国家/地区 中国（3）
IPC部 B（3） G（3）
IPC大类 B01（3） G01（3）
IPC小类 B01D（3）
IPC G01N030/06（3）
发明人
公开年 2022（2）
申请年 2022（3）
专利权人

Magnetic solid phase extraction combined with gas chromatography-mass spectrometry/mass spectrometry to measure bactericide residue in fruit juice, comprises synthesizing ammonia-iron oxide-graphene oxide magnetic material powder, collecting sample and performing GC-MS/MS.

QIU Q, WANG J, YANG J, SHI Y, PING W, YANG Q

Functionalized solid-phase micro-extraction probe for detection of toxin content in living puffer fish, is prepared by coating graphene oxide-polyacrylonitrile solution on activated stainless-steel needle and polymerizing norepinephrine solution on its surface to form coating.

HU Y, JIANG S, MENG H, LIU Y

Preparing solid-phase microextraction probe based on covalent organic framework (COF)/reduced graphene oxide (rGO) hybrid material, comprises e.g. adding COF to GO solution, mixing by ultrasonic vibration to obtain mixed solution, obtaining COF/rGO hybrid material by reduction reaction.

YU C, ZHANG J