A hypercrosslinked organic polymer material (named as PPTPA) was prepared by a simple one-step self-polycondensation of triphenylamine. A series of characterization experiments, including N₂ adsorption, scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectra, and thermogravimetric analysis, were carried out to evaluate the morphology, structure and other intrinsic properties of the PPTPA. To investigate its adsorption performance, the PPTPA was used as the solid-phase extraction adsorbent for the extraction of phenylurea herbicides from water, milk and tomato juice samples followed by high-performance liquid chromatographic analysis. Under optimum conditions, good linearity for the analytes was observed in the range of 0.05–40.0 ng mL⁻¹, 0.1-40.0 ng mL⁻¹ and 0.5–40.0 ng mL⁻¹ for water, milk and tomato juice samples, respectively. The established method also showed low limits of detection (S/N = 3) in the range of 0.008–0.01 ng mL⁻¹, 0.01–0.03 ng mL⁻¹ and 0.05–0.1 ng mL⁻¹ for water, milk and tomato juice samples, respectively. The possible adsorption mechanism of the PPTPA towards the analytes was investigated, and the results demonstrated that the hydrogen bonding was the main interaction force between the PPTPA and the analytes. It suggests that the PPTPA can serve as a promisingadsorbent for the efficient pre-enrichment of organic compounds with more hydrogen-bonding donor sites.

通过三苯胺的简单一步自缩聚反应制备了超交联的有机聚合物材料（称为PPTPA）。进行了一系列表征实验，包括N ₂吸附，扫描电子显微镜，X射线衍射，傅立叶变换红外光谱和热重分析，以评估PPTPA的形态，结构和其他固有性质。为了研究其吸附性能，PPTPA用作固相萃取吸附剂，用于从水，牛奶和番茄汁样品中萃取苯基脲除草剂，然后进行高效液相色谱分析。在最佳条件下，在0.05-40.0纳克mL范围内，观察到良好的线性的分析物^-1，0.1-40.0每mL分别用于水，牛奶和番茄汁样品的^-1和0.5–40.0 ng mL ^-1。所建立的方法也表现出低检测极限（S / N = 3）中的0.008-0.01纳克mL范围内^-1，0.01-0.03纳克毫升^-1和0.05-0.1纳克毫升^-1为水，牛奶和番茄汁样本。研究了PPTPA对分析物的可能吸附机理，结果表明氢键是PPTPA与分析物之间的主要相互作用力。这表明，PPTPA可以用作有效预富集具有更多氢键供体位点的有机化合物的有前途的吸附剂。