Abstract
Due to its large surface area, good mechanism strength and thermal stability, graphene is recognized as an ideal extractant of organic matters, especially aromatics and has been widely used in pretreatment of environmental samples, such as in solid-phase extraction (SPE), solid phase microextraction (SPME) and dispersive solid-phase extraction (d-SPE). Modifying the graphene with three-dimensional aerogel and compounds can improve its extraction performance. Graphene can extract organics because of the delocalized π bond, its hydrophobicity, electrostatic interaction and the hydrogen bond, and its extraction performance differs as the conditions vary. In particular, the pH value, the ionic strength, the extraction temperature and time, the eluant, the desorption temperature and time have significant impacts on the extraction results. In this paper, we analyzed the impacts of these factors from the mechanism perspective, with a vision to provide a theoretical basis for application of graphene and its compounds in pretreatment of environmental samples.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
