探索二次资源的潜力:用于关键原材料表征的LA-ICP-MS
Debora Foppiano1, Einar Jonsson1, Sarina Bao1
1SINTEF Industry, Trondheim, Norway.
Talanta
|February 3, 2026
概括
本研究比较了二次资源中关键原材料量化的方法. 激光除感应合等离子体质谱法 (LA-ICP-MS) 对挑战性样品,如矿石和渣,具有优势.
科学领域:
- 地质化学 地质化学
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
背景情况:
- 欧洲的目标是通过利用矿山尾矿等二次资源来提高弹性.
- 精确量化这些资源中的关键原材料对于经济和环境的恢复至关重要.
- 像ICP-MS这样的传统方法需要样本溶解,这对耐火材料来说可能很困难.
研究的目的:
- 为了比较分析方法来量化二次资源中的关键原材料.
- 评估不同样本制备和分析技术在矿石和渣中的稀土元素 (REEs) 的有效性.
- 提供对具有挑战性的矩阵元素分析的最佳方法的见解.
主要方法:
- 在微波辅助的酸消化样本上进行感应合等离子体质谱 (ICP-MS/MS).
- 在固体样本上进行激光切除 (LA-ICP-MS).
- 在LA-ICP-MS中,使用酸粉末的流体融合,制成玻璃珠.
- LA-ICP-MS使用直接分析小颗粒粉末与非矩阵匹配校准.
主要成果:
- 无论是ICP-MS/MS还是LA-ICP-MS都可以确定矿石和渣中的REE成分.
- 对于难以溶解的样品,LA-ICP-MS方法 (玻璃珠,颗粒粉) 是有效的.
- 方法选择取决于粒子大小,制备成本和矩阵组成等因素.
结论:
- 不同的分析方法为关键原材料量化提供了明显的优点和缺点.
- 特别是在新的校准策略下,LA-ICP-MS为直接固体分析提供了可行的替代方案.
- 考虑样本特征和成本效益分析对于选择二次资源的最佳量化方法至关重要.
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