Effective extraction is a key step in the determination of sulfonylurea herbicides (SUHs) in complicated samples. According to the chemical properties of SUHs, a new monolithic adsorbent utilizing acrylamidophenylboronic acid and vinylimidazole as mixed functional monomers was synthesized. The new adsorbent was employed as the extraction phase of multiple monolithic fiber solid-phase microextraction (MMF-SPME) of SUHs, and the extracted SUHs were determined by high-performance liquid chromatography with diode array detection (HPLC-DAD). Results well evidence that the prepared adsorbent could extract SUHs in environmental waters and soil effectively through multiply interactions such as boronate affinity, dipole-dipole and π-π interactions. Under the optimized extraction conditions, the limits of detection for target SUHs in environmental water and soil samples were 0.018–0.17 μg/L and 0.14–1.23 μg/kg, respectively. At the same time, the developed method also displayed some analytical merits including wide linear dynamic ranges, good method reproducibility, satisfactory sensitivity and low consume of organic solvent. Finally, the developed were successfully applied to monitor trace SUHs in environmental water and soil samples. The recoveries at three fortified concentrations were in the range of 70.6–119% with RSD below 11% in all cases. The obtained results well demonstrate the excellent practical applicability of the developed MMF-SPME-HPLC-DAD method for the monitoring of SUHs in water and soil samples.

有效提取是测定复杂样品中磺酰脲类除草剂（SUHs）的关键步骤。根据SUHs的化学性质，合成了一种新的以丙烯酰胺基苯基硼酸和乙烯基咪唑为混合功能单体的整体式吸附剂。该新型吸附剂被用作SUHs的多块单片纤维固相微萃取（MMF-SPME）的萃取相，并通过高效液相色谱-二极管阵列检测（HPLC-DAD）测定萃取的SUHs。结果充分证明，所制备的吸附剂可通过多重相互作用（例如硼酸酯亲和力，偶极-偶极和π-π相互作用）有效地提取环境水中和土壤中的SUHs。在优化的提取条件下，环境水和土壤样品中目标SUH的检出限分别为0.018–0.17μg/ L和0.14–1.23μg/ kg。同时，所开发的方法还显示出一些分析优点，包括线性动态范围宽，方法重现性好，灵敏度令人满意以及有机溶剂的消耗低。最终，该开发成功地用于监测环境水和土壤样品中的痕量SUH。在所有情况下，三种强化浓度下的回收率在70.6–119％范围内，RSD低于11％。获得的结果很好地证明了开发的MMF-SPME-HPLC-DAD方法在监测水和土壤样品中的SUH方面具有极好的实用性。所开发的方法还显示出一些分析优点，包括宽的线性动态范围，良好的方法重现性，令人满意的灵敏度和有机溶剂的低消耗量。最终，该开发成功地用于监测环境水和土壤样品中的痕量SUH。在所有情况下，三种强化浓度下的回收率在70.6–119％范围内，RSD低于11％。获得的结果很好地证明了开发的MMF-SPME-HPLC-DAD方法用于监测水和土壤样品中的SUH的极好的实际适用性。所开发的方法还显示出一些分析优点，包括宽的线性动态范围，良好的方法重现性，令人满意的灵敏度和有机溶剂的低消耗量。最终，该开发成功地用于监测环境水和土壤样品中的痕量SUH。在所有情况下，三种强化浓度下的回收率在70.6–119％范围内，RSD低于11％。获得的结果很好地证明了开发的MMF-SPME-HPLC-DAD方法用于监测水和土壤样品中的SUH的极好的实际适用性。在所有情况下，三种强化浓度下的回收率在70.6–119％范围内，RSD低于11％。获得的结果很好地证明了开发的MMF-SPME-HPLC-DAD方法用于监测水和土壤样品中的SUH的极好的实际适用性。在所有情况下，三种强化浓度下的回收率在70.6–119％范围内，RSD低于11％。获得的结果很好地证明了开发的MMF-SPME-HPLC-DAD方法用于监测水和土壤样品中的SUH的极好的实际适用性。