Department of Chemistry, College of Science, Hebei Agricultural University, Baoding, China.
J Sep Sci. 2018 Aug;41(16):3285-3293. doi: 10.1002/jssc.201800392. Epub 2018 Jul 11.
A magnetic polytriphenylamine porous organic polymer was prepared through simple self-polycondensation of triphenylamine followed by coprecipitation with Fe and Fe . It was applied as a magnetic adsorbent for the extraction of six benzoylurea insecticides from tomato, cucumber, and watermelon samples before their high-performance liquid chromatography and mass spectral detection. Under the optimized experimental conditions, the established method gave a low limit of detection ranging from 0.05 to 0.1 ng/g and a good linear response ranging from 0.2 to 40 ng/g with coefficients of determination >0.99. The method recoveries for spiked analytes at the concentrations of 3 and 15 ng/g in real samples were in the range of 87.7-106.7% with the relative standard deviations <6.4%. The results indicated that it had a good adsorption capability toward the target analytes due to the π-stacking and hydrogen bonding interactions. The polymer material showed great potential in the efficient extraction of organic compounds from real samples with complex matrixes.
通过简单的三苯胺自缩聚，然后与 Fe 和 Fe 共沉淀，制备了一种磁性聚三苯胺多孔有机聚合物。将其用作磁性吸附剂，用于高效液相色谱和质谱检测前从番茄、黄瓜和西瓜样品中提取六种苯甲酰脲类杀虫剂。在优化的实验条件下，该方法的检测限低至 0.05-0.1ng/g，线性响应范围为 0.2-40ng/g，相关系数>0.99。在实际样品中，浓度为 3 和 15ng/g 的加标分析物的方法回收率在 87.7-106.7%之间，相对标准偏差<6.4%。结果表明，由于π-堆积和氢键相互作用，该聚合物材料对目标分析物具有良好的吸附能力。该聚合物材料在从复杂基质的实际样品中高效提取有机化合物方面具有很大的潜力。
