Dispersive liquid-liquid microextraction based on the solidification of deep eutectic solvent for the determination of benzoylureas in environmental water samples
Dispersive liquid-liquid microextraction based on the solidification of deep eutectic solvent for the determination of benzoylureas in environmental water samples
复制标题
基于低共熔溶剂固化的分散液液微萃取测定环境水样中的苯甲酰脲
DOI：
10.1002/jssc.201700890
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发表时间：
2017
影响因子：
3.1
通讯作者：
Zhou Wenfeng
中科院分区：
文献类型：
--
作者：
Zeng Haozhe;Qiao Kexin;Li Xin;Yang Miyi;Zhang Sanbing;Lu Runhua;Li Jing;Gao Haixiang;Zhou Wenfeng
我们提出了一种新型分散液液微萃取方法，该方法基于深共熔溶剂的固化，结合具有可变波长检测的高效液相色谱法，用于检测真实的水样中的五种苯甲酰基脲。在这项工作中，由1-辛基-3-甲基咪唑氯化物和1-十二烷醇组成的绿色溶剂被用作萃取溶剂，产生材料稳定性，低密度和接近室温的合适凝固点的优点。通过一次一个因素的方法优化显著影响提取效率的参数。在最佳条件下，5种目标化合物在纯水中的回收率为87.39%~ 98.05%，相关系数为0.9994 ~ 0.9997。方法的检出限为0.09-0.16 μg/L。富集因子在171-188之间。线性范围为0.5-500 μg/L。方法用于环境水样中苯甲酰脲类化合物的测定，回收率为81.38- 97.67%，结果令人满意。
We present a novel dispersive liquid–liquid microextraction method based on the solidification of deep eutectic solvent coupled with high‐performance liquid chromatography with a variable‐wavelength detection for the detection of five benzoylureas in real water samples. In this work, a green solvent consisting of 1‐octyl‐3‐methylimidazolium chloride and 1‐dodecanol was used as an extraction solvent, yielding the advantages of material stability, low density, and a suitable freezing point near room temperature. Parameters that significantly affect extraction efficiency were optimized by the one‐factor‐at‐a‐time approach. Under optimal conditions, the recoveries of five target compounds were obtained ranging from 87.39 to 98.05% with correlation coefficients ranging from 0.9994 to 0.9997 for pure water. The limits of detection were in the range of 0.09–0.16 μg/L. The enrichment factors were in the range of 171–188. Linearities were achieved in the range of 0.5–500 μg/L. The proposed method was successfully applied to determine benzoylureas in environmental water samples with a satisfactory recovery of approximately 81.38–97.67%.