Carbon nanotubes: Solid-phase extraction.
Since the first report in 1991, carbon nanotubes (CNTs) have shown great possibilities for a wide variety of processes and applications, which include their use as electrodes, sensors (gas, enzymatic, etc.), nanoprobes, electronic materials, field emitters, etc. The combination of structures, dimensions and topologies has provided physical and chemical attractive properties that are unparalleled by most known materials. Their applications have also reached the Analytical Chemistry field in which CNTs are being used as matrices in matrix assisted laser desorption ionization, stationary phases in either gas chromatography, high performance liquid chromatography or capillary electrochromatography, also as pseudostationary phases in capillary electrophoresis, etc. as well as new solid-phase extraction (SPE) materials. Concerning this last application the number of works has considerably increased in the last five years. This review article pretends to focus on the most important features and different applications of SPE using CNTs (including matrix solid-phase dispersion and solid-phase microextraction) covering articles published since their introduction up to now (September 2009).
Ravelo-Pérez
Lidia M
LM
Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Química, Universidad de La Laguna (ULL), Avenida Astrofísico Francisco Sánchez, s/n, 38206 La Laguna, Tenerife, Spain.
Herrera-Herrera
Antonio V
AV
Hernández-Borges
Javier
J
Rodríguez-Delgado
Miguel Angel
MA
D007287:Inorganic Chemicals / Q000737:chemistry; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure; D010575:Pesticides / Q000737:chemistry; D004364:Pharmaceutical Preparations / Q000737:chemistry; D010795:Phthalic Acids / Q000737:chemistry; D052616:Solid Phase Extraction / Q000379:methods*
D007287:Inorganic Chemicals; D037742:Nanotubes, Carbon; D010575:Pesticides; D004364:Pharmaceutical Preparations; D010795:Phthalic Acids