Graphene Oxide Molecularly Imprinted Polymers as Novel Adsorbents for Solid-Phase Microextraction for Selective Determination of Norfloxacin in the Marine Environment

文献类型： 外文期刊

第一作者： Chen, Jianlei

作者： Chen, Jianlei;Cui, Zhengguo;Qu, Keming;Chen, Jianlei;Tan, Liju;Wang, Jiangtao

作者机构：

关键词： marine environment; norfloxacin; solid-phase microextraction; graphene oxide; molecularly imprinted polymers

期刊名称：POLYMERS （ 影响因子：4.967； 五年影响因子：5.063 ）

ISSN：

年卷期： 2022 年 14 卷 9 期

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收录情况： SCI

摘要： In this study, a novel sample pretreatment strategy of solid-phase microextraction using graphene oxide molecularly imprinted polymers as adsorbents coupled with high-performance liquid chromatography was developed to detect norfloxacin in the marine environment. As a carrier, the imprinted polymers were synthesized by precipitation polymerization with graphene oxide. Compared with graphene oxide non-imprinted polymers, the graphene oxide molecularly imprinted polymers exhibited higher adsorption capacity towards norfloxacin. The synthesized polymeric materials were packed into a molecularly imprinted solid-phase microextraction cartridge, and critical parameters affecting the extraction process were optimized. Under the optimized molecular imprinted solid-phase microextraction condition, the proposed method was applied to the analysis of norfloxacin for seawater and fish with satisfactory recovery (90.1-102.7%) and low relative standard deviation (2.06-5.29%, n = 3). The limit of detection was 0.15 mu g L-1 and 0.10 mu g kg(-1) for seawater and fish, respectively. The study revealed that the proposed molecularly imprinted solid-phase microextraction represents an attractive sample pretreatment strategy for the analysis of norfloxacin in the marine environment.

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