Perspectives and challenges of on-site quantification of organic pollutants in soils using solid-phase microextraction
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This study explores the current state-of-the-art progress toward on-site quantification of organic pollutants in soils with solid-phase microextraction (SPME). In spite of many available methods, only few publications report on-site analyses of soil samples by SPME. To date, the only application of SPME for the on-site quantification of organic pollutants in soil has been devoted to trichloroethylene. The problem of matrix effects limiting quantification by external standard calibration is discussed. Efficiencies of available approaches for decreasing and controlling matrix effects are evaluated and compared. SPME from a soil sample headspace with internal standard calibration was identified as one of the promising approaches to achieve fast, simple, precise, and accurate on-site quantification of a wide range of organic pollutants in soil. Cold-fiber SPME has a significant development potential, because it is capable of providing lowest detection limits together with a minimum matrix effect. Perspectives for future development of the field are outlined.
This is a manuscript of an article published as Kenessov, Bulat, Jacek A. Koziel, Nadezhda V. Bakaikina, and Dina Orazbayeva. "Perspectives and challenges of on-site quantification of organic pollutants in soils using solid-phase microextraction." TrAC Trends in Analytical Chemistry 85 (2016): 111-122. DOI: 10.1016/j.trac.2016.04.007. Posted with permission.