Rapid determination of polyaromatic hydrocarbons and polychlorinated biphenyls in water using solid-phase microextraction and GC/MS.

TLDR: Solid-phase microextraction was investigated as a solvent-free alternative method for the extraction and analysis of nonpolar semivolatile analytes and eliminates the loss of analytes through adsorption onto container walls and saves transport costs.

Abstract: Solid-phase microextraction (SPME) was investigated as a solvent-free alternative method for the extraction and analysis of nonpolar semivolatile analytes. Analytes were extracted into a polymeric phase immobilized onto a fusedsilica fiber. The fiber was then inserted directly into the injector of a gas chromatograph, and the analytes were thermally desorbed. This new technique allows sampling directly from the source (lake, drinking fountain, etc.) and, therefore, eliminates the loss of analytes through adsorption onto container walls and saves transport costs