Abstract This study was performed for the electrochemical determination of phenylurea herbicides, metoxuron, by using molecularly imprinting technique. p-phenylenediamine is chosen as the suitable monomer for the metoxuron imprinting. The optimum polymerization conditions (film growth rate, medium pH, monomer/template molecule ratio, polymer film thickness) were identified and molecularly imprinted polymers were electrochemically synthesized on the disposable pencil graphite electrodes. The extracting/removing of the template molecule from the polymer matrix is performed by chronoamperometry technique. Limit of detection was to be found as 2.75 µg/mL. The selectivity of the electrode was tested towards propanyl, 3,4-dichloroaniline, Urea and Diuron, which’s are the analogue molecules, and the electrodes exhibited very high selectivity in the presence of these analogues. The metoxuron imprinted electrode was tested with an agricultural product. Herbicide samples also achieved satisfactory results.

中文翻译：

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用于电化学测定甲氧脲的高选择性分子印迹聚合物传感器

摘要 本研究采用分子印迹技术电化学测定苯脲类除草剂甲氧脲。选择对苯二胺作为甲氧脲印迹的合适单体。确定了最佳聚合条件（膜生长速率、介质 pH 值、单体/模板分子比、聚合物膜厚度），并在一次性铅笔石墨电极上电化学合成了分子印迹聚合物。从聚合物基质中提取/去除模板分子是通过计时电流法技术进行的。检测限为 2.75 µg/mL。测试了电极对丙酰基、3,4-二氯苯胺、尿素和敌草隆的选择性，它们是类似分子，并且电极在这些类似物的存在下表现出非常高的选择性。甲氧脲印迹电极用农产品进行了测试。除草剂样品也取得了令人满意的结果。