College of Science, Hebei Agricultural University, Baoding 071001, China.
Department of Fundamental Courses, Hebei Agricultural University, Huanghua 061100, China.
J Chromatogr A. 2022 Dec 6;1685:463621. doi: 10.1016/j.chroma.2022.463621. Epub 2022 Oct 29.
Three aryl ketones-derived porous organic polymers (ATP-POPM, ATP-POPP and ATP-POPO) were fabricated through the aldol condensation reaction of acetylated triphenylsilane precursor (ATP) with different aromatic aldehydes for the first time. The ATP-POPM exhibited superior extraction capacity toward phenylurea herbicides (PUHs). A sensitive method for the simultaneous determination of six PUHs in water, tea drink and mushroom samples was developed with ATP-POPM as solid phase extraction adsorbent prior to high performance liquid chromatography ultraviolet detection. Under the optimized conditions, the linear response of PUHs was 0.09-80.0 ng mL for water, 0.18-100.0 ng mL for tea drinks and 4.50-200.0 ng g for mushroom samples. The detection limits (S/N=3) of the method were 0.03-0.10 ng mL, 0.06-0.18 ng mL, 1.50-4.50 ng g for water, tea drink and mushroom, respectively. The method recoveries for spiked samples were in the range of 80.7%-116.0%, with relative standard deviations less than 10.3%. The results proved that the established method was sensitive and suitable to detect PUHs with acceptable accuracy and precision. This work provided a powerful tool to synthesize promising adsorbent by aldol condensation reaction for detecting six PUHs simultaneously in real samples.
三种芳基酮衍生的多孔有机聚合物（ATP-POPM、ATP-POPP 和 ATP-POPO）是通过乙酰化三苯硅烷前体（ATP）与不同芳香醛的缩合反应首次制备的。ATP-POPM 对苯脲类除草剂（PUHs）具有优异的萃取能力。本文以 ATP-POPM 为固相萃取吸附剂，建立了高效液相色谱紫外检测法同时测定水中、茶饮料和蘑菇样品中六种 PUHs 的灵敏方法。在优化条件下，PUHs 在水中的线性响应范围为 0.09-80.0 ng mL ，在茶饮料中的线性响应范围为 0.18-100.0 ng mL ，在蘑菇样品中的线性响应范围为 4.50-200.0 ng g 。该方法的检出限（S/N=3）为 0.03-0.10 ng mL ，0.06-0.18 ng mL ，1.50-4.50 ng g ，用于水、茶饮料和蘑菇。加标样品的回收率在 80.7%-116.0%之间，相对标准偏差小于 10.3%。结果表明，该方法灵敏、适用于实际样品中六种 PUHs 的同时检测，具有良好的准确性和精密度。这项工作为通过缩合反应合成有前途的吸附剂提供了有力的工具，用于同时检测实际样品中的六种苯脲类除草剂。
