Fully automated in-tube solid-phase microextraction for liquid samples coupled to gas chromatography.
An online device is described in which analytes are extracted from a liquid sample by means of in-tube solid-phase microextraction (in-tube SPME), pulse released by rapid heating, and transferred to a gas chromatograph in a fully automated way. Switching of the sample and gas flows as well as the heating of the extraction tube and the valves is controlled by a remote computer system. Results obtained for river water and for aqueous standard solutions of phenanthrene are presented and are compared to the performance of standard SPME.
Globig
Daniel
D
Department of Physical and Analytical Chemistry, Brandenburg University of Technology, Erich-Weinert-Str. 1, 03044, Cottbus, Germany.
Weickhardt
Christian
C