| 标题 |
 High efficient adsorption of aflatoxins in peanuts by novel covalent organic framework through multiple interactions 新型共价有机骨架通过多重相互作用高效吸附花生中黄曲霉毒素
相关领域
黄曲霉毒素
吸附
共价键
化学
共价有机骨架
食品科学
环境化学
有机化学
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| 其它 | Aflatoxins are the most toxic and high-profile mycotoxins with high occurrence in grain and nuts. To effectively adsorb and sensitively detect aflatoxins in peanuts, two novel covalent organic frameworks (TF-COF, TH-COF) were fabricated by Schiff-base reaction of N,N,N′,N′-tetra (p-aminophenyl)-p-phenylenediamine with 2,3,5,6-tetra-fluoroterephthaldehyde and terephthalendehyde, respectively. The TF-COF shows higher adsorption capacity (35–44 mg g−1) for aflatoxins than TH-COF (26–37 mg g−1) because abundant fluorine functional groups in TF-COF offer more adsorption sites. A sensitive and practical method for determining aflatoxins (G2, G1, B2 and B1) in peanuts was developed by combining TF-COF-based extraction technology with high performance liquid chromatography-fluorescence detector. |
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