化学
化学发光
检出限
石墨烯
氯霉素
分析物
试剂
色谱法
复合数
纳米技术
有机化学
生物化学
复合材料
材料科学
抗生素
作者
Bing Jia,Xin He,Peng Cui,Juxiang Liu,Jian Ping Wang
标识
DOI:10.1016/j.aca.2019.02.044
摘要
In this study, a novel composite was synthesized by polymerizing the dummy-template molecularly imprinted microspheres on the surface of magnetic graphene. This composite was used as recognition reagent and energy acceptor to develop a platform for determination of chloramphenicol according to the principle of chemiluminescence resonance energy transfer. The light signal was induced with luminolH2O24-(imidazole-1-yl)phenol system, and the chemiluminescence intensity was positively correlated with the analyte concentration. The limit of detection for chloramphenicol in meat sample was 2.0 pg/g, and the recoveries from the standard fortified blank meat sample were in the range of 69.5%–97.3%. Furthermore, one single assay could be finished within 10 min, and the magnetic composite could be reused for at least thirty times. Therefore, this platform could be used as a rapid, simple, sensitive, accurate and recyclable tool for screening the residue of chloramphenicol in meat.
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