Abstract

The determination of trace organic compounds in real samples which contain interferences usually lacks accuracy. Sample preparation is generally required prior to instrumental analysis. Solid phase based-microextraction is an environmentally friendly preparation method which requires little solvent. Various adsorbents have been fabricated for microextraction processes and frequently demonstrate good efficiency and selectivity. Composite adsorbents improve the extraction of organic compounds by making use of several adsorption interactions. There are two parts of a composite adsorbent that need to be considered before fabrication include a solid support and adsorption materials. Solid support materials for composite adsorbents have included hydrogel, cryogel, aerogel and magnetite nanoparticles. These solid supports help to increase the surface area and stability of the composite adsorbent, resulting in better extraction efficiency and reusability. This review focuses on the solid support and carbon and framework-based adsorption materials used to fabricate composite adsorbents for the microextraction of organic compounds.