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首页> 外文期刊>RSC Advances >An electrochemical MIP sensor for selective detection of salbutamol based on a graphene/PEDOT:PSS modified screen printed carbon electrode
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An electrochemical MIP sensor for selective detection of salbutamol based on a graphene/PEDOT:PSS modified screen printed carbon electrode

机译：用于基于石墨烯/ PEDOT选择性检测Salbutamol的电化学MIP传感器：PSS改性丝网印刷碳电极

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摘要

A sensitive electrochemical MIP sensor for salbutamol detection based on a graphene nanocomposite modified screen-printed carbon electrode was successfully demonstrated. Insertion of the graphene/PEDOT: PSS layer prior to the MIP was aimed at enhancing the sensitivity of the sensor. Selection of a functional monomer was carried out using H-1-NMR titration and a computational calculation was used to further investigate the template-monomer interactions. The MIP layer was constructed on top of the highly conductive nanocomposite by co-electropolymerization of 3-aminophenylboronic acid and o-phenylenediamine in the presence of salbutamol. Using differential pulse voltammetry under optimal conditions, a linear response in the range of 1 nM to 1.2 mu M, with an exceptional detection limit of 100 pM (S/N = 3) was obtained. The established sensor exhibited good reproducibility, reusability and stability. Additionally, good selectivity in discriminating salbutamol from other structurally related compounds could also be realized. Determination of salbutamol in real swine meat and feed samples was also successfully carried out with good recovery results.
机译：基于石墨烯纳米复合材料改性丝网印刷碳电极的敏感电化学MIP传感器用于基于石墨烯纳米复合材料改性的碳电极。图石墨烯/ PEDOT：PSS层在MIP之前旨在提高传感器的灵敏度。使用H-1-NMR滴定进行功能性单体，使用计算计算来进一步研究模板 - 单体相互作用。在Salbutamol存在下通过3-氨基苯基硼酸和O-苯二胺的共聚聚合，在高导电纳米复合材料的顶部构建MIP层。在最佳条件下使用差分脉冲伏安法，获得1nm至1.2μm范围内的线性响应，获得卓越的100μm（s / n = 3）的卓越检测限。已建立的传感器表现出良好的再现性，可重用性和稳定性。另外，还可以实现从其他结构相关化合物中区分沙丁胺醇的良好选择性。在真正的猪肉和进料样品中的测定也成功地进行了良好的恢复结果。

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