - the extraction time and the flow of purging gas - were studied using aqueous test solutions of volatile and semi-volatile analytes. Compared to conventional HS-SPME, DHS-SPME provided a substantial reduction in the extraction time with linearity, accuracy and precision comparable to the conventional approach. For a complex matrix such as mango pulp, the extraction efficiency of volatiles using the DHS-SPME combination was up to six times higher than that of conventional HS-SPME.

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Acknowledgments.

This work was financed by FAPESP (Foundation for Research Support of the State of São Paulo) and FAEP (Fund for Research and Teaching of the State University of Campinas).

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Authors and Affiliations

  1. Institute of Chemistry, State University of Campinas (Unicamp), CP 6154, 13084-971, Campinas, São Paulo, Brazil

    R. C. Silva, P. M. S. Aguiar & F. Augusto

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  1. R. C. Silva
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  2. P. M. S. Aguiar
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  3. F. Augusto
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Correspondence to F. Augusto.

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Silva, R., Aguiar, P. & Augusto, F. Coupling of Dynamic Headspace Sampling and Solid Phase Microextraction. Chromatographia 60, 687–691 (2004). https://doi.org/10.1365/s10337-004-0446-y

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  • DOI: https://doi.org/10.1365/s10337-004-0446-y

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