一种新型的深度环氧溶剂修改磁共价有机框架,用于药用植物和环境样本中选择性分离和确定微量铜离子
Ya Liu1, Xiaofang Yang2, Jiayi Hu1
1College of Pharmacy, Dali University, Dali, Yunnan, 671000, China.
Analytica chimica acta
|January 21, 2024
概括
开发了一种新的磁吸附剂MCOF-DES,用于微量铜离子的确定. 这种方法可以在药用植物和环境样本中进行选择性分离和准确分析,克服现有技术的局限性.
科学领域:
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 样品中低重金属含量需要有效的预处理技术.
- 磁性分散微固态相提取 (MDMSPE) 是广泛使用的,但往往缺乏选择性和容量.
- 研究重点是修改现有的吸附剂,以提高重金属分析的性能.
研究的目的:
- 为MDMSPE合成和评估一种新的MCOF-DES吸附剂.
- 开发一种选择性和敏感的方法来确定微量铜离子 (Cu2+).
- 在药用植物和环境样本中应用分析Cu2+的方法.
主要方法:
- 合成一个用深度性溶剂 (DES) 修改的磁共价有机框架 (MCOF).
- 在磁性分散微固态相提取 (MDMSPE) 中应用MCOF-DES吸附剂.
- 使用感应合等离子光学发射光谱法 (ICP-OES) 确定Cu2+.
主要成果:
- 成功合成并对MCOF-DES吸附剂进行了表征.
- 在最佳条件下,Cu2+的丰富系数 (EF) 为30.
- 达到0.16μg L-1的检测极限 (LOD) 和0.54μg L-1的量化极限 (LOQ).
- 结果显示与ICP-MS具有很高的一致性,证实了方法的准确性.
结论:
- 基于MCOF-DES的MDMSPE方法可以选择性地分离和确定微量Cu2+.
- 该方法有效地分析药物材料和环境样本中的Cu2+.
- 这种方法提供了一个有前途的,选择性的和敏感的技术,用于在各种现实世界样本中确定微量Cu2+.
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