Nanomaterials in Chromatographic Sample Preparations

Abstract The recent developments in the use of nanomaterials (NMs) as sorbent substrates for the extraction and enrichment of trace chemicals from various matrices prior to their chromatographic determinations are described in this chapter. Several classes and forms of nanomaterials are been discussed in terms of their usability, advantages, and shortcomings. The nanomaterials discussed were classified based on the structure and/or chemical compositions of the final form of the materials used as sorbents. The effects of the physicochemical properties of nanomaterials on their efficiency as sorbents, and possibility of controlling them through structural design, modification of surface area, and incorporation of suitable components for improved performance are highlighted. Future perspectives for the application of nanomaterials in chromatographic sample preparations are outlined.