国家/地区
IPC部 B（2）
IPC大类 B01（2）
IPC小类 B01D（2）
IPC B01D015/08（2）
发明人 ZHANG L（2）
公开年
申请年
专利权人

Preparation of modified graphene oxide-coated silica gel useful as chromatographic filler, involves mixing silica gel with toluene, adding (aminopropyl)triethoxysilane, aqueous graphene oxide solution and ionic liquid and reacting.

CAO X, MA B, ZHOU M, GUO L, ZHU Y, WANG H, LI X, WANG Q, ZHANG S, TANG Z, ZHANG W, ZHANG L, DING Y

Solid-phase extraction column used in pre-treatment of chemical sample, comprises monolayered graphene or multi-layered graphene, or modified graphene as solid-phase extraction agent filled within separation column.

ZHANG M, ZHANG L