Sample Preparation for Chromatography with Nanomaterials

Sample treatment has been the most beneficial step in the use of nanomaterials in chromatographic analysis. Nanomaterials have been extensively employed for the isolation and preconcentration of target analytes from different types of samples. Their high sorption capacity and unique physicochemical properties result in a higher enrichment factor, which confer the required analytical sensitivity and selectivity. The aim of this work is to present some recent developments on sample preparation techniques utilizing nanomaterials in combination with chromatographic techniques for the identification and quantification of environmental pollutant compounds that raise the most concern such as polycyclic aromatic hydrocarbons, pesticides, and pharmaceuticals. The most representative works published in the last 5 years (2012–2016) are presented.