A selective analytical method for the simultaneous determination of 20 triazole fungicides and plant growth regulators in cucumber samples was developed using solid-phase extraction with specific molecularly imprinted polymers (MIPs) as adsorbents. The MIPs were successfully prepared by precipitation polymerization using triadimefon as the template molecule, methacrylic acid as the functional monomer, trimethylolpropane trimethacrylate as the crosslinker, and acetonitrile as the porogen. The performance and recognition mechanism for both the MIPs and non-molecularly imprinted polymers were evaluated using adsorption isotherms and adsorption kinetics. Liquid chromatography-tandem quadrupole mass spectrometry was used to identify and quantify the target analytes. The solid-phase extraction using the MIPs was rapid, convenient, and efficient for extraction and enrichment of the 20 triazole pesticides from cucumber samples. The recoveries obtained at three concentration levels (1, 2, and 10 μg L⁻¹) ranged from 82.3% to 117.6% with relative standard deviations of less than 11.8% (n = 5) for all analytes. The limits of detection for the 20 triazole pesticides were all less than 0.4 μg L⁻¹, and were sufficient to meet international standards.

建立了一种同时测定黄瓜样品中20种三唑类杀菌剂和植物生长调节剂的选择性分析方法，该方法采用固相萃取技术，并采用特定的分子印迹聚合物（MIP）作为吸附剂。通过以三唑酮为模板分子，甲基丙烯酸为功能单体，三羟甲基丙烷三甲基丙烯酸酯为交联剂，乙腈为致孔剂，通过沉淀聚合成功制备了MIP。使用吸附等温线和吸附动力学评估了MIP和非分子印迹聚合物的性能和识别机理。液相色谱-串联四极杆质谱用于鉴定和定量目标分析物。使用MIP进行固相萃取快速，方便，高效地从黄瓜样品中提取和富集20​​种三唑农药。在三种浓度水平（1、2和10μgL的情况下获得的回收率^-1）的范围从82.3％到117.6％， 所有分析物的相对标准偏差均小于11.8％（n = 5）。20种三唑类农药的检出限均小于0.4μgL ^-1，足以满足国际标准。