希夫基功能化凝用于药品和水样中的Cu (II),Ni (II) 和Cd (II) 的同时分离和预度
Feyzullah Tokay1, Sema Bağdat1
1Department of Chemistry, Faculty of Science and Arts, Balıkesir University, Balıkesir, Turkey.
Turkish journal of chemistry
|December 25, 2023
概括
这项研究优化了一种检测水和制药中的铜 (Cu), (Ni) 和 (Cd) 的方法. 改进的技术为这些必不可少的微量金属提供了高精度和低检测极限.
科学领域:
- 分析化学 分析化学
- 环境化学环境化学
- 材料科学 材料科学 材料科学
背景情况:
- 精确的微量金属如铜 (Cu) (II), (Ni) (II) 和 (Cd) (II) 的确定对于环境监测和制药质量控制至关重要.
- 现有的分离和预先缩这些金属的方法可能是复杂和耗时的.
- N-N'-bis(5-甲基沙利基) 2-基-1,3-二胺基改性凝具有高效金属离子吸附的潜力.
研究的目的:
- 改进从水样和药品中分离和预先缩Cu (II),Ni (II) 和Cd (II) 的方法.
- 优化实验条件,以提高金属离子测定的灵敏度和精度.
- 通过使用认证的参考材料和现实世界的样本来验证方法的性能.
主要方法:
- 用N-N'-bis(5-甲基沙利烯) -2-基-1,3-二胺修改凝,用于选择性金属吸附.
- 使用单变量和多变量方法优化包括pH值,样品体积,溶解剂特性,吸附剂质量和流量等参数.
- 使用感应合等离子体光学发射光谱法 (ICP-OES) 确定分析物质.
主要成果:
- 优化的方法表现出极佳的精度,Cu (II) 的相对标准偏差为2.9%,Ni (II) 为3.0%,Cd (II) 为3.3%.
- 实现了高回收率,从98.8%到101.5%,表明分析物损失最小.
- 已达到低检测极限:Cu (II) 的62.4 ng L−1,Ni (II) 的39.5 ng L−1和Cd (II) 的28.2 ng L−1.
结论:
- 改进的方法提供了一种灵敏,准确和可靠的方法来预先缩和确定Cu (II),Ni (II) 和Cd (II).
- 该方法在各种矩阵 (包括水和药品样本) 上的成功应用凸显了其实用性的实用性.
- 该技术适用于环境和制药质量控制环境中的常规分析.
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