摘要
石墨烯是继富勒烯和碳纳米管之后发现的又一种新型碳同素异形体,独特的二维结构,良好的化学稳定性,优良的导电、导热、光学及机械性能,使其迅速成为物理、化学、材料、传感和生物医药等领域的研究热点.由于超大的比表面积(理论上可达2 630m2/g,石墨和碳纳米管分别是10和1 315m2/g)、完美的杂化结构以及大的π-π共轭体系,石墨烯基纳米材料在样品前处理及样品预富集领域也备受关注.本文综述了近年来石墨烯作为固相萃取、固相微萃取、磁性纳米及二氧化钛复合材料在环境、生物、食品、药物等样品制备领域的研究现状,为更好开发石墨烯基纳米材料在复杂和痕量样品前处理中的应用提供参考.
As a new form of carbon materials,graphene has attracted considerable interest and become one of the most exciting research topics because of its outstanding material,physical and chemical properties.Due to its ultrahigh specific surface area（theoretical value 2 630m2/g compared to 10m2/g of graphite and 1 315m2/g of carbon nanotube）andπ-electron rich structure,graphene is emerging as a promising sorbent material in analytical sample preparation and sample preconcentration.In this article,the recent applications of graphene in sample preparation techniques such as solid phase extraction（SPE）,solid phase microextraction（SPME）,magnetic solid phase extraction（MSPE）as well as graphene and titanium dioxide nanocomposites for the analysis of environmental,biological and food samples were reviewed.
出处
《河南大学学报（自然科学版）》
CAS
北大核心
2014年第3期277-285,共9页
Journal of Henan University:Natural Science
基金
国家自然科学基金项目(21305029)
高等学校博士学科点专项科研基金项目(20134103120002)
棉花生物学国家重点实验室开放课题项目(CB2013A22)
福州大学食品安全分析与检测教育部重点实验室开放基金项目(No.FS1309)
关键词
石墨烯
固相萃取
固相微萃取
磁性纳米材料
样品前处理技术
graphene
solid phase extraxtion（SPE）
solid phase microextraction（SPME）
magnetic nanomaterials
sample preparation techniques
