Journal
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
Volume 46, Issue 4, Pages 267-283Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10408347.2015.1034354
Keywords
Biological sample preparation; graphene; magnetic solid phase extraction; metal ions; organic pollutant; sample preparation
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Funding
- Ministry of Education Malaysia [10J43, 4F307]
- UTM
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Graphene is a new carbon-based material that is of interest in separation science. Graphene has extraordinary properties including nano size, high surface area, thermal and chemical stability, and excellent adsorption affinity to pollutants. Its adsorption mechanisms are through non-covalent interactions (- stacking, electrostatic interactions, and H-bonding) for organic compounds and covalent interactions for metal ions. These properties have led to graphene-based material becoming a desirable adsorbent in a popular sample preparation technique known as solid phase extraction (SPE). Numerous studies have been published on graphene applications in recent years, but few review papers have focused on its applications in analytical chemistry. This article focuses on recent preconcentration of trace elements, organic compounds, and biological species using SPE-based graphene, graphene oxide, and their modified forms. Solid phase microextraction and micro SPE (mu SPE) methods based on graphene are discussed.
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