Abstract

Atrazine-imprinted reduced graphene oxide composite with its enhanced functionalities and porous surface was successfully synthesized and applied for the selective determination of atrazine in complex matrices. Scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, Fourier transform infrared spectroscopy, and X-ray diffraction studies revealed the imprinted polypyrrole beads formation on the reduced graphene oxide lining. Resultant composite was used to modify screen-printed electrode which then showed improved properties for voltammetric determination of atrazine. Measurements were carried out via square wave voltammetry giving a peak at − 0.9 V corresponding to the reduction of atrazine heterocyclic moiety. Obtained LOD and LOQ for atrazine were found to be 0.4 nmol/dm³ and 1.2 nmol/dm³, respectively, at optimized parameters. The method was applied for the atrazine determination in complex aqueous matrices.

Graphic abstract

中文翻译：

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印迹聚吡咯珠和还原型氧化石墨烯的复合物，用于复杂基质中阿特拉津的特异性电化学传感

摘要

成功合成了具有增强功能和多孔表面的去津印迹还原氧化石墨烯复合材料，并将其用于复杂基质中selective去津的选择性测定。扫描电子显微镜，透射电子显微镜，拉曼光谱，傅立叶变换红外光谱和X射线衍射研究表明，在还原的氧化石墨烯衬里上印有聚吡咯珠的形成。所得复合材料用于修饰丝网印刷电极，然后显示出改进的伏安法测定determination去津的性能。通过方波伏安法进行测量，得到在-0.9V处的峰，其对应于at去津杂环部分的还原。发现at去津的LOD和LOQ为0.4 nmol / dm ³和在最佳参数下分别为1.2 nmol / dm ³和。该方法用于复杂水溶液基质中the去津的测定。

图形摘要