Ni-functionalized submicron mesoporous silica particles as a sorbent for metal affinity chromatography
作者： Dmitry A Kurdyukov , Ekaterina N Chernova , Yana V Russkikh , Daniil A Eurov , Vasily V Sokolov
DOI: 10.1016/J.CHROMA.2017.07.043
关键词: Nickel 、 Desorption 、 Adsorption 、 HYDROSOL 、 Chemistry 、 Sorbent 、 Metal 、 Mesoporous silica 、 Chromatography 、 Dispersity
摘要: In this research, a novel IMAC sorbent with high specificity for chlorine-containing compounds was developed. Ni-functionalized monodisperse spherical mesoporous silica particles of 500±25nm diameter were synthesized and their metal affinity properties studied the use diclofenac as model substance. The aggregatively stable in pH range 3-12. demonstrated adsorption capacity (0.60±0.06μg DCF per 1mg sorbent) adsorption/desorption rate (20 5min enough saturation desorption DCF, correspondingly). A mixture eluents addition PFOS providing almost complete recovery (98%) first proposed. monodispersity sedimentation aggregative stability provide formation hydrosol even under ultrasound treatment which makes mSiO2/Ni suitable batch chromatography.
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