Magnetic colloid mediated recovery of cadmium ions from an aqueous solution using a flow-through hybrid field-gradient device

Optimization of preconcentration procedure using magnetic nanoparticles for the determination of manganese in cereal samples

“…The greatest advantage of this procedure is that the desired materials can be separated from sample solution by a simple and compact process producing less secondary wastes. Other advantages are the large active surface area for a given mass of particles; the ability to process solutions that contain suspended solids (Takafuji et al, 2004;Buchholz et al, 1997); the avoidance of channeling effects that are common in packed beds; and the ability to immobilize the target particles at a specific location in a column by the application of an external magnetic field (Ghebremeskel and Bose, 2002). Literature suggests that magnetic micro-and nanoparticles have widespread application as separation tools in the purification of nucleic acids, proteins and peptides, bacteria, and metals, because of their ability to quickly agglomerate and re-suspend in response to changes in magnetic forces (Pal and Alocilja, 2009;Liang et al, 2007;Suleiman et al, 2009;Yang et al, 2004).…”