UIO-66 crystals were explored for the first time to adsorb neonicotinoid insecticides in environmental water samples. HPLC coupled with tandem MS was used for quantification and determination of neonicotinoid insecticides. UiO-66 crystals was successfully synthesized by a simple constant-temperature bath method. Synthesized UiO-66 was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetry and nitrogen adsorption porosimetry (NAP), which demonstrated a uniform particle size, a large Brunauer–Emmett–Teller (BET) surface area and high thermostability. The adsorbing results showed that UIO-66 crystals could be used as a promising adsorbents for rapid extraction of neonicotinoid insecticides and be reused at least 10 times. Under the optimized conditions, the limits of detection (LODs, S/N = 3) and limits of quantification (LOQs, S/N = 10) for the five insecticides were found to be 0.02–0.4 ng/mL and 0.05–1.0 ng/mL, respectively. This developed approach not only provided more simple and sensitive method, as well as possessing satisfactory recovery for neonicotinoid insecticides, but also for other traces in environmental samples.

首次探索了UIO-66晶体来吸附环境水样中的新烟碱类杀虫剂。HPLC与串联MS结合用于新烟碱类杀虫剂的定量和测定。通过简单的恒温浴法成功地合成了UiO-66晶体。合成的UiO-66的特征在于X射线衍射（XRD），扫描电子显微镜（SEM），热重法和氮吸附孔隙率法（NAP），它们表现出均匀的粒径，大的Brunauer-Emmett-Teller（BET）表面积和高热稳定性。吸附结果表明，UIO-66晶体可用作快速提取新烟碱类杀虫剂的有前途的吸附剂，可重复使用至少10次。在优化的条件下，检测限（LOD，S / N = 3），这五种杀虫剂的定量限（LOQ，S / N = 10）分别为0.02–0.4 ng / mL和0.05–1.0 ng / mL。这种先进的方法不仅提供了更简单，更灵敏的方法，而且对新烟碱类杀虫剂具有令人满意的回收率，而且还对环境样品中的其他痕迹提供了满意的回收率。