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Unique thiophilic affinity MOFs as specific sorbent for disulfide bond-containing compounds capture

Wen Qijuan,Sun Tanghao,Wang Qi,Huang Wenwen,Liu Yunchun

Stationary sorbents play a key role in the separation process. We present here a kind of unique separative material, called thiophilic affinity MOFs, as specific sorbent for the capture of compounds containing disulfide-bond. The sorbent was obtained through epoxide ring-opening reaction among MOF-5-NH 2 , tris(2,3-epoxypropyl) isocyanurate, and thiophilic reagents under mild reaction condition. The synthesized sorbent was characterized with X-ray diffraction, scanning electron microscope, transmission electron microscope, Fourier transform infrared, thermogravimetric analysis and N 2 absorption. The capillary electrophoresis experiments verified their high specific recognization and separation for disulfide bond-containing compounds.