title: Nanometer-sized materials for solid-phase extraction of trace elements.
abstract: This review presents a comprehensive update on the state-of-the-art of nanometer-sized materials in solid-phase extraction (SPE) of trace elements followed by atomic-spectrometry detection. Zero-dimensional nanomaterials (fullerene), one-dimensional nanomaterials (carbon nanotubes, inorganic nanotubes, and nanowires), two-dimensional nanomaterials (nanofibers), and three-dimensional nanomaterials (nanoparticles, mesoporous nanoparticles, magnetic nanoparticles, and dendrimers) for SPE are discussed, with their application for trace-element analysis and their speciation in different matrices. A variety of other novel SPE sorbents, including restricted-access sorbents, ion-imprinted polymers, and metal-organic frameworks, are also discussed, although their applications in trace-element analysis are relatively scarce so far.
authors.affiliation: Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan, 430072, China, binhu@whu.edu.cn.
authors.forename: Bin
authors.initials: B
authors.lastname: Hu
authors.forename: Man
authors.initials: M
authors.lastname: He
authors.forename: Beibei
authors.initials: B
authors.lastname: Chen
mesh_terms: D000818:Animals; D050091:Dendrimers; D037741:Fullerenes / Q000737:chemistry; D008280:Magnetics; D054802:Molecular Imprinting; D053758:Nanoparticles; D049329:Nanostructures / Q000737:chemistry*; D037742:Nanotubes, Carbon / Q000737:chemistry; D053770:Nanowires / Q000737:chemistry; D052616:Solid Phase Extraction / Q000295:instrumentation* / Q000379:methods*; D013054:Spectrophotometry, Atomic / Q000379:methods; D014131:Trace Elements / Q000032:analysis*
chemical_list: D050091:Dendrimers; D037741:Fullerenes; D037742:Nanotubes, Carbon; D014131:Trace Elements