Magnetic nanoparticles (MNPs) are attracting great interest for developing
solid phase extraction (SPE). Nanoparticles involved in SPE processes present clear
advantages with respect conventional SPE materials because of their high stability,
simple preparation, and the short time involved in the sample preparation; avoiding
time-consuming column passing and filtration, as it is in conventional SPE methods. In
this e-book chapter, the progress involving MNPs used for SPE is presented and
discussed. Taken into account the different types of MNPs used in this field, the
different MNPs obtained by attaching inorganic components (e.g., metal oxides,
carbon, noble and semiconductor metals), or organic molecules (e.g., surfactants and
magnetic molecularly imprinted polymers, MMIP), are described through recent
reported analytical applications of MNPs in SPE. The potential transfer of these
analytical tools for daily work in routine laboratories is also pointed out.
Keywords: Analytical applications, Bioanalytical analysis, Clean-up, Environmental
analysis, Food analysis, Functionalization, Magnetic nanoparticles,
Magnetic solid phase extraction, Metal oxides, Modified surfactants, Molecular
imprinted polymers, Preconcentration, Sample preparation, Silica, Synthesis
schemes, Titanium oxide, Zirconium-coated.
