Magnetic solid phase extraction of non-ionic surfactants from water

Determination of quinolones in milk samples using a combination of magnetic solid‐phase extraction and capillary electrophoresis

“…The magnetic adsorbents with analytes adsorbed on the surface can be isolated and eluted in an appropriate solvent. The most attractive property of MSPE is the easy isolation of the magnetic adsorbents from sample solutions by the application of an external magnetic field, minimizing the sample treatment time []. MSPE has allowed for the selective separation of organic contaminants including antibiotics, anti‐inflammatory drugs, pesticides, and phenolic compounds that are present in different matrices [].…”

Preconcentration of middle oxyethylated nonylphenols from water samples on magnetic solid phase

“…Recently several nonionic surfactants have been preconcentrated from water by MSPE, using magnetically modified materials, such as activated carbon, hydrophobic polymer PODMP, polyamide DPA-6S or Al 2 O 3 [14]. The work presented here explores the use of MSPE to extract Tergitol, a model surfactant of middle oxyethylated NPs from volumes up to 500 ml from real water samples.…”

Amino acid-modified graphene oxide magnetic nanocomposite for the magnetic separation of proteins

“…[3][4][5] Compared to conventional solid-phase extraction (SPE), the magnetic materials do not need to be packed into the cartridge, which avoids the problem of column clogging encountered in SPE. In addition, the phase separation of magnetic materials is much more conveniently performed by applying an external magnetic eld, 6 so that magnetic adsorbents can be easily recycled. 7,8 Furthermore, the magnetic nanocomposites have a large specic surface area, so extraction and separation can be attained with only a small amount of adsorbents and a shorter equilibration time, improving the extraction capacity and efficiency.…”