A device and a method for sample preparation have been developed, which make it possible to implement successive stages of thermal separation of volatile components from a solid (liquid) matrix, their capture from the gas phase by a solid sorbent, and liquid microextraction of sorbates for further gas chromatographic analysis. The device and the algorithm of its application for GC–MS determination of a number of volatile organic compounds from matrices with complex chemical composition have been tested
Device and Method of Sample Preparation for Gas Chromatographic determination of Volatile Organic Compounds in Complex Matrices