The role of graphene-based sorbents in modern sample preparation techniques

Autor(es)

de Toffoli, Ana Lucia ^[1] ; Soares Maciel, Edvaldo Vasconcelos ^[1] ; Fumes, Bruno Henrique ^[1] ; Lancas, Fernando Mauro ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Chem Sao Carlos, Sao Carlos, SP - Brazil

• Tipo de documento: Artigo de Revisão
• Fonte: JOURNAL OF SEPARATION SCIENCE; v. 41, n. 1, p. 288-302, JAN 2018.
• Citações Web of Science: 29

Resumo

The application of graphene-based sorbents in sample preparation techniques has increased significantly since 2011. These materials have good physicochemical properties to be used as sorbent and have shown excellent results in different sample preparation techniques. Graphene and its precursor graphene oxide have been considered to be good candidates to improve the extraction and concentration of different classes of target compounds (e.g., parabens, polycyclic aromatic hydrocarbon, pyrethroids, triazines, and so on) present in complex matrices. Its applications have been employed during the analysis of different matrices (e.g., environmental, biological and food). In this review, we highlight the most important characteristics of graphene-based material, their properties, synthesis routes, and the most important applications in both off-line and on-line sample preparation techniques. The discussion of the offline approaches includes methods derived from conventional solid-phase extraction focusing on the miniaturized magnetic and dispersive modes. The modes of micro-extraction techniques called stir bar sorptive extraction, solid phase microextraction, and microextraction by packed sorbent are discussed. The on-line approaches focus on the use of graphene-based material mainly in on-line solid phase extraction, its variation called in-tube solid-phase microextraction, and on-line microdialysis systems. (AU)

• Processo FAPESP: 15/15462-5 - Emprego do grafeno como material sorvente em técnicas miniaturizadas de preparo de amostra.
• Beneficiário: Bruno Henrique Fumes
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 14/07347-9 - Desenvolvimento de novos materiais e dispositivos para técnicas miniaturizadas de preparo de amostras na área de segurança alimentar
• Beneficiário: Fernando Mauro Lanças
• Modalidade de apoio: Auxílio à Pesquisa - Regular