一种低成本的基于纤维素的复合材料,作为一种高效的固相提取吸附剂,用于在水中测定抗生素
Damilare Olorunnisola1,2,3,4, Chidinma G Olorunnisola1,3, Christina Günter5
1Institute of Chemistry, University of Potsdam D-14476 Potsdam Germany ataubert@uni-potsdam.de.
RSC advances
|September 12, 2025
概括
一种新的,负担得起的基于纤维素的吸附剂 (C/PVPP/MDI) 有效地从水中去除了五种常见的抗生素. 这种可持续材料为环境监测提供了成本效益高的解决方案,尤其是在发展中国家.
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:
- 制药污染物,包括抗生素,污染水源,对生态系统和公共健康构成风险.
- 许多地区的监测能力有限,阻碍了这些污染物的检测和管理.
- 需要具有成本效益和高效的分析方法来确定水中的抗生素.
研究的目的:
- 开发和表征一种低成本,基于纤维素的固相提取 (SPE) 吸附剂,用于确定水中的五种关键抗生素.
- 评估新型吸附剂的分析性能和可重复使用性.
- 为了比较吸附剂的有效性与商业替代品.
主要方法:
- 一种基于纤维素的吸附剂 (C/PVPP/MDI) 的合成,这种吸附剂是通过将纤维素与聚乙烯多聚利 (PVPP) 和4,4-甲二二酸 (MDI) 进行交叉链接.
- 使用C/PVPP/MDI吸附剂从水样中固体相提取四环素,安西林,硫甲醇,青素V和氨基醇.
- 分析分析性能的分析,包括检测极限,线性和回收率,在自来水和河水中.
- 在多个提取周期中评估吸附剂的可重复使用性.
主要成果:
- C/PVPP/MDI吸附剂表现出极好的分析性能,检测极限低 (0.03-2.07 ng L-1),线性高 (R2 > 0.99).
- 在自来水和河水中,目标抗生素的恢复率高 (84.8-97.6%),与商业吸附剂相美.
- 吸附剂可重复使用长达五个周期,没有显著的性能损失.
- 这种C/PVPP/MDI吸附剂比商业替代品便宜约50%.
结论:
- 开发的C/PVPP/MDI吸附剂是一种高效,可重复使用,可负担得起的材料,用于水中的抗生素的SPE.
- 这种可持续材料在环境监测抗生素污染物方面具有重大潜力,特别是在资源有限的环境中.
- 这项研究突出了昂贵的商业SPE材料的可行替代方案,用于广泛应用在水质评估中.
更多相关视频
06:54Author Spotlight: Understanding and Detecting Environmental Antimicrobial Resistance by Combining Culture-Based Techniques and Genomics
Published on: July 19, 2024
1.5K
11:59Extraction and Detection of Geosmin and 2-Methylisoborneol in Water and Fish using High-Capacity Sorptive Extraction Probes and GC-MS
Published on: July 3, 2025
1.4K
相关概念视频
Ion Exchange
1.6K
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
1.6K
Ion-Exchange Chromatography
3.0K
Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
3.0K
Size-Exclusion Chromatography
2.7K
In size-exclusion chromatography (SEC), also known as molecular-exclusion or gel-permeation chromatography, molecules are separated based on their sizes. This technique is important for separating large molecules such as polymers and biomolecules. The two classes of micron-sized stationary phases encountered in SEC are silica particles and cross-linked polymer resin beads. Both materials are porous, but their pore sizes vary significantly.
Silica particles offer advantages such as rigidity,...
Silica particles offer advantages such as rigidity,...
2.7K
