深共晶溶剂
吸附
共晶体系
十二醇
色谱法
溶剂
复合数
化学
材料科学
核化学
有机化学
复合材料
合金
作者
Xiaodong Huang,Huifang Liu,Xia Xu,Ge Chen,Lingyun Li,Yanguo Zhang,Guangyang Liu,Donghui Xu
出处
期刊:Foods
[Multidisciplinary Digital Publishing Institute]
日期:2022-12-20
卷期号:12 (1): 8-8
被引量:5
标识
DOI:10.3390/foods12010008
摘要
In this study, a novel composite material prepared by using deep eutectic solvent (tetrabutylammonium chloride-dodecanol, DES5) functionalized magnetic MWCNTs−ZIF−8 (MM/ZIF−8@DES5) was employed as an adsorbent for the magnetic solid-phase extraction of six pyrethroids from tea drinks. The characterization results show that MM/ZIF−8@DES5 possessed sufficient specific surface area and superparamagnetism, which could facilitate the rapid enrichment of pyrethroids from tea drink samples. The results of the optimization experiment indicated that DES5, which comprised tetrabutylammonium chloride and 1-dodecanol, was selected for the next experiment and that the adsorption properties of MM/ZIF−8@DES5 were higher than those of MM/ZIF−8 and M-MWCNTs. The validation results show that the method has a wide linear range (0.5–400 μg L−1, R2 ≥ 0.9905), low LOD (0.08–0.33 μg L−1), and good precision (intra-day RSD ≤ 5.6%, inter-day RSD ≤ 8.6%). The method was successfully applied to the determination of pyrethroids in three tea drink samples.
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