TPE-COF键合金属纤维的制备及作为SPME吸附剂用于液相色谱预富集水中抗生素的研究  

Preparation of TPE-COF Grafted Metal Fiber and Its Application as SPME Adsorbent for Preconcentration of Antibiotics in Water by Liquid Chromatography

作　　者：吕炳志 刘宏宇[1,2] 邢成龙 杨梦奇 李保会 Lv Bingzhi;Liu Hongyu;Xing Chenglong;Yang Mengqi;Li Baohui(Department of Environmental Science&Engineering,North China Electric Power University,Hebei,071003;Hebei Key Laboratory of Power Plant Flue Gas Multi Pollutants Control,Hebei,071003)

机构地区：[1]华北电力大学环境科学与工程系,河北071003 [2]河北省燃煤电站烟气多污染物一体化控制重点实验室,河北071003

出　　处：《当代化工研究》2024年第18期153-155,共3页Modern Chemical Research

基　　金：国家自然科学基金“具有阵列微孔表面结构的金属纤维的制备及在PCBs固相微萃取中的应用”(项目编号:21974043)。

摘　　要：将一种含有四苯乙烯基团的共价有机框架材料(TPE-COF)化学键合到蚀刻不锈钢纤维作为固相微萃取(SPME)的吸附剂,结合高效液相色谱法(HPLC),建立了水中痕量氟喹诺酮类(FQs)抗生素的在线SPME-HPLC分析方法。该方法的线性相关系数为0.9864~0.9914,检出限(S/N=3)为0.31~0.53μg·L^(-1),来自同一生产批次的3根纤维之间的相对标准偏差始终保持在6.9%以下。将建立的方法用于实际水样中FQs的测定,回收率为92.10%~98.96%。A covalent organic framework material(TPE-COF)containing tetraethylene(TPE)groups was chemically bonded to etched stainless steel fibers as an adsorbent for solid-phase microextraction(SPME),combined with high performance liquid chromatography(HPLC).The linear correlation coefficient of was 0.9864~0.9914,and the detection limit(S/N=3)was 0.31~0.53μg·L^(-1).The relative standard deviation between three fibers from the same production batch was less than 6.9%.The established method was applied to the determination of fluoroquinolones(FQs)in actual water samples,and the recovery was 92.10%~98.96%.

关 键 词：固相微萃取 高效液相色谱 共价有机框架 抗生素 

分 类 号：O661.1[理学—分析化学]