Solid-phase-extraction device for extracting volatile organic compounds from gaseous samples.

Solid-phase extraction (SPE) is a sample preparation technique typically used for purifying target analytes in liquid samples prior to instrumental analysis, such as chromatographic analysis. Typical SPE device consists of packing particulate adsorbent into a glass or plastic cartridge. In the sample preparation process, the target analytes are extracted onto the adsorbent by loading the liquid sample into the SPE cartridge and separated from other contaminants. Then, the extracted compounds are eluted by the organic solvent. This article summarizes the SPE devices designed for extracting volatile organic compounds in gaseous samples. In these SPE devices, the extracted analytes are eluted by simply passing the desorption solvent. The devices can be reused after drying the adsorbent.