高效的分离Am (III) 和Pu (IV) 从瘦肉料和土壤使用取色谱树脂,在离子液体中含有dwglycolamide的高效分离
Akalesh G Yadav1, Prasanta K Mohapatra2, Thichur P Valsala3
1Advanced Fuel Fabrication Facility, Nuclear Recycles Board, Tarapur, Maharashtra 401502, India; Homi Bhabha National Institute, Anushakti Nagar, Mumbai 400094, India.
Journal of chromatography. A
|August 19, 2023
概括
一种新型树脂有效地将美洲 (Am3+) 和 (Pu4+) 从核废物和环境样本中分离出来. 这种方法在放射性废物管理中提供了高效的行为离子分离方法.
科学领域:
- 放射化学 放射化学是指辐射化学.
- 分离科学 分离科学
- 环境化学环境化学
背景情况:
- 对核废物管理和环境监测至关重要的是精确地分离和定量行为离子.
- 传统的活性化物分离方法可能是复杂和耗时的.
- 开发高效的提取色谱树脂对于改善分离过程至关重要.
研究的目的:
- 开发和评估一种基于TODGA的提取色谱树脂,用于分离美洲 (Am3+) 和 (Pu4+).
- 评估树脂在从各种现实世界样本中分离活性物质的有效性,包括实验室废物,环境水和土壤.
- 为了优化化条件,有效地回收Am3+和Pu4+.
主要方法:
- 一种基于TODGA的提取色谱树脂合成并使用,该树脂包含一种离子液体.
- 样品的预处理包括将料溶液调整为3M酸 (HNO).
- 通过对柱子进行调节,加载,用3M HNO3洗,并使用EDTA用于Am3+和酸和HNO3混合物用于Pu4+进行选择性化来实现分离.
主要成果:
- 树脂证明了Am3+和Pu4+从复杂矩阵中有效分离.
- 观察到尖的化峰值与最小的尾部,表明高分离效率.
- 结果显示与现有文献值有很好的一致性,验证了该方法的性能.
结论:
- 基于TODGA的提取色谱树脂提供了一种高效的方法来分离行为离子.
- 该技术适用于各种样本类型,包括来自核设施和环境来源的具有挑战性的矩阵.
- 开发的方法为核废物管理和环境分析的活性化物分离提供了有希望的进步.
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