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通过混合生物炭吸收剂增强四环素的固体相提取:克洛雷拉和竹子生物炭的比较研究

Tao Zhao¹, Aonan Sun¹, Ruoxuan Xu¹

¹School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan 250353, China.

Journal of chromatography. A

|June 24, 2024

概括

一种新的混合生物碳吸附剂增强了固相提取 (SPE) 中的抗生素去除. 这种混合生物炭系统,结合了菌和竹子,改善了食品安全分析中的四环素检测.

科学领域:

环境化学环境化学
分析化学分析化学
材料科学材料科学材料科学

背景情况:

生物炭是固相提取 (SPE) 的可持续吸附剂,特别是用于四环素 (TC) 等抗生素.
基于生物炭的SPE系统中精确的分离机制需要进一步阐明.
了解这些机制对于优化生物炭在环境监测和食品安全中的应用至关重要.

研究的目的:

在SPE中研究和比较 хлорелла生物炭和竹生物炭的分离机制.
为了优化混合的菌/竹子生物炭SPE系统用于四环素分析.
应用最优化的系统来检测动物来源食品中的四环素.

主要方法:

生物炭微观结构的表征.
吸附热力学和竞争性吸附动力学的研究.
H+反定位和选择性吸附实验.
盒子-Behnken设计,以优化混合吸附剂比率.
应用优化的SPE方法与HPLC相结合,用于食品样本分析.

主要成果:

一种混合吸收剂 (95% 菌生物炭,5% 竹生物炭) 与单一生物炭系统相比,显示出更好的选择性和减少不可逆转的吸附.
分离机制涉及一个由富含氧的功能组和快速吸附动力学驱动的分区模型,受静电相互作用的影响.
优化的混合生物炭-SPE方法与HPLC相结合,在动物内脏中检测四环环素时,实现了高恢复率 (80.80-106.98%) 和低相对标准偏差 (0.24-14.69%).

结论:

该研究阐明了基于生物炭的SPE的复杂分离机制,突出了混合生物炭系统的协同效应.
一种混合化的微孔菌生物炭和半孔竹生物炭为抗生素SPE提供了卓越的性能.
这项研究推动了生物炭在环境监测和食品安全方面的应用,特别是用于复杂矩阵中检测四环素.

关键词:

动物内脏动物内脏.生物炭是一种生物炭.分离机制分离机制.固体相提取方法固体相提取方法环素的四环环素是一种.

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