Development of a reversed dispersive based graphene functionalized with multiwalled carbon nanotubes for detection ofβ2-agonists in pork by high-performance liquid chromatography  

作　　者：Ying-Wen Qian Xia Hong Cai-Xia Yuan Xin-Kui Zhou Hai-Ning He Dong-Shuai Wang 

机构地区：[1]Quality and Safety Technological Innovation Service Platform on Circulation of Animal Origin,Gansu Institute of Business and Technology,Lanzhou,Gansu 730010,China [2]Key Laboratory of Animal Products Safety Analysis and Detection Technology of Gansu Province,Lanzhou,Gansu 730010,China

出　　处：《Food Science and Human Wellness》2018年第2期163-169,共7页食品科学与人类健康（英文）

基　　金：This study was financially supported by the Program of Technology Gansu Province(1309RTSA025,1009FTGA018,1306TTPA036).

摘　　要：A reliable and inexpensive pretreatment procedure in the determination ofβ2-agonists in pork was developped.The procedure used a nanocomposite of multiwalled carbon nanotubes(CNTs)functionalized with graphene(rGO)as the reversed dispersive sorbent.It was analyzed after purification by highperformance liquid chromatography,the extraction time and the properties of the nanocomposite were optimized.Under optimized conditions,present method has linear response over concentration range of 0.5–50 ng/mL in pork samples with a satisfactory detection limit close to 0.1 ng/mL.The precisions of the current method(coefficient of variation)are lower than 5%,while recoveries are more than 98.3%.The nanocomposite exhibited high adsorptivity,long-term storage stability,satisfactory anti-interfering activity and high selectivity toward2-agonists compared with those of rGO and CNTs.

关 键 词：High-performance liquid chromatography GRAPHENE Multiwalled carbon nanotube RACTOPAMINE SALBUTAMOL 

分 类 号：TS251.51[轻工技术与工程—农产品加工及贮藏工程] O657.72[轻工技术与工程—食品科学与工程]