Advances in Composites for Solid-Phase (Micro) Extraction

CompositeComposite materials materials prepared by combining various functional materials contain the useful propertiesProperties of those functional materials. These promising propertiesProperties together with the facile designability and functionalization make composite materialsComposite materials to be ideal adsorbentsAdsorbent in sample preparation. In this chapter, we discuss two important sample preparation techniques: solid-phasePhase extraction and solid-phase microextractionSolid-phase microextraction based on various compositesComposite as the adsorbents; also, their applicationsApplication in preconcentrating biological moleculesBiological molecules, organic compoundsOrganic compounds, and metal ionsMetal ions are discussed. Future research directions and challenges of the composite materialsComposite materials are identified.