School of Food Engineering, Ludong University, Yantai, Shandong, 264025, PR China.
School of Chemistry, Sun Yat-Sen University, Guangzhou, Guangdong, 510000, PR China.
Talanta. 2024 Dec 1;280:126746. doi: 10.1016/j.talanta.2024.126746. Epub 2024 Aug 23.
Magnetic solid-phase extraction (MSPE) technology for tetracycline (TCC) was developed by employing the novel and pre-designed FeO-COOH@hydrogen-bonded organic frameworks (HOFs) adsorbents in complex food samples. The HOF shell was grown onto the FeO-COOH core by in-situ self-assembled method. The excellent MSPE performances with less solvent, less adsorbent and time consumption were derived from the hydrogen bonding, π-π and hydrophobic interactions between HOF shell and TCC. Combined with HPLC analysis, FeO@ HOFs adsorbent reduced matrix effects and the established MSPE-HPLC method for TCC gave the linearity of 0.001-6 μg mL with the limit of detection 0.0003 μg mL. The recoveries in pure milk, canned yellow peach and carrot were 82.4-103.7 %. The method provided a simple, efficient and dependable alternative to monitor trace TCC antibiotics in food or environmental samples.
采用新型设计的 FeO-COOH@氢键有机骨架（HOFs）吸附剂，开发了用于四环素（TCC）的磁固相萃取（MSPE）技术，用于复杂食品样品。通过原位自组装方法将 HOF 壳生长到 FeO-COOH 核上。HOF 壳与 TCC 之间的氢键、π-π 和疏水相互作用赋予了 MSPE 出色的性能，表现为使用更少的溶剂、更少的吸附剂和更短的时间消耗。结合 HPLC 分析，FeO@HOFs 吸附剂降低了基质效应，所建立的 MSPE-HPLC 方法对 TCC 的线性范围为 0.001-6 μg mL，检测限为 0.0003 μg mL。在纯牛奶、罐装黄桃和胡萝卜中的回收率为 82.4-103.7%。该方法为监测食品或环境样品中的痕量 TCC 抗生素提供了一种简单、高效和可靠的替代方法。
