磁性两吸附剂用于从水样中同时从磁性固态相中提取麻醉剂
Yongsong Wu1, Zhenzhen Liu2, Huiyu Zhao2
1Zhejiang University of Technology, College of Chemical Engineering, Hangzhou 310014, PR China; State Key Laboratory of Agricultural Products Safety & Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
一种新型的磁性两吸收剂Fe3O4@PDA@DVB-NVP,已开发用于同时检测水中的caine和benzodiazepine麻醉剂. 这种方法为环境分析提供了更高的灵敏度和速度.
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:
- 麻醉剂如凯因和二可以污染水源.
- 检测水中的这些化合物的有效方法对于公共卫生和环境监测至关重要.
研究的目的:
- 开发一种新的磁性两吸收剂,用于同时丰富和确定caine和二类麻醉剂.
- 建立一种高效的磁性固相提取 (MSPE) 方法与LC-MS/MS相结合,用于水样中的麻醉分析.
主要方法:
- 在聚多巴胺修饰的磁球上,使用divinylbenzene (DVB) 和N-vinyl-2-pyrrolidinone (NVP) 的共聚合制造一个核心外磁性两性吸附剂 (Fe3O4@PDA@DVB-NVP).
- 优化MSPE参数,包括吸附剂剂量,pH值,超声波吸附时间和化剂溶剂.
- 使用液体染色学-并联质谱法 (LC-MS/MS) 分析富化麻醉剂.
主要成果:
- Fe3O4@PDA@DVB-NVP吸附剂表现出平衡的脂友性和水友性,使麻醉剂能够有效吸附.
- 开发的MSPE-LC-MS/MS方法实现了高灵敏度,量化极限 (LOQ) 从0.0001到0.009μg L−1.1.
- 在方法验证过程中获得了优异的线性,恢复率 (61.197.2%) 和精度 (RSD ≤6.8%).
结论:
- Fe3O4@PDA@DVB-NVP磁性两吸附剂为同时麻醉提取提供了一个高效的平台.
- 开发的MSPE-LC-MS/MS方法优于现有技术,为水样分析提供更高的灵敏度,速度和更低的溶剂消耗.
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