国家/地区 中国（6）
IPC部 B（6）
IPC大类 B01（6） G01（3） G08（2）
IPC小类 B01D（6）
IPC G01N030/06（3） B01D046/10（2） G01N030/72（2）
发明人
公开年 2022（5）
申请年 2022（6）
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

Low thermal resistance phase change cold plate, has cooling pipe fixedly installed on inner wall of phase change cold plate main body, connecting pipe fixedly connected to bottom part of liquid discharging pipe, and bottom part of connecting pipe fixedly connected with shunt chamber.

GUO J

Optical fiber module switching device, has switching box whose upper surface is detachably connected with cover plate, where middle position of lower surface of cover plate is fixedly connected with desiccant storage box.

WEI X, FENG C

Electric fire monitoring device for fire fighting internet of things, has camera base whose left and right ends are opened with ventilation hole, and fan installed between inner walls of ventilation holes.

CUI K, DU M, WANG Z

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