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      Automated stir plate (bar) sorptive extraction coupled to high-performance liquid chromatography for the determination of polycyclic aromatic hydrocarbons.

      1 ,
      Journal of separation science
      Wiley

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          Abstract

          Automated methods of PDMS/beta-CD/divinylbenzene-coated stir plate sorptive extraction (SPSE) coupled to HPLC-fluorescence detector were reported for the first time. Three automation modes, static SPSE, circular flow SPSE and continuous flow SPSE, were evaluated and critically compared with stir bar sorptive extraction by using six polycyclic aromatic hydrocarbons as model analytes. It was found that the operable sample volume for circular flow SPSE and continuous flow SPSE was larger than that for static SPSE. Under the same extraction conditions, continuous flow SPSE exhibited the highest extraction efficiencies in all automated modes and manual stir bar sorptive extraction for the target compounds. Compared with the manual operation (approximately 5-10 min), automated SPSE required a relatively short time (117-180 s) to finish sampling, washing and sample loading. Besides being labor-saving and time-saving, automated SPSE has other advantages, such as no time limit and non-attended operation. The proposed continuous flow PDMS/beta-CD/divinylbenzene-coated SPSE-HPLC-fluorescence detector was successfully applied to environmental water analysis.

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          Author and article information

          Journal
          J Sep Sci
          Journal of separation science
          Wiley
          1615-9314
          1615-9306
          Jul 2010
          : 33
          : 14
          Affiliations
          [1 ] Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan, P. R. China.
          Article
          10.1002/jssc.201000091
          20533347
          44bffc6f-11a2-441d-b9a0-1ffe613e26f9
          History

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