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使用金属有机框架从牛奶中磁性固体相提取四环素MIL-101(Cr) -NH2功能化水友性磁性纳米粒子

Hongmei Liu¹, Yue Li¹, Sikai Wang¹

¹School of Science, Xihua University, Chengdu 610039, China.

|May 12, 2024

概括

一种新的磁性材料Fe3O4@PDA@MIL-101(Cr) -NH2,可以有效地从牛奶中提取四环素 (TCs). 这种磁性固相提取方法提供了一种灵敏而准确的方法来检测食品样本中的这些污染物.

科学领域:

材料科学材料科学材料科学
分析化学分析化学
食品安全食品安全

背景情况:

四环素 (TCs) 是广泛使用的抗生素,它们在牛奶中的残留物引起了严重的食品安全问题.
在牛奶等复杂基质中开发高效和敏感的TC检测方法至关重要.

研究的目的:

合成和描述一种新的磁性固相提取 (MSPE) 吸附剂,用于从牛奶中提取四环素.
优化MSPE条件并评估开发方法的性能,并与HPLC用于TC分析相结合.

主要方法:

用MIL-101 ((Cr)) -NH2 (Fe3O4@PDA@MIL-101 ((Cr)) -NH2) 功能化的水友多多巴胺修饰的Fe3O4磁性纳米颗粒的合成.
优化MSPE参数,包括吸附剂剂量,提取时间,pH值和脱附条件.
使用高性能液体染色学 (HPLC) 分析四环素.

主要成果:

Fe3O4@PDA@MIL-101(Cr) -NH2吸附剂证明了方便的磁分离和高结合能力的TCs.
聚多巴胺涂层增强了水友性和提取效率,使得可以提取微量TC.
优化的MSPE-HPLC方法显示出极好的线性 (R2 ≥0.9989),良好的准确性 (82.2%-106.1%),以及低检测极限 (2.18-6.25μg L-1).

结论:

开发的基于Fe3O4@PDA@MIL-101(Cr) -NH2的MSPE方法对乳中的四环素的敏感和准确的确定是有效的.
这种方法为乳制品中抗生素残留物的常规监测提供了一个有希望的工具.

关键词:

高性能液体色谱学高性能液体色谱学磁性固体相提取磁性固体相提取金属有机框架的框架.牛奶牛奶牛奶牛奶环素四环素的使用方法

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