期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 63, 期 8, 页码 2154-2161出版社
AMER CHEMICAL SOC
DOI: 10.1021/jf505760y
关键词
Metal-organic framework (MOF); MIL-101; vegetable oil; herbicide; dispersive microsolid-phase extraction
资金
- National Natural Science Foundation of China [21207047]
Dispersive microsolid-phase extraction based on metalorganic framework has been developed and applied to the extraction of triazine and phenylurea herbicides in vegetable oils in this work. The herbicides were directly extracted with MIL-101 from diluted vegetables oils without any further cleanup. The separation and determination of herbicides were carried out on high performance liquid chromatography. The effects of experimental parameters, including volume ratio of n-hexane to oil sample, mass of MIL-101, extraction time, centrifugation time, eluting solvent, and elution time were investigated. The Students t test was applied to evaluate the selected experimental conditions. The limits of detection for the herbicides ranged from 0.585 to 1.04 mu g/L. The recoveries of the herbicides ranged from 87.3 to 107%. Our results showed that the present method is rapid, simple, and effective for extracting herbicides in vegetable oils.
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