多阶段pH-峰值聚焦液态色谱用水友性聚合物凝柱用于分离稀土元素
Masami Shibukawa1, Yosuke Onoyama1, Yuiko Handa-Tasaki1
1Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan.
Journal of chromatography. A
|March 24, 2024
概括
一种新的多阶段pH-峰值聚焦液态色谱方法有效地使用水友性聚合物凝柱分离稀土金属离子. 这种技术将离子集中在pH值边界,以有效地分离像和这样的元素.
科学领域:
- 分析化学 分析化学
- 分离科学 分离科学
- 材料科学 材料科学 材料科学
背景情况:
- 稀土金属离子在各种科学和工业应用中存在重大分离挑战.
- 现有的染色学方法往往难以有效和可扩展地分离这些化学上相似的元素.
研究的目的:
- 开发一种新的染色学技术,以有效地分离稀土金属离子.
- 为了研究水友性聚合物凝柱在多阶段pH-峰值聚焦液态色谱系统中的使用.
- 证明该方法在分离一系列特定稀土元素方面的能力.
主要方法:
- 开发一个多阶段pH-峰值聚焦液态色谱系统.
- 使用装有水友性聚合物凝 (交联氧化甲基烯酸聚合物凝) 的柱子.
- 使用与乙乙和1,10-phenanthroline在基本移动阶段的协同提取,其次是随着pH值的下降逐步渐变化化.
主要成果:
- 成功地将金属离子的染色学提取到静止凝阶段.
- 每个金属离子在列内不同的pH边界的度.
- 从使用11.8毫升柱的1毫升样本注射中实现了La (III),Ce (III),Nd (III),Eu (III),Y (III),Tb (III) 和Yb (III) 的相互分离.
- 证明了该方法在准备性尺度分离中的有效性.
结论:
- 开发的多阶段pH-峰值聚焦液态色谱法对于稀土金属离子分离非常有效.
- 水友性聚合物凝柱为这种分离技术提供了强大的静止相.
- 这种方法显示出大规模 (准备性) 稀土元素分离的巨大潜力.
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