Magnetic solid phase preconcentration of cadmium in water samples using sulfonic acid functionalized Kit-6 magnetite mesoporous nanocomposites followed by flame atomic absorption spectrometry

Magnetic solid-phase extraction of pyrethroid and neonicotinoid insecticides separately in environmental water samples based on alkaline or acidic group-functionalized mesoporous silica

“…The material magnetism decreases gradually due to the non-magnetic layers such as SiO 2 , KIT-6, –NH 2 , and –COOH functional groups on the surface. 32 Although the magnetic saturation intensity of FKN and FKC NPs is obviously turned down, it is enough to meet the magnetic separation requirements. As shown in the top-left and bottom-right inset images of Fig.…”

“…[26][27][28][29][30] There are also a few applications in MSPE in the recent years. 31,32 The strong force between the material and the analyte guarantees a successful MSPE process. It is important to design and modify the surface of KIT-6 to construct suitable interactions.…”